SU1413477A1 - Method of forming cracks in side-nicked planar specimen - Google Patents
Method of forming cracks in side-nicked planar specimen Download PDFInfo
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- SU1413477A1 SU1413477A1 SU874196638A SU4196638A SU1413477A1 SU 1413477 A1 SU1413477 A1 SU 1413477A1 SU 874196638 A SU874196638 A SU 874196638A SU 4196638 A SU4196638 A SU 4196638A SU 1413477 A1 SU1413477 A1 SU 1413477A1
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- notch
- specimen
- condition
- chosen
- cracks
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Изобретение относитс к испытательной технике и может быть использовано дл определени стойкости тон- качистовых конструкций против распространени трещин. Цель изобретени - обеспечение образовани трещин в листовых образцах, склонных к депланаири Используют плоский листовой образец 1 г боковым надрезом 2о По линии надреза 2 на заданном рассто нии L от его вершины образуют зону сжати статическим приложением перпендикул рно поверхности образца 1 локальных самоуравновешенных усилий Р, которые прикладывают через цилиндрические накладки 5,6 диаметром D и сферический инден- тор 7. Рассто ние L от вершины 3 надреза 2 до центра зоны сн ти выбира- HJT из услови L 1 + D/2, где 1 - длина трешлны в момент ее остановки. Величину УСИЛИЙ Р выбирают из услови , чтобы величина напр жений 6 сжати удовлетвор ла условию 6 (0,5-0,7)6 . где 6gp- предел прочности материала испытуемого образца при сжатии. Нагружают образец 1 путем расклинивани надреза 2 через клин 8 усилием Q до образовани , развити и остановки треш51ны 9 у границы зоны сжати . 2 ил. СЛThe invention relates to a testing technique and can be used to determine the resistance of thin structures to crack propagation. The purpose of the invention is to ensure the formation of cracks in sheet specimens prone to deplaniari. Use a flat sheet specimen of 1 g lateral incision of 2o. they are applied through cylindrical linings 5,6 with diameter D and spherical indenter 7. The distance L from the top 3 of notch 2 to the center of the zone of removal is chosen - HJT from the condition L 1 + D / 2, where 1 is the length of the moment in nt her stop. The magnitude of the EFFORT P is chosen from the condition that the magnitude of the compressive stresses 6 satisfy condition 6 (0.5-0.7) 6. where 6gp is the ultimate strength of the material of the test specimen under compression. Sample 1 is loaded by ripping the notch 2 through the wedge 8 with force Q prior to the formation, development and stopping of the trap 9 on the border of the compression zone. 2 Il. SL
Description
фие.2FI.2
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874196638A SU1413477A1 (en) | 1987-02-18 | 1987-02-18 | Method of forming cracks in side-nicked planar specimen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874196638A SU1413477A1 (en) | 1987-02-18 | 1987-02-18 | Method of forming cracks in side-nicked planar specimen |
Publications (1)
Publication Number | Publication Date |
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SU1413477A1 true SU1413477A1 (en) | 1988-07-30 |
Family
ID=21286398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874196638A SU1413477A1 (en) | 1987-02-18 | 1987-02-18 | Method of forming cracks in side-nicked planar specimen |
Country Status (1)
Country | Link |
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SU (1) | SU1413477A1 (en) |
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1987
- 1987-02-18 SU SU874196638A patent/SU1413477A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР № 1232992, кл. G 01 N-3/08, 1985. * |
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