SU932366A1 - Plane specimen for investigating effect of stress concentration in cyclic loading - Google Patents
Plane specimen for investigating effect of stress concentration in cyclic loading Download PDFInfo
- Publication number
- SU932366A1 SU932366A1 SU802998725A SU2998725A SU932366A1 SU 932366 A1 SU932366 A1 SU 932366A1 SU 802998725 A SU802998725 A SU 802998725A SU 2998725 A SU2998725 A SU 2998725A SU 932366 A1 SU932366 A1 SU 932366A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stress concentration
- cyclic loading
- plane specimen
- investigating
- effect
- Prior art date
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
6 и 8 в сечени х утонений 9 и 10, которые вл ютс концентраторами напр жен )1й в 10 - 20 раз меньше площади участка 7 образца. Данное соотношение площадей сечений участков позвол ет обеспечить проведение испытани в услови х жесткого циклического дефop 4иpoвaни материала на участках б и 8. Дл определени усилий, возникающих в сечени х утонений 9 и 10, служат тензорезисторы 11 и 12,6 and 8 in thin sections 9 and 10, which are stress concentrators) 1st is 10-20 times smaller than the area of sample 7. This ratio of the cross-sectional areas of the sections allows the testing of material and material in areas b and 8 under rigid cyclic defopes.
При испытании образец подвергают знакопеременному деформированию/ в зоне утонений 9 и 10 локализуютс пластические деформации, а затем происходит разрушение испытываемого материала. Изменение жесткости образца , св занное с усталостным трещинробразованием , не вли ет на параметры испытани в используемом нагружающем устройстве. Дл получени различных величин коэффициента концентр ации напр жений используют образцы с различным соотнсипением длины щхэрезей 4 и 5 и длины утонений 9. Коэффициенты концентрации d- 1-4 соо ветствуют сооТношени|о длин 1-16. Использование предлагаемого образца позвол ет при испытании вьщержать услови деформировани материала в оне концентратора дл наиболее сложной -ситуации испытани , когда величина изменени деформации остаетс посто нной (жесткое нагружение).During the test, the sample is subjected to alternating deformation (plastic deformations are localized in the thinning zones 9 and 10, and then the test material is destroyed. The change in specimen stiffness associated with fatigue cracking does not affect the test parameters in the loading device used. To obtain different values of stress concentration factor, samples with different ratios of length 4 and 5 and thinning length 9 are used. The concentration factors d-1-4 correspond to relations of lengths 1-16. The use of the proposed sample makes it possible to test the conditions for deforming the material in the concentrator for the most difficult test situations when the magnitude of the strain change remains constant (hard loading).
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802998725A SU932366A1 (en) | 1980-10-24 | 1980-10-24 | Plane specimen for investigating effect of stress concentration in cyclic loading |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU802998725A SU932366A1 (en) | 1980-10-24 | 1980-10-24 | Plane specimen for investigating effect of stress concentration in cyclic loading |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU932366A1 true SU932366A1 (en) | 1982-05-30 |
Family
ID=20923989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU802998725A SU932366A1 (en) | 1980-10-24 | 1980-10-24 | Plane specimen for investigating effect of stress concentration in cyclic loading |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU932366A1 (en) |
-
1980
- 1980-10-24 SU SU802998725A patent/SU932366A1/en active
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