CN109115580A - A method of testing circle bamboo circumferential direction intensity - Google Patents
A method of testing circle bamboo circumferential direction intensity Download PDFInfo
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- CN109115580A CN109115580A CN201811264292.4A CN201811264292A CN109115580A CN 109115580 A CN109115580 A CN 109115580A CN 201811264292 A CN201811264292 A CN 201811264292A CN 109115580 A CN109115580 A CN 109115580A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/36—Embedding or analogous mounting of samples
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- 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
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- 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
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- 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
- G01N2203/0017—Tensile
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- 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)
- Sampling And Sample Adjustment (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A method of testing circle bamboo circumferential direction intensity, by preparing circle ring section, stick film, partition is installed, reserved pin duct, packing material is perfused, circle bamboo test specimen is installed, adjust floating holder, interspersed pin stick, the test to circle bamboo circumferential direction intensity is realized in tension test, circle ring section inner wall sticks film, packing material is avoided to impact with test result of the circle ring section inner wall bonding to circle bamboo circumferential direction intensity, packing material in circle ring section is reserved pin duct and is connect with floating holder, open pore steel plate at left and right sides of floating holder can be adjusted according to the length while inside outside movement of circle ring section, axial tension when ensure that test.Principle of the invention method is simple, under the premise of not damaging round bamboo, can rapidly and accurately test out round bamboo circumferential direction intensity, the open pore steel plate of the two sides of floating holder is adjustable, and the circle bamboo for being applicable in different length is tested, applied widely.
Description
Technical field
The present invention relates to a kind of test methods of bamboo wood material property, and in particular to a kind of side for testing circle bamboo circumferential direction intensity
Method belongs to Material Testing Technology field.
Background technique
For bamboo using with a long history, hollow wall is thin, has the mode of appearance of section and high, good toughness the excellent spy with intensity
Property, complex function applicability principle, load characteristics when use is that rapidoprint can not be copied, circle bamboo be in raw bamboo shape circle and
In have the bamboo wood stalk stem of section in vain, be made of two parts between ring and bamboo, outside tissue is fine and close, strong but pliable in texture, interior wall tissue is loose,
Quality is crisp soft, is seen in physical property with intensity height, good toughness, thermal conductivity heat-insulating performance are good, moisture absorption, heat absorption capacity is better than timber
Feature sees that smooth and beautiful appearance, especially environmentally protective advantage become one of the substitute of traditional building material brick, stone in appearance,
By the application in the research and engineering of domestic and international a large amount of scholars, the application of circle bamboo under construction can be used as simple bamboo prop,
Bamboo scaffolding, bamboo building etc., application in daily life can be used as round bamboo furniture, craftwork, musical instrument etc..
Meanwhile mechanical property problem also gradually causes the concern of people in the practical application of circle bamboo, domestic and foreign scholars for
The performances such as the lateral bending resistance of circle bamboo, longitudinal bending resistance and longitudinal resistance to compression are studied, the evaluation criterion of correlation circle bamboo mechanical property
Give the resistance to compression of round bamboo longitudinal direction, longitudinal shear resistance, the lateral mechanical properties such as bending resistance and tensile property test method, for the wide of circle bamboo
General application provides strong support, but due to circle bamboo architectural characteristic itself, will appear radial conquassation phenomenon in use,
Meanwhile circle bamboo side wall has certain hoop constraint effect for core filler material, loads energy about circle bamboo radial direction critical external compressive resistance
Power generallys use hoop rigidity in the world there are no unified evaluation method to characterize, but there is no unified effectively examinations at present
Proved recipe method tests the circumferential intensity of round bamboo, and the test method of some researchers has damage to circle bamboo itself, or is justifying bamboo
Somewhere will form stress concentration, cannot effectively and accurately achieve the desired results.
Summary of the invention
The object of the present invention is to provide a kind of method for testing circle bamboo circumferential direction intensity, principle and easy to operate is not being damaged
Under the premise of circle bamboo, round bamboo circumferential direction intensity can be rapidly and accurately tested out, the open pore steel plate of the two sides of floating holder can be adjusted freely
Section folding spacing, the circle bamboo test specimen for being applicable in different length is tested, applied widely, and the adjusting of floating holder can guarantee
The axle center extension test of circle bamboo test specimen, by the way that the indirect extension test of packing material, circle bamboo circumferential direction uniform force, film isolation is perfused
Packing material and circle ring section, avoid friction stress between the two, so that test result is more accurate and reliable.
The technical solution of the present invention is as follows: a kind of method for testing circle bamboo circumferential direction intensity, it is characterised in that by preparing circle bamboo
Segment sticks film, installation partition, reserved pin duct, perfusion packing material, installs circle bamboo test specimen, adjust floating holder, wear
Bayonet lock stick, carries out test of the tension test realization to circle bamboo circumferential direction intensity, and packing material is filled with except reserved pin duct
Outer upper and lower cavity enables pulling force to uniformly transfer to the inner wall of circle ring section, and circle ring section inner wall sticks film, keeps away
The inner wall for having exempted from packing material and circle ring section bonds, and the open pore steel plate at left and right sides of floating holder can be according to circle ring section
The length inwardly symmetrical mobile adjusting in outside, guarantees axial tension when circumferential strength test, the specific steps of which are as follows:
A. round ring section is prepared: according to the circle ring section for requiring to prepare certain length, diameter and thickness；
B. it sticks film: sticking 1 layer or more film in circle ring section inner wall, thin-film width is more than or equal to circle ring segment length
Degree, and roll with idler wheel or mold smooth, film and to justify ring section inner wall closely connected；
C., partition is installed: in circle ring section diametrical position and direction insertion partition, so that circle ring intersegmental part is averagely divided
At upper and lower two completely isolated cavitys, septum plate length is consistent with circle ring section internal diameter, and width is consistent with circle ring segment length,
Thickness can reasonably select；
D. pin duct is reserved: symmetrical each reserved pin hole in the upper and lower cavity of the circle ring section that partition separates
Road, pin orifice throat length is consistent with circle ring segment length, and through circle ring section；
E. packing material is perfused: in upper and lower empty intra-bladder instillation packing material, filling process is continually and steadily carried out, and keeps away
Exempt from packing material and pour into pin duct, the preparation of circle bamboo test specimen is completed after material consolidation to be filled；
F., circle bamboo test specimen is installed: the circle bamboo test specimen that preparation is completed is horizontally placed at upper and lower floating holder along its length
Two sides open pore steel plate between, wherein the upper and lower reserved pin duct of circle bamboo test specimen is pressed from both sides with upper and lower activity respectively
The hole aligning of the open pore steel plate of the two sides of tool；
G. it adjusts floating holder: according to the length adjustment floating holder of circle bamboo test specimen, passing through symmetrical adjusting activity folder simultaneously
The open pore steel plate of the two sides of tool makes the open pore steel plate spacing of two sides be greater than 3~20mm of length of circle bamboo test specimen, guarantees circle bamboo test specimen
Center line when installation is consistent with floating holder axis；
H. intert pin stick: two pin sticks are each passed through to the open pore steel plate and circle bamboo test specimen of upper and lower floating holder
Reserved pin duct so that circle bamboo test specimen both ends be separately fixed between upper and lower floating holder, complete circle bamboo test specimen ring
To the installment work before strength test；
I. tension test: test of the tension test realization of round bamboo test specimen to circle bamboo circumferential direction intensity is carried out.
The floating holder is made of the open pore steel plate and top plate of two sides, and channel suspending rail is provided on top plate, two sides
Open pore steel plate is connected with the channel suspending rail of top plate, can freely adjust folding spacing, and the open pore steel plate of two sides is that linkage is adjusted,
The distance moved in or out simultaneously is identical.
The pin duct is located at circle bamboo segment cross diametrically, and is symmetrically distributed in upper and lower cavity, is
Pvc pipe, steel pipe, PE plastic tube or PPR plastic tube stay set in advance, and diameter is more than or equal to the diameter of pin stick.
The film is one of polyethylene film, polypropylene film, polyvinyl chloride film or polyester film.
The partition completely separates upper and lower cavity, and the packing material in upper and lower cavity is separated from each other, partition
For one of plastic plate, cardboard, plank, bamboo clappers or metal plate.
The height of the packing material is consistent with circle ring section, full of the upper and lower sky in addition to reserved pin duct
Chamber, packing material are one of concrete, mortar and resin glue.
In the method for the present invention, the inner wall of round ring section is sticked on by film, partition will justify the inner cavity average mark of ring section
It is segmented into upper and lower cavity, to empty intra-bladder instillation packing material, respectively symmetrically reserves one in packing material in upper and lower cavity
Pin duct is prepared into round bamboo test specimen, and is horizontally placed between upper and lower floating holder along its length, simple using pin stick
Packing material be isolated with circle bamboo for fixation, film, is not subject to cohesive force between the two, when circumferential strength test, filling material
Material is filled with the upper and lower cavity in addition to reserved pin duct, and pulling force is uniformly transferred to the inner wall of circle ring section,
Packing material is contacted by film with circle bamboo, circumferential uniform force, and stress is avoided to concentrate breakoff phenomenon, test method operation letter
Single, test result is accurate and reliable.
Advantage of the present invention is significant, has the advantages that
(1) the method for the present invention test material preparation is simple, easy to operate, by capacity between packing material, does not damage round bamboo wood
Material itself, avoids the weakening to circle bamboo wood material itself from causing the deviation to test result, and test result is accurate.
(2) separate perfusion packing material in circle ring section, passed through by pin stick and reserve pin duct in packing material
Carry out forces testing, packing material with the film of circle bamboo inner wall is closely knit contacts, guaranteeing that packing material and round bamboo do not hold when test
In the case where by friction cohesive force, circle bamboo circumferential direction uniform force is different from conventional method, avoids stress and concentrate destruction.
(3) the freely adjustable folding spacing of the open pore steel plate of the two sides of floating holder, is applicable to the circle bamboo of different length
The test of test specimen circumferential direction intensity, and can guarantee that circle bamboo test specimen is perpendicular to circumferential axial tension when test, so that test result is more
Add reliable.
Detailed description of the invention:
Fig. 1 is a kind of method flow diagram for testing circle bamboo circumferential direction intensity；
Fig. 2 is a kind of square law device stereoscopic schematic diagram for testing circle bamboo circumferential direction intensity；
Fig. 3 is the stereoscopic schematic diagram for preparing round ring section；
Fig. 4 is the stereoscopic schematic diagram for sticking film；
Fig. 5 is the stereoscopic schematic diagram for installing partition；
Fig. 6 is the stereoscopic schematic diagram in reserved pin duct；
Fig. 7 is the stereoscopic schematic diagram that packing material is perfused；
Fig. 8 is the stereoscopic schematic diagram for installing circle bamboo test specimen；
Fig. 9 is the stereoscopic schematic diagram for adjusting floating holder；
Figure 10 is the stereoscopic schematic diagram of interspersed pin stick；
In all the appended drawings, 1 is circle ring section；11 be cavity；2 be film；3 be partition；4 be pin duct；5 be filling
Material；6 be floating holder；61 be open pore steel plate；62 be top plate；64 be pin stick；100 be circle bamboo test specimen.
Specific embodiment:
For a clearer understanding of the technical characteristics, objects and effects of the present invention, this hair of Detailed description of the invention is now compareed
Bright specific embodiment.The present invention provides a kind of method for testing circle bamboo circumferential direction intensity, it is characterised in that by preparing circle bamboo
Segment 1 sticks film 2, installation partition 3, reserved pin duct 4, perfusion packing material 5, installs circle bamboo test specimen 100, adjusts and live
Dynamic fixture 6, interspersed pin stick 64, carry out test of the tension test realization to circle bamboo circumferential direction intensity, and packing material 5 is filled with except pre-
Upper and lower cavity 11 outside the pin duct 4 stayed enables pulling force to uniformly transfer to the inner wall of circle ring section 1, circle ring section
1 inner wall sticks film 2, and the inner wall for avoiding packing material and circle ring section 1 bonds, the aperture steel of 6 left and right sides of floating holder
Plate 61 can guarantee axial tension when circumferential strength test according to the length inwardly symmetrical mobile adjusting in outside of round ring section 1,
The specific steps of which are as follows:
A. it prepares round ring section: preparing the circle ring section 1 of certain length, diameter and thickness according to Specification Design requirement；
B. it sticks film: sticking 1 layer or more film 2 in circle 1 inner wall of ring section, 2 width of film is greater than circle 1 length of ring section
5mm, and rolled with idler wheel or mold smooth, film 2 and circle 1 inner wall of ring section are closely connected；
C., partition is installed: choosing the partition 3 with circle 1 internal diameter equal length of ring section, 3 width of partition and circle ring section 1 are long
Degree is consistent, and thickness can reasonably select, and is inserted into partition 3 in circle 1 diametrical position of ring section and direction, so that average segmentation inside circle bamboo
At upper and lower two completely isolated cavitys 11；
D. pin duct is reserved: symmetrical each reserved pin in the upper and lower cavity 11 of the circle ring section 1 that partition 3 separates
Keyhole road 4,4 length of pin duct is consistent with circle 1 length of ring section, and through circle ring section 1；
E. packing material is perfused: packing material 5 being perfused in upper and lower cavity 11, filling process continually and steadily carries out, and protects
Demonstrate,prove cavity 11 in closely knit perfusion packing material 5, avoid packing material 5 and justify 1 inner wall membrane 2 of ring section between there are bubbles, and
Packing material 5 is avoided to pour into pin duct 4, material 5 to be filled completes the preparation of circle bamboo test specimen 100 after consolidating；
F., circle bamboo test specimen is installed: the circle bamboo test specimen 100 that preparation is completed being horizontally placed at upper and lower activity along its length and is pressed from both sides
Between the open pore steel plate 61 of the two sides of tool 6, wherein the upper and lower reserved pin duct 4 of round bamboo test specimen 100 is respectively and above and below
Floating holder 6 two sides open pore steel plate 61 hole aligning；
G. it adjusts floating holder: according to the length adjustment floating holder 6 of circle bamboo test specimen 100, being pressed from both sides by symmetrically adjusting activity
The open pore steel plate 61 of the two sides of tool 6 makes 61 spacing of open pore steel plate of two sides be greater than 3~20mm of length of circle bamboo test specimen 100, guarantees
Center line when circle bamboo test specimen 100 is installed is consistent with 6 axis of floating holder；
H. intert pin stick: two pin sticks 64 are each passed through to open pore steel plate 61 and the circle bamboo of upper and lower floating holder 6
It is completed so that circle 100 both ends of bamboo test specimen are separately fixed between upper and lower floating holder 6 in the reserved pin duct 4 of test specimen 100
Installment work before the circumferential strength test of circle bamboo test specimen 100；
I. tension test can tension test: be carried out after completing remaining preparation according to design requirement.
The floating holder 6 is made of the open pore steel plate 61 and top plate 62 of two sides, is provided with channel suspending rail on top plate 61,
The open pore steel plate 61 of two sides is connected with the channel suspending rail of top plate 62, can freely adjust folding spacing, and the open pore steel plate of two sides
61 are adjusted for linkage, while the distance moved in or out is identical.
The pin duct 4 is located at circle 1 cross section of ring section diametrically, and is symmetrically distributed in upper and lower cavity 11
It is interior, it stays set in advance for pvc pipe, steel pipe, PE plastic tube or PPR plastic tube, diameter is more than or equal to the diameter of pin stick 64.
The film 2 is one of polyethylene film, polypropylene film, polyvinyl chloride film or polyester film.
The partition 3 completely separates upper and lower cavity 11, and the packing material 5 in upper and lower cavity 11 mutually divides
From partition 3 is one of plastic plate, cardboard, plank, bamboo clappers or metal plate.
The height of the packing material 5 and circle ring section 1 are consistent, full of upper and lower in addition to reserved pin duct 4
Cavity 11, packing material 5 are one of concrete, mortar and resin glue.
Claims (6)
1. a kind of method for testing circle bamboo circumferential direction intensity, it is characterised in that by preparing circle ring section (1), sticking film (2), peace
Fill partition (3), reserved pin duct (4), perfusion packing material (5), install circle bamboo test specimen (100), adjust floating holder (6),
Interspersed pin stick (64) carry out tension test and realize test to circle bamboo circumferential direction intensity, and packing material (5) is filled with except reserved
The upper and lower cavity (11) of pin duct (4) outside enables pulling force to uniformly transfer to the inner wall of circle ring section (1), circle ring
Section (1) inner wall sticks film (2), and the inner wall for avoiding packing material and circle ring section (1) bonds, floating holder (6) left and right two
The open pore steel plate (61) of side can be adjusted according to the symmetrical movement in the inside outside of length of circle ring section (1), and the circumferential intensity of guarantee is surveyed
Axial tension when examination, the specific steps of which are as follows:
A. round ring section is prepared: according to the circle ring section (1) for requiring to prepare certain length, diameter and thickness；
B. it sticks film: sticking 1 layer or more film (2) in circle ring section (1) inner wall, film (2) width is more than or equal to circle ring
Segment length, and rolled with idler wheel or mold smooth, film (2) and circle ring section (1) inner wall are closely connected；
C., partition is installed: in circle ring section (1) diametrical position and direction insertion partition (3), so that average inside circle ring section (1)
Upper and lower two completely isolated cavitys (11) are divided into, partition (3) length is consistent with circle ring section (1) internal diameter, width and circle bamboo
Segment (1) length is consistent, and thickness can reasonably select；
D. pin duct is reserved: symmetrical each one reserved in the upper and lower cavity (11) of the circle ring section (1) that partition (3) separates
Pin duct (4), pin duct (4) length is consistent with circle ring section (1) length, and through circle ring section (1)；
E. packing material is perfused: packing material (5) are perfused in upper and lower cavity (11), filling process continually and steadily carries out, and
It avoids packing material (5) from pouring into pin duct (4), the preparation of circle bamboo test specimen (100) is completed after material (5) consolidation to be filled；
F., circle bamboo test specimen is installed: the circle bamboo test specimen (100) that preparation is completed is horizontally placed at upper and lower floating holder along its length
(6) between the open pore steel plate (61) of two sides, wherein the upper and lower reserved pin duct (4) of circle bamboo test specimen (100) is respectively
With the hole aligning of the open pore steel plate (61) of the two sides of upper and lower floating holder (6)；
G. it adjusts floating holder: according to the length adjustment floating holder (6) of circle bamboo test specimen (100), being lived by symmetrical adjust simultaneously
The open pore steel plate (61) of the two sides of dynamic fixture (6) makes open pore steel plate (61) spacing of two sides be greater than the length of circle bamboo test specimen (100)
3~20mm, center line when guaranteeing circle bamboo test specimen (100) installation are consistent with the axis of floating holder (6)；
H. intert pin stick: two pin sticks (64) are each passed through to the open pore steel plate (61) and circle of upper and lower floating holder (6)
The reserved pin duct (4) of bamboo test specimen (100), so that the both ends of circle bamboo test specimen (100) are separately fixed at upper and lower floating holder
(6) installment work between, before completing the circumferential strength test of circle bamboo test specimen (100)；
I. tension test: test of the tension test realization of round bamboo test specimen (100) to circle bamboo circumferential direction intensity is carried out.
2. a kind of method for testing circle bamboo circumferential direction intensity as described in claim 1, it is characterised in that the floating holder (6)
It is made of the open pore steel plate (61) and top plate (62) of two sides, channel suspending rail, the open pore steel plate of two sides is provided on top plate (61)
(61) it is connected with the channel suspending rail of top plate (62), can freely adjust folding spacing, and the open pore steel plate (61) of two sides is linkage
It adjusts, while the distance moved in or out is identical.
3. a kind of method for testing circle bamboo circumferential direction intensity as described in claim 1, it is characterised in that the pin duct (4)
Diametrically positioned at circle ring section (1) cross section, it and is symmetrically distributed in upper and lower cavity (11), is pvc pipe, steel pipe, PE modeling
Expects pipe or PPR plastic tube stay set in advance, and diameter is more than or equal to the diameter of pin stick (64).
4. a kind of method for testing circle bamboo circumferential direction intensity as described in claim 1, it is characterised in that the film (2) is poly-
One of vinyl film, polypropylene film, polyvinyl chloride film or polyester film.
5. a kind of method for testing circle bamboo circumferential direction intensity as described in claim 1, it is characterised in that the partition (3) is complete
Upper and lower cavity (11) is separated, the packing material (5) in upper and lower cavity (11) is separated from each other, partition (3) be plastic plate,
One of cardboard, plank, bamboo clappers or metal plate.
6. a kind of method for testing circle bamboo circumferential direction intensity as described in claim 1, it is characterised in that the packing material (5)
Height and circle ring section (1) unanimously, full of except reserve pin duct (4) in addition to upper and lower cavity (11), packing material
It (5) is one of concrete, mortar and resin glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264292.4A CN109115580B (en) | 2018-10-23 | 2018-10-23 | Method for testing circumferential strength of round bamboo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811264292.4A CN109115580B (en) | 2018-10-23 | 2018-10-23 | Method for testing circumferential strength of round bamboo |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109115580A true CN109115580A (en) | 2019-01-01 |
| CN109115580B CN109115580B (en) | 2023-04-07 |
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ID=64855889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811264292.4A Active CN109115580B (en) | 2018-10-23 | 2018-10-23 | Method for testing circumferential strength of round bamboo |
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| CN (1) | CN109115580B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160871A (en) * | 2019-06-12 | 2019-08-23 | 辽宁科技大学 | A kind of corn stubble fibrous root radial direction tensile strength measuring device |
| CN114136881A (en) * | 2021-11-29 | 2022-03-04 | 胜科纳米(苏州)股份有限公司 | Method for testing metal packaging bonding force of capacitive square fingerprint sensor |
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| CN110160871A (en) * | 2019-06-12 | 2019-08-23 | 辽宁科技大学 | A kind of corn stubble fibrous root radial direction tensile strength measuring device |
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| CN114136881A (en) * | 2021-11-29 | 2022-03-04 | 胜科纳米(苏州)股份有限公司 | Method for testing metal packaging bonding force of capacitive square fingerprint sensor |
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| Publication number | Publication date |
|---|---|
| CN109115580B (en) | 2023-04-07 |
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