CN205426652U - Three -dimensional compound fracture test fixture - Google Patents
Three -dimensional compound fracture test fixture Download PDFInfo
- Publication number
- CN205426652U CN205426652U CN201521045691.3U CN201521045691U CN205426652U CN 205426652 U CN205426652 U CN 205426652U CN 201521045691 U CN201521045691 U CN 201521045691U CN 205426652 U CN205426652 U CN 205426652U
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- test fixture
- chassis
- type arc
- arc plate
- sample
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Abstract
The utility model relates to a three -dimensional compound fracture test fixture, including the C type arc board of a pair of relative up -down setting be equipped with on the C type arc board through positioning bolt with its fixed circular arc spout to the testing machine on the inner wall of C type arc board still respectively relative up -down be fixed with the chassis, the rotatable three -jaw chuck that can fix the sample that is equipped with on the chassis, this sample is for being equipped with the cylindric of fracture line. The beneficial effects of the utility model are that: the problem of the angle adjustment of jumping in the breaking test is solved, enlarge the scope of acquireing of tentation data, provide the test fixture of a reliable practicality for truly reflecting compound fracture law.
Description
Technical field
This utility model relates to Materials Fracture research apparatus field, is specifically related to a kind of mixed mode cracking test fixture.
Background technology
In engineer operation; some Materials Fracture accidents would generally cause huge property loss, has a strong impact on personal safety, therefore in the urgent need to a series of fracture criterions being easy to engineer applied; and during carrying out fracture prediction theoretical research, need a kind of reliable and practical test fixture badly.
Existing destructive test fixture, maybe can only carry out unitary type crackle loading, maybe can only be fixed several angle adjustment, and these strongly limit the acquisition scope of test data, it is impossible to meets the test requirements document of fracture theory research.
Utility model content
In sum, in order to overcome the deficiencies in the prior art, technical problem to be solved in the utility model is to provide a kind of mixed mode cracking test fixture, it is achieved I/II/III any Mixed Mode Fracture test, and angle is stepless adjustable.
The technical scheme that this utility model solves above-mentioned technical problem is as follows: a kind of mixed mode cracking test fixture, it is oppositely arranged including about a pair and coplanar c-type arc plate, described c-type arc plate is provided with the arc chute being fixed on testing machine by bolt, the inwall of described c-type arc plate has been relatively fixed chassis the most up and down；
Rotating on described chassis being provided with the scroll chuck that can fix sample, this sample is be provided with failure crack cylindric.
Further, described chassis is provided with T-slot, described T-slot extends internally from the periphery on described chassis, and the tail end of described T-slot is arc-shaped, described scroll chuck is provided with the boss rotatably snapped within described T-slot, described boss includes the cylindrical bars less with described T-slot diameter and the cylindrical piece being relatively large in diameter, and described scroll chuck connects this cylindrical piece being relatively large in diameter by this less cylindrical bars.
Further, on described c-type arc plate the position of corresponding described arc chute be provided with reflection experiment machine power load and sample axially between the angle index I of angle.
Further, described chassis is provided with the angle index II of angle between median plane and the section normal direction of described failure crack reflecting described c-type arc plate.
Further, the central angle of described arc chute is 90 °.
Further, described chassis is welded on the inwall of described c-type arc plate.
The beneficial effects of the utility model are: solve the problem that in destructive test, angle jump adjusts, expand the acquisition scope of test data, provide a kind of reliable and practical test fixture for true reflection Mixed Mode Fracture rule.And this test fixture simple in construction, it is easy to manufacture, operate easy, mounting or dismounting sample is convenient.Testing machine may utilize original stretching-machine to carry out Mixed Mode Fracture test, it is to avoid design specialized testing machine, thus is greatly saved experimentation cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of c-type arc plate；
Fig. 2 is the structural representation on scale chassis；
Fig. 3 is the structural representation of scroll chuck；
Fig. 4 is the schematic three dimensional views at the another one visual angle of Fig. 3；
Fig. 5 is the structural representation of sample；
Fig. 6 is the schematic diagram that sample is tested by this utility model；
Fig. 7 is the experimental viewpoint schematic diagram (wherein c-type arc plate saves arc chute) after this utility model is arranged on testing machine.
In accompanying drawing, the list of parts representated by each label is as follows:
1, c-type arc plate, 11, arc chute, 12, angle index I, 2, chassis, 21, T-slot, 22, angle index II, 3, scroll chuck, 31, boss, 4, sample, 41, crackle, 42, section.
Detailed description of the invention
Being described principle of the present utility model and feature below in conjunction with accompanying drawing, example is served only for explaining this utility model, is not intended to limit scope of the present utility model.
As shown in figures 1 to 6, a kind of mixed mode cracking test fixture, it is oppositely arranged including about a pair and coplanar c-type arc plate 1, described c-type arc plate 1 is provided with the arc chute 11 being fixed on testing machine by bolt, the central angle of described arc chute 11 is 90 °, on described c-type arc plate 1 position of corresponding described arc chute 11 be provided with reflection experiment machine power load and sample 4 axially between the angle index I 12 of angle.The inwall of described c-type arc plate 1 is relatively fixed chassis 2 the most up and down, preferably: described chassis 2 is welded on the inwall of described c-type arc plate 1.
The rotating scroll chuck 3 that can fix sample 4 that is provided with on described chassis 2, described chassis 2 is provided with the angle index II 22 of angle between median plane and section 42 normal direction of described failure crack 41 reflecting described c-type arc plate 1.This sample 4 is for be provided with the cylindric of failure crack 41.Scroll chuck 3 is accomplished by chassis 2 rotatably: be provided with T-slot on described chassis 2, described T-slot extends internally from the periphery on described chassis 2, and the tail end of described T-slot is arc-shaped, described scroll chuck 3 is provided with the boss rotatably snapped within described T-slot, described boss includes the cylindrical bars less with described T-slot diameter and the cylindrical piece being relatively large in diameter, and described scroll chuck 3 connects this cylindrical piece being relatively large in diameter by this less cylindrical bars.In T-slot, the rotation realizing scroll chuck 3 on chassis 2 is rotated by cylindrical piece.
When testing, by bolt, the diverse location of arc chute 11 on c-type arc plate 1 is fixed to testing machine, regulation experiment machine power load and sample 4 axially between the angle of angle, i.e. the angle of α in Fig. 7, α can be adjusted to the angle needed by viewing angle scale I 12.Adjust the angle of angle between the median plane of c-type arc plate 1 and section 42 normal direction of failure crack, the i.e. angle of β in Fig. 7 in conjunction with rotating chassis 2, β can be adjusted to by viewing angle scale II 22 angle needed.Achieve that I/II/III any Mixed Mode Fracture test loads by the adjustment of above-mentioned α Yu β.When α=0 °, sample 4 is stretched load, loads for I type；When α=90 ° and β=0 °, sample 4, by plane shear load, loads for II type；When α=90 ° and β=90 °, sample 4, by Antiplane Shear load, loads for type III；When β=0 ° and 0 °, < when α < 90 °, sample 4 is the compound loading of I+II；When β=90 ° and 0 °, < when α < 90 °, sample 4 is the compound loading of I+III；When α=90 ° and 0 °, < when β < 90 °, sample 4 is the compound loading of II+III；When 0 °, < α < 90 ° and 0 ° < when β < 90 °, sample 4 is the compound loading of I+II+III.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (6)
1. a mixed mode cracking test fixture, it is characterized in that, it is oppositely arranged including about a pair and coplanar c-type arc plate (1), described c-type arc plate (1) is provided with the arc chute (11) being fixed on testing machine by bolt, the inwall of described c-type arc plate (1) has been relatively fixed chassis (2) the most up and down；
In described chassis (2), the most rotating upper being provided with can fix the scroll chuck (3) of sample (4), and this sample (4) is for be provided with the cylindric of failure crack (41).
Mixed mode cracking test fixture the most according to claim 1, it is characterized in that, described chassis (2) is provided with T-slot, described T-slot extends internally from the periphery of described chassis (2), and the tail end of described T-slot is arc-shaped, described scroll chuck (3) is provided with the boss rotatably snapped within described T-slot, described boss includes that the cylindrical bars that the diameter corresponding with described T-slot is less and the cylindrical piece being relatively large in diameter, described scroll chuck (3) connect this cylindrical piece being relatively large in diameter by this less cylindrical bars.
Mixed mode cracking test fixture the most according to claim 1, it is characterized in that, the position of the upper corresponding described arc chute (11) of described c-type arc plate (1) is provided with reflection experiment machine power load and sample (4) angle index I (12) of angle between axial.
Mixed mode cracking test fixture the most according to claim 1, it is characterized in that, described chassis (2) are provided with the angle index II (22) of angle between median plane and section (42) normal direction of described failure crack (41) reflecting described c-type arc plate (1).
Mixed mode cracking test fixture the most according to claim 1, it is characterised in that the central angle of described arc chute (11) is 90 °.
6. according to the arbitrary described mixed mode cracking test fixture of claim 1 to 5, it is characterised in that described chassis (2) are welded on the inwall of described c-type arc plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045691.3U CN205426652U (en) | 2015-12-15 | 2015-12-15 | Three -dimensional compound fracture test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521045691.3U CN205426652U (en) | 2015-12-15 | 2015-12-15 | Three -dimensional compound fracture test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205426652U true CN205426652U (en) | 2016-08-03 |
Family
ID=56516207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521045691.3U Withdrawn - After Issue CN205426652U (en) | 2015-12-15 | 2015-12-15 | Three -dimensional compound fracture test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205426652U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403453A (en) * | 2015-12-15 | 2016-03-16 | 桂林电子科技大学 | Three-dimensional composite type fracture test fixture |
| CN107894364A (en) * | 2018-01-17 | 2018-04-10 | 兰州理工大学 | A kind of scanning electron microscope home position stretches servicing unit |
| CN108152147A (en) * | 2018-03-16 | 2018-06-12 | 华北理工大学 | Rock sample torsional fracture breaking test device and simulation rock sample torsional fracture destruction methods |
| CN112116861A (en) * | 2020-11-23 | 2020-12-22 | 西南交通大学 | Device and method for simulating tunnel dynamic response under fault dislocation |
-
2015
- 2015-12-15 CN CN201521045691.3U patent/CN205426652U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105403453A (en) * | 2015-12-15 | 2016-03-16 | 桂林电子科技大学 | Three-dimensional composite type fracture test fixture |
| CN105403453B (en) * | 2015-12-15 | 2019-05-07 | 桂林电子科技大学 | A kind of mixed mode cracking test fixture |
| CN107894364A (en) * | 2018-01-17 | 2018-04-10 | 兰州理工大学 | A kind of scanning electron microscope home position stretches servicing unit |
| CN108152147A (en) * | 2018-03-16 | 2018-06-12 | 华北理工大学 | Rock sample torsional fracture breaking test device and simulation rock sample torsional fracture destruction methods |
| CN108152147B (en) * | 2018-03-16 | 2023-09-05 | 华北理工大学 | Rock sample torsion crack damage experimental device and simulated rock sample torsion crack damage method |
| CN112116861A (en) * | 2020-11-23 | 2020-12-22 | 西南交通大学 | Device and method for simulating tunnel dynamic response under fault dislocation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160803 Effective date of abandoning: 20190507 |
|
| AV01 | Patent right actively abandoned |