SU983510A1 - Material brittleness determination method - Google Patents
Material brittleness determination method Download PDFInfo
- Publication number
- SU983510A1 SU983510A1 SU792854969A SU2854969A SU983510A1 SU 983510 A1 SU983510 A1 SU 983510A1 SU 792854969 A SU792854969 A SU 792854969A SU 2854969 A SU2854969 A SU 2854969A SU 983510 A1 SU983510 A1 SU 983510A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- crack
- moment
- indenter
- occurrence
- determination method
- Prior art date
Links
Description
(54) СПОСОБ ОПРЕДЕЛЕНИЯ ХРУПКОСТИ МАТЕРИАЛОВ(54) METHOD FOR DETERMINING THE BRENCH OF MATERIALS
Изобретение относитс к испыта-ни м материалов на прочность, а именно, дл определени хрупкости материалов.The invention relates to the testing of materials for strength, namely, to determine the brittleness of materials.
Известен способ определени хрупкости материалов, заключающийс в том, что непрерывно внедр ют индентор в испытуемый материал, довод т последний до разрушени и регистрируют в момент по влени трещины нагрузку , по которой суд т о хрупкости . Момент по влени трещины регистрируют визуально 1.A known method for determining the brittleness of materials is that they continuously inject the indenter into the material under test, bring the latter to fracture and record the load at which the fragility is judged at the moment of the appearance of the crack. The moment of occurrence of a crack is recorded visually 1.
Однако визуальна регистраци момента по влени трещины вносит большие погрешности.However, the visual registration of the moment of the appearance of a crack introduces large errors.
Цель изобретени - повышение точности способа.The purpose of the invention is to improve the accuracy of the method.
Цель достигаетс тем, что согласно способу определени хрупкости материалов , заключающемус в том, что непрерывно внедр ют индентор в испытуемый материал, довод т последний до разрушени и регистрируют в момент по влени трещины нагрузку, по которой суд т о хрупкости, измер ют амплитуду сигнала акустической эмиссии при непрерывном внедрении индентора , а о моменте по влени трещиныThe goal is achieved in that, according to the method for determining the fragility of materials, which consists in continuously inserting the indenter into the material under test, bringing the latter to fracture and registering at the moment of the occurrence of a crack, the load on which it is judged to be brittle, measure the amplitude of the acoustic signal emission with the continuous introduction of the indenter, and about the moment of the appearance of a crack
суд т по превышению среднего уровн амплитуды не менее, чем в 5 раз.judgment of exceeding the average amplitude level not less than 5 times.
Способ реализуетс следукацим образом .The method is implemented in the following way.
Непрерывно внедр ют индентор в испытуемый материал до разрушени последнего, записывают диаграмму вдавливани , одновременно измер ют Continuously insert the indenter into the test material until the latter is destroyed, record the indentation diagram, simultaneously measure
10 амплитуду, интенсивность и сумму акустической эмиссии, поступающие в анализирующий блок, по сигналу акустической эмиссии, превышающему не менее чем в 5 раз средний уровень амплитуды, фиксируют момент по вле15 ни трещины и регистрируют в этот момент нагрузку разрушени , по которой суд т о хрупкости материала.10 amplitude, intensity and sum of acoustic emission, entering the analyzing unit, at an acoustic emission signal exceeding not less than 5 times the average amplitude level, fix the moment along the left side of the crack and record the fracture load at which the fragility is judged. material.
Изобретение позвол ет повысить точность J змepeни .The invention makes it possible to improve the accuracy of J serie.
2020
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792854969A SU983510A1 (en) | 1979-12-19 | 1979-12-19 | Material brittleness determination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792854969A SU983510A1 (en) | 1979-12-19 | 1979-12-19 | Material brittleness determination method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU983510A1 true SU983510A1 (en) | 1982-12-23 |
Family
ID=20865849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792854969A SU983510A1 (en) | 1979-12-19 | 1979-12-19 | Material brittleness determination method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU983510A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558104A (en) * | 2013-11-13 | 2014-02-05 | 长江师范学院 | Coupling-bionics-based food crispness tester and testing method |
-
1979
- 1979-12-19 SU SU792854969A patent/SU983510A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558104A (en) * | 2013-11-13 | 2014-02-05 | 长江师范学院 | Coupling-bionics-based food crispness tester and testing method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1994016313A3 (en) | Method and device for assessing the suitability of biopolymers | |
| SU983510A1 (en) | Material brittleness determination method | |
| ATE103990T1 (en) | METHOD OF DIAGNOSIS OF PERIODONTAL DISEASE BY DETECTING ALANINAMINOTRANSFERASE. | |
| Dally et al. | Measuring the stress intensity factor for propagating cracks with strain gages | |
| SU873108A1 (en) | Method of crack set-off moment determination | |
| Eslyn | Utility pole decay—Part I: Appraisal of a device for nondestructive detection of decay | |
| SU894433A1 (en) | Method of material veild strength flow determination | |
| SU834450A1 (en) | Material surface hardening degree determination method | |
| Viehrig et al. | Measurement of dynamic elastic-plastic fracture toughness parameters using various methods | |
| SU1080064A1 (en) | Method of determination of ferromagnetic material strength | |
| SU896547A1 (en) | Method of determining properties of materials | |
| SU962750A1 (en) | Method of measuring depth of corrosion or other destruction of surface at specimen testing | |
| Carpenter et al. | An investigation of the acoustic emission generated during the deformation and fracture of premium grade 4340 steel | |
| SU896491A1 (en) | Method of determination of material specimen crack resistance | |
| SU1163199A1 (en) | Method of determining longevity of member | |
| SU920443A1 (en) | Method of evaluating composite material resistance to crack propagation | |
| SU794490A1 (en) | Article quality control method | |
| SU832462A1 (en) | Method of analysis of materials with aid of acoustic emission | |
| SU739398A1 (en) | Method of determining the degree of contamination of metal with nonmetal inclusions | |
| SU634171A1 (en) | Method of evaluating material fracture ductility | |
| SU1026036A1 (en) | Structure material residual resource determination method | |
| SU728028A1 (en) | Specimen for determining fracture strength at eccentric tension | |
| Pawlowski et al. | Measurement of stress using Barkhausen effect(in NDT) | |
| JPS6488336A (en) | Indentation hardness testing method | |
| SU1118911A1 (en) | Method of determining rate of material deformation |