CN107044940A - Consider the crushing test device of space constraint state - Google Patents
Consider the crushing test device of space constraint state Download PDFInfo
- Publication number
- CN107044940A CN107044940A CN201710408354.3A CN201710408354A CN107044940A CN 107044940 A CN107044940 A CN 107044940A CN 201710408354 A CN201710408354 A CN 201710408354A CN 107044940 A CN107044940 A CN 107044940A
- Authority
- CN
- China
- Prior art keywords
- unit
- endless glide
- track
- test device
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/006—Crack, flaws, fracture or rupture
- G01N2203/0067—Fracture or rupture
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a kind of crushing test device for considering space constraint state, it can more really reflect the constrained situation of particle test specimen in space, granule partial restrained condition under restricted by three-dimensional space state status is studied.Crushing test device provided by the present invention, it is characterised in that including：Peace turns supporting part, has：Upper installation unit, lower installation unit and support unit；Pressure unit, installed in installing on supporting part, has：Driver element, forcing unit and sample placement unit；Longitude adjustment portion, has：Upper endless glide and lower endless glide；Orbit portion, has：Annular trapped orbit and at least one semi-circular slidably track；Constriction is clamped, with least one clamping confining part, row constraint is entered to test specimen；Test department, is connected with pressure unit, collects pressure and the displacement in course of exerting pressure that pressure unit applies to test specimen, and is handled, and obtains corresponding test result.
Description
Technical field
The invention belongs to granular materials mechanics study field, and in particular to one kind is having space law for measuring granular materials
To the crushing test device of broken situation during constraint.
Background technology
Particulate matter refers to discrete state substance system, be with continuous state material (solid, fluid) distinguish it is another big
Physical form, the Mechanics Phenomenon of granular system is more complicated than solid and fluid, due to the complexity of its Mechanics Phenomenon, it is impossible to again with biography
The Solid Mechanics of system or hydromechanical research method characterize its mechanical characteristic, and another aspect Particle Breakage is inherently
One extremely complex process, the fragmentation status after either the criterion of Particle Breakage is still crushed all is not unified at present
Conclusion.Due to the heterogeneity of granular materials structure, each circumgranular particle composition, volume fraction and ligancy etc. are each
Differ, the restrained condition and degree that peripheral granule is provided particle are different, cause particle internal stress distribution complicated
And it is changeable, there is large effect to Particle Breakage.Substantial amounts of numerical experiments and physical test discovery, particle and neighboring particles
Contact environment determine restrained condition residing for particle, the difference of restrained condition causes the broken form and breaking strength of particle
Change differs.Thus be in contact with the neighboring particles change of the factors such as the contact number to be formed and contact position of particle is enabled to
Great change occurs for the crushing behavior of particle.
The numerous scholars of recent domestic have carried out going deep into experimental and theoretical study to the crushing behavior of particle.
Tsoungui in 1999 etc. is distributed lower Particles in Two Dimensions proposition particle stretch failure criteria for random contact power, recognizes
Two groups of orthogonal equivalent opposite forces can be equivalent to act on the complicated contact force of particle, and by preparing the stone of some unified sizes
Cream disk model has carried out physical verification.
McDowell and Amon in 2000 etc. tests the breaking strength Follow Weibull point for proposing particle by radial loaded
Cloth, such research reflects Fracture law of the particle in the case of two contact points, but can not illustrate the contact distribution of complexity
Influence to Particle Breakage；McDowell and Lim in 2007 is on the basis of this theory, and being averaged for the particle that begins one's study is matched somebody with somebody
Influence of the digit to aggregates body intensity.
Russell etc. research shows that Particle Breakage is mainly maximum unilateral force more than caused by threshold value；Ben- in 2010
Nun and Einav is established according to Tsoungui and Sukumaran research can be with the two dimension of definitions particles shear fails criterion
The broken threshold model of grain, introduces influence of the particle coordination number to contact force threshold value under two dimensional surface restraint condition, but three-dimensional space
Between that circumgranular contact will be complicated in the case of restrained condition is many.
Wang in 2016 etc. has the broken of the spheric granules of different ligancies using discrete unit numerical simulation
Behavior, and draw Particle Breakage intensity and the linear rule of ligancy.
Under study two-dimensional planar environment during influence of the particle coordination number to contact force threshold value, Salami etc. is in omnipotent material
A particle clamping device has been installed additional on material testing machine (MTS), by adjusting the quantity and angle of fixture, has carried out different situations
Under Particle Breakage experiment.The device Preliminary experiment results, which show that the distribution of ligancy and contact point is broken to Particles in Two Dimensions, weight
Influence.
Although the broken numerically modeling of existing relevant Particles in Two Dimensions achieves certain achievement, in a practical situation
Grain can not possibly often only exist in two dimensional surface constrained state.It is accurate to the judgement of power currently for three dimensional particles local restriction state
Then the research of middle contact force threshold influence is extremely rare, more not specifically designed for granule partial under restricted by three-dimensional space state status
The experimental rig of restrained condition research.Therefore carry out and be directed to granule partial restrained condition under restricted by three-dimensional space state status and grind
Study carefully most important.
The content of the invention
The present invention is carried out to solve above-mentioned problem, it is therefore intended that provide a kind of consideration restricted by three-dimensional space state
Crushing test device, can more really reflect the constrained situation of particle in space, to restricted by three-dimensional space state
In the case of granule partial restrained condition studied.
The present invention to achieve these goals, employs following scheme.
The present invention provides a kind of crushing test device for considering space constraint state, it is characterised in that including：Peace turns support
Portion, has：Upper installation unit, lower installation unit and the support unit between upper installation unit and lower installation unit；Pressure
Portion, installed in installing on supporting part, has：Driver element, the forcing unit being connected with the driver element and for placing
The sample placement unit of test specimen, forcing unit and sample placement unit be located between upper installation unit and lower installation unit,
And mutually it is arranged oppositely, driver element driving forcing unit moves back and forth applies pressure to test specimen；Longitude adjustment portion, tool
Have：The upper endless glide and lower endless glide set respectively around forcing unit and sample placement unit；Orbit portion, has：Ring
Shape trapped orbit and at least one semi-circular slidably track, annular trapped orbit around the setting of sample placement unit, and on
Lower two ends are separately fixed in endless glide and lower endless glide, the semi-circular slidably upper sliding end of track and downslide moved end
It is removably attached to respectively in endless glide and lower endless glide；Constriction is clamped, with least one clamping constraint structure
Part, each clamping confining part has a bare terminal end and a restrained end, and bare terminal end is fixed on annular trapped orbit or half
On the track of annular slidable track, restrained end enters row constraint towards simultaneously contact test sample to the test specimen；Test department,
It is connected with pressure unit, collects pressure and the displacement in course of exerting pressure that pressure unit applies to test specimen, and handled, is obtained
To corresponding test result, wherein, in the case of in semi-circular, slidably track is loose, upper sliding end and downslide moved end can
Slided respectively along upper endless glide and lower endless glide so as to adjust the longitude of semi-circular slidably track, structure is constrained in clamping
In the case of the bare terminal end of part is loose, bare terminal end can slide along the track to adjust the latitude of clamping confining part.
The crushing test device of consideration space constraint state involved in the present invention, can also have the feature that：Branch
It is the support bar for being arranged on installation unit and lower installation unit surrounding to support unit.
The crushing test device of consideration space constraint state involved in the present invention, can also have the feature that：Drive
Moving cell uses hydraulic-driven, and forcing unit is piston, sample placement unit for it is relative with piston to cylindrical shape bearing.
The crushing test device of consideration space constraint state involved in the present invention, can also have the feature that：On
Annular flange dish of endless glide and lower the endless glide all peripheries provided with a circle slide rail.
The crushing test device of consideration space constraint state involved in the present invention, can also have the feature that：About
Shu Duan top is cone shape.
The effect of invention and effect
(1) it is used to measure the experiment dress that granular materials crushes situation when there is space Normal Constraint the invention provides a kind of
Put, the device can not only measure shadow of the granule partial restrained condition to Particle Breakage situation in the case of two dimensional surface restrained condition
Ring, influence of the granule partial restrained condition to Particle Breakage situation under restricted by three-dimensional space state status can also be measured.
(2) experimental rig provided by the present invention can need to install or remove clamping device according to research, be applied with realizing
Plus the restraint condition of different constraint angles and different constraint numbers.
(3) experimental rig installing/dismounting provided by the present invention is simple, and cost is low, is easy to safeguard.
(4) experimental rig provided by the present invention can preferably simulate the physical constraint situation suffered by particle, be conducive to
The development of physical test in granular materials mechanics field, may advantageously facilitate granular materials mechanical meaurement technology, is also beneficial to simultaneously
Progradation is played in development to particle Computational Mechanics.
Brief description of the drawings
Fig. 1 is the structural representation for the crushing test device being related in the embodiment of the present invention；
Fig. 2 is the part-structure schematic diagram one for the crushing test device being related in the embodiment of the present invention；
Fig. 3 is the part-structure schematic diagram two for the crushing test device being related in the embodiment of the present invention；
Fig. 4 (a) is longitude adjustment portion, orbit portion and the structural representation for clamping constriction being related in the embodiment of the present invention
Figure, Fig. 4 (b) is the structural representation of the semi-circular being related in the embodiment of the present invention slidably track；
Fig. 5 is the restrained condition schematic diagram for the test specimen being related in the embodiment of the present invention；
Fig. 6 is to carry out the schematic diagram one that crushing test installs crushing test device in the embodiment of the present invention；
Fig. 7 is to carry out the schematic diagram two that crushing test installs crushing test device in the embodiment of the present invention；
Fig. 8 is to carry out the schematic diagram three that crushing test installs crushing test device in the embodiment of the present invention；
Fig. 9 is the shattering process schematic diagram of test specimen in crushing test involved by the embodiment of the present invention, wherein (a) is
Sample is not up to state diagram during broken critical value, and (b) is state diagram when sample starts to occur crackle, and (c) is to be split on sample
Line starts state diagram during extension, and (d) is state diagram when macroscopic cracking occurs in sample；And
Figure 10 is the contact force and the graph of relation of load deflection of the test specimen obtained in the embodiment of the present invention.
Embodiment
The crushing test device of consideration space constraint state involved in the present invention is elaborated referring to the drawings.
The part not elaborated in following examples belongs to prior art.
<Embodiment>
As shown in figure 1, crushing test device 10 includes：Peace turns supporting part 20, pressure unit 30, longitude adjustment portion 40, track
Portion 50, clamping constriction 60 and test department 70.
As shown in Figures 1 to 3, peace, which turns supporting part 20, has：Upper installation unit 21, lower installation unit 22 and install single positioned at upper
Support unit 23 between member 21 and lower installation unit 22.In the present embodiment, upper installation unit 21 and lower installation unit 22 are all
Rectangular-shape, support unit 23 is to erect the support bar 23a at 22 4 angles of upper installation unit 21 and lower installation unit.
Pressure unit 30, which is arranged on, to be installed on supporting part 20, and it has：Driver element (not shown), forcing unit 31,
And sample placement unit 32.Driver element is arranged in upper installation unit 21, to ensure pressurised driving process stable drive, holding
Loading capability is big, can stepless speed regulation, be easy to use hydraulic-driven in control, the present embodiment.Forcing unit 31 is located at upper peace
The lower section of unit 21 is filled, it is connected with the driver element, moved up and down by driving, so that on sample placement unit 32
Test specimen M applies specified pressure, in the present embodiment, and forcing unit 31 is piston, and the head of piston is load plate, itself and experiment
Sample M top is directly contacted.Sample placement unit 32 is fixed on lower installation unit 22, is cylindrical shape bearing, it with
The force surface of forcing unit 31 is mutually arranged oppositely, and upper surface is used to place test specimen M as placed side.
As shown in Figures 2 to 4, longitude adjustment portion 40 includes upper endless glide 41 and lower endless glide 42.Upper endless glide 41
Set around forcing unit 31, be annular flange dish of the periphery provided with a circle slide rail 41a.Lower endless glide 42 is put around sample
Put unit 32 to set, be annular flange dish of the periphery provided with a circle slide rail 42a.
As shown in figure 4, orbit portion 50 includes annular trapped orbit 51 and multiple semi-circulars slidably track 52.Annular is fixed
Track 51 is toroidal, is set around sample placement unit 32, the track 51a with chute, and it are offered in the middle part of it
Upper and lower ends be separately fixed in endless glide 41 and lower endless glide 42.Slidably track 52 is semicircular arc to semi-circular
Shape, the slide rail of its upper sliding end and downslide moved end respectively with upper endless glide 41 and lower endless glide 42 matches, Neng Goufen
Do not enter line slip along slide rail 41a and slide rail 42a so as to adjust longitude of the semi-circular slidably residing for track 42, adjusting to conjunction
After suitable longitude, upper sliding end and downslide moved end can be fixed on by track fixing threaded hole and bolt by the upper He of endless glide 41
In lower endless glide 42, so that slidably track 42 is fixed at the longitude semi-circular, in addition, semi-circular slidably track 52
Middle part also offer the track 52a with chute.
Installed in orbit portion 50, the test specimen M placed on sample placement unit 32 is in annular trapped orbit
51 and the centre of sphere of multiple semi-circulars slidably spherosome that track 52 is surrounded.
Clamping constriction 60 has multiple clamping confining parts 61, and each clamping confining part 61 has a clamping
Hold 61a and restrained end 61b, bare terminal end 61a and annular trapped orbit 51 and semi-circular slidably track 52 track phase
Match somebody with somebody, can slide along the track so as to adjust the latitude residing for clamping confining part 61, adjust to suitable latitude, passing through
Bare terminal end 61a can be fixed in orbit by track fixing threaded hole and bolt, so that clamping confining part 61 is fixed on the latitude
At degree, restrained end 61b is towards test specimen M, and its top is cone shape, and nib contacts test specimen M, to the examination
Test sample M and enter row constraint.
Test department 70 is connected with pressure unit 30, and control pressure unit 30 carries out pressure-loaded, and collects 30 pairs of examinations of pressure unit
Test sample M pressure applied data and in course of exerting pressure forcing unit 31 displacement data, and to these data at
Reason, obtains corresponding test result.
In the present embodiment, the semi-circular installed slidably the number of track 52 and clamping confining part 61 number,
And the adjustment of longitude and latitude is all the constraints (ligancy) according to required for test specimen M (spherical particle) come really
It is fixed, i.e., according to the number and position of constraint determine, be specially：
Semi-circular slidably track 52 need not be installed if test specimen M is only by the constraint of top and bottom, such as
Fruit test specimen M in addition to the constraint by top and bottom also by other constraints, but longitude between other constraints it
Difference (that is, overlook test specimen M when, test specimen M institute it is constrained between central angle) for 0 ° or 180 ° when also without peace
Fill semi-circular slidably track 52.The longitude between constraint in the case of other according to suffered by particle difference (that is, overlook particle
During sample, particle it is constrained between central angle), it is determined that needing to install the semi-circular slidably quantity of track 52 and position.
If test specimen M needs situation about simulating to be only one constraint under same longitude, corresponding with the longitude
Track above only install one clamping confining part 61, if test specimen M need simulate situation be same longitude under have
Multiple constraints, then need to install the clamping confining part 61 of respective amount on track corresponding with the longitude；Further according to examination
The latitude (that is, each constraint and angle of the particle equatorial plane) tested between the constraint suffered by sample M, by each track
The clamping confining part 61 in face is rotated to identical latitude (that is, each clamping confining part 61 and test specimen M equatorial planes
Angle).
Below so that the spherical particle sample of 5 ligancies is tested as an example, the concrete operations to crushing test device 10
Journey is described in detail.
A diameter of 60mm of spherical particle sample employed in experiment.As shown in figure 5, the constraint met required for particle
Condition is：Five obligatory points, No. 3 obligatory point longitudes of agreement are 0 ° (being also 360 °), and rotate counterclockwise direction viewed from above is
The augment direction of longitude；Be equator (latitude is 0 °) with the maximum gauge of plane-parallel circle, upward latitude for just (maximum+
90 °), it is downwards negative (minimum -90 °)；Then the corresponding longitude and latitude of No. 1 obligatory point is (0 ° of longitude ,+90 ° of latitude), No. 2 constraints
The corresponding longitude and latitude of point is (0 ° of longitude, -90 ° of latitude)；The corresponding longitude and latitude of No. 3 obligatory points is (0 ° of longitude, 0 ° of latitude)；No. 4
The corresponding longitude and latitude of obligatory point is (150 ° of longitude ,+60 ° of latitude)；The corresponding longitude and latitude of No. 5 obligatory points is (200 ° of longitude, latitude
+80°)。
According to constraints above condition, experiment specific operation process is：
First, as shown in fig. 6, being that granular materials is placed on above sample placement unit 32 by test specimen M, annular is installed solid
Orbit determination road 51 is simultaneously fixed.
Then, according to the particle confinement situation shown in Fig. 5, (laboratory sample particle is in addition to the constraint by top and bottom
Also constrained by other, but other constraint between longitudes difference also for 0 or 180 degree, it is necessary to install slidably track),
2 semi-circulars slidably track 52 (as shown in Figure 7) is installed.
Then, the restraint condition according to Fig. 5, installs 3 clamping confining parts 61, is allowed to be in contact with particle.This
In, the clamping confining part 61,4 and No. 5 obligatory points that No. 3 obligatory points are corresponded on annular trapped orbit 51 correspond to two respectively
The clamping confining part 61 of individual semi-circular slidably above track 52.Latitude between constraint according to suffered by particle is (that is, every
One constraint and the angle of the particle equatorial plane), the clamping confining part 61 above each track is rotated to corresponding latitude
After (that is, angle of each clamping confining part 61 and the particle equatorial plane), tightening nut is fixed in orbit (such as Fig. 8 institutes
Show).
Then, pressure unit 30 is controlled to apply displacement at the uniform velocity in top-loaded plate by test department 30, so as to be applied to particle
Plus the pressure of vertical direction, shown in the gradually distortion process of particle under pressure such as Fig. 9 (a) to (d)：Particle is initially adding
During load, stress is focused primarily upon near each obligatory point, such as particle when Fig. 9 (a), which is shown, not up to crushes critical value
State；With the progress of loading, the particle surface as shown in Fig. 9 (b) starts the crackle for occurring gradually being carried out by each constraint position,
With the continuation of loading, crackle constantly extends as shown in Fig. 9 (c), then, and partial crack is mutually communicated to be formed as shown in Fig. 9 (d)
Macrocrack, while localized crackses occurs in obligatory point near zone.The pressure and forcing unit of loading are collected by test department 30
31 class data of displacement data two, and carry out Treatment Analysis, obtain the contact force of particle as shown in Figure 10 and upper load plate with
Peak load in the graph of relation of load deflection, curve is the Particle Breakage threshold value under the constraints.
To sum up, by the crushing test device 10 of the present invention, the particle that can be obtained under Arbitrary 3 D space constraint state is broken
Broken threshold value, and then study the relation between the breaking strength and broken form and restrained condition of particle.
Above example is only the illustration done to technical solution of the present invention.Consideration space involved in the present invention
The crushing test device of restrained condition is not merely defined in structure described in the embodiment above, but with claim
Limited range is defined.Any modification or supplement that those skilled in the art of the invention are made on the basis of the embodiment
Or equivalence replacement, all in scope of the present invention.
Claims (5)
1. a kind of crushing test device for considering space constraint state, it is characterised in that including：
Peace turns supporting part, has：Upper installation unit, lower installation unit and positioned at the upper installation unit and the lower installation unit
Between support unit；
Pressure unit, on the installation supporting part, has：Driver element, the forcing unit being connected with the driver element
And for placing the sample placement unit of the test specimen, the forcing unit and the sample placement unit are located at described
It is arranged oppositely between upper installation unit and the lower installation unit and mutually, the driver element drives the forcing unit
Return is dynamic to apply pressure to the test specimen；
Longitude adjustment portion, has：The upper endless glide that is set respectively around the forcing unit and the sample placement unit and
Lower endless glide；
Orbit portion, has：Annular trapped orbit and at least one semi-circular slidably track, the annular trapped orbit surround institute
The setting of sample placement unit is stated, and upper and lower ends are separately fixed in the upper endless glide and the lower endless glide, institute
Stating semi-circular, slidably the upper sliding end of track and downslide moved end are removably attached to the upper endless glide and described respectively
In lower endless glide；
Constriction is clamped, with least one clamping confining part, each clamping confining part has a bare terminal end
With a restrained end, the bare terminal end is fixed on the annular trapped orbit or the semi-circular slidably on the track of track,
The restrained end direction simultaneously contacts the test specimen, and row constraint is entered to the test specimen；
Test department, is connected with the pressure unit, pressure and pressing that the collection pressure unit applies to the test specimen
Displacement in journey, and handled, corresponding test result is obtained,
Wherein, in the case of in the semi-circular, slidably track is loose, the upper sliding end and the downslide moved end can
Slided respectively along the upper endless glide and the lower endless glide so as to adjust the longitude of the semi-circular slidably track,
It is described clamping confining part bare terminal end it is loose in the case of, the bare terminal end can along the track slide from
And adjust the latitude of the clamping confining part.
2. the crushing test device according to claim 1 for considering space constraint state, it is characterised in that：
Wherein, the support unit is the support bar for being arranged on the upper installation unit and the lower installation unit surrounding.
3. the crushing test device according to claim 1 for considering space constraint state, it is characterised in that：
Wherein, the driver element uses hydraulic-driven, and the forcing unit is piston, the sample placement unit be with it is described
Piston it is relative to cylindrical shape bearing.
4. the crushing test device according to claim 1 for considering space constraint state, it is characterised in that：
Wherein, annular flange dish of the upper endless glide and the lower the endless glide all peripheries provided with a circle slide rail.
5. the crushing test device according to claim 1 for considering space constraint state, it is characterised in that：
Wherein, the top of the restrained end is cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408354.3A CN107044940B (en) | 2017-06-02 | 2017-06-02 | Consider the crushing test device of space constraint state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710408354.3A CN107044940B (en) | 2017-06-02 | 2017-06-02 | Consider the crushing test device of space constraint state |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107044940A true CN107044940A (en) | 2017-08-15 |
| CN107044940B CN107044940B (en) | 2019-04-09 |
Family
ID=59546786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710408354.3A Active CN107044940B (en) | 2017-06-02 | 2017-06-02 | Consider the crushing test device of space constraint state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107044940B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389454A (en) * | 2017-09-04 | 2017-11-24 | 桂林电子科技大学 | A kind of composite rupture test device suitable for various shapes size test specimen |
| CN112198050A (en) * | 2020-09-01 | 2021-01-08 | 清华大学 | Multi-axis loading testing machine |
| CN114216820A (en) * | 2021-12-13 | 2022-03-22 | 青岛理工大学 | Device and method for identifying internal force chain of three-dimensional particle system |
| CN115165569A (en) * | 2022-07-07 | 2022-10-11 | 中国科学院武汉岩土力学研究所 | Particle contact force measuring device of three-dimensional controllable multi-point constraint state |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101331A (en) * | 1985-04-01 | 1987-01-10 | 曼内斯曼公司 | The instrument of check pipe on tubing test pressure machine |
| CN203732360U (en) * | 2014-02-25 | 2014-07-23 | 聊城大学 | Clamping device for detection of football rebound rate of football field |
| CN104819893A (en) * | 2015-05-08 | 2015-08-05 | 沈阳工业大学 | Fixture of hemispherical concrete tensile test piece |
-
2017
- 2017-06-02 CN CN201710408354.3A patent/CN107044940B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85101331A (en) * | 1985-04-01 | 1987-01-10 | 曼内斯曼公司 | The instrument of check pipe on tubing test pressure machine |
| CN203732360U (en) * | 2014-02-25 | 2014-07-23 | 聊城大学 | Clamping device for detection of football rebound rate of football field |
| CN104819893A (en) * | 2015-05-08 | 2015-08-05 | 沈阳工业大学 | Fixture of hemispherical concrete tensile test piece |
Non-Patent Citations (2)
| Title |
|---|
| LIU HAI-MING ET AL.: "《Simulation on Particle Crushing of Tailings Material under High Pressure》", 《AIP CONFERENCE PROCEEDINGS》 * |
| SALAMI Y. ET AL.: "《The effects of the coordination on the fragmentation of a single grain》", 《INTERNATIONAL SYMPOSIUM ON GEOHAZARDS AND GEOMECHANICS (ISGG2015)》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389454A (en) * | 2017-09-04 | 2017-11-24 | 桂林电子科技大学 | A kind of composite rupture test device suitable for various shapes size test specimen |
| CN112198050A (en) * | 2020-09-01 | 2021-01-08 | 清华大学 | Multi-axis loading testing machine |
| CN112198050B (en) * | 2020-09-01 | 2022-07-12 | 清华大学 | Multi-axis loading testing machine |
| CN114216820A (en) * | 2021-12-13 | 2022-03-22 | 青岛理工大学 | Device and method for identifying internal force chain of three-dimensional particle system |
| CN114216820B (en) * | 2021-12-13 | 2024-03-19 | 青岛理工大学 | Device and method for identifying internal force chain of three-dimensional particle system |
| CN115165569A (en) * | 2022-07-07 | 2022-10-11 | 中国科学院武汉岩土力学研究所 | Particle contact force measuring device of three-dimensional controllable multi-point constraint state |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107044940B (en) | 2019-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107044940B (en) | Consider the crushing test device of space constraint state | |
| Freeman et al. | Measuring shear properties and normal stresses generated within a rotational shear cell for consolidated and non-consolidated powders | |
| Todisco et al. | Multiple contact compression tests on sand particles | |
| Ni et al. | Effect of particle properties on soil behavior: 3-D numerical modeling of shearbox tests | |
| Jiang et al. | Numerical modeling of rock mechanical behavior and fracture propagation by a new bond contact model | |
| Wiącek et al. | Influence of grain shape and intergranular friction on material behavior in uniaxial compression: Experimental and DEM modeling | |
| Lade et al. | Effects of principal stress directions on 3D failure conditions in cross-anisotropic sand | |
| CN207300737U (en) | The strain full curve measuring device of concrete in uniaxial compression chord | |
| Suescun-Florez et al. | Evolution of particle damage of sand during axial compression via arrested tests | |
| Dondi et al. | Numerical and experimental study of granular mixes for asphalts | |
| CN107402181B (en) | Cement particle strength testing device and method under different loads in a kind of hot environment | |
| CN105738069B (en) | Aeroelastic test and the mixing flow tunnel testing device of manometric test can be carried out simultaneously | |
| Wang et al. | Size effect on uniaxial compressive strength of single coal particle under different failure conditions | |
| Ouwerkerk | A micro-mechanical connection between the single-particle strength and the bulk strength of random packings of spherical particles | |
| CN107219131B (en) | A kind of asphalt horizontal shear performance test apparatus and method considering local axial compressive force | |
| CN103175742A (en) | Frozen soil dynamic load direct shear apparatus | |
| Liu | Breakage and deformation mechanisms of crushable granular materials | |
| CN109507039A (en) | Temperature Fretting fatigue experimental device and test method based on bending deformation | |
| Stünitz et al. | Grain size distribution and microstructures of experimentally sheared granitoid gouge at coseismic slip rates–Criteria to distinguish seismic and aseismic faults? | |
| Jiang et al. | Effect of heterogeneity in micro-structure and micro-strength on the discrepancies between direct and indirect tensile tests on brittle rock | |
| CN106198255B (en) | Soil body shearing test device and shearing test method under a kind of confining pressure state | |
| CN107271299A (en) | A kind of device for being used in SHPB diametral compression tests lay different sized samples | |
| Donovan et al. | Adaptation of a simple wedge test for the rapid determination of mode I fracture toughness and the assessment of relative fracture resistance | |
| CN105547994B (en) | A kind of method of testing of rock frictional test coefficient | |
| CN109855967A (en) | A kind of fractured coal and rock compacting-sound emission-resistivity experimental provision and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |