SU930063A1 - Method of determination specimen material fatigue damage - Google Patents
Method of determination specimen material fatigue damage Download PDFInfo
- Publication number
- SU930063A1 SU930063A1 SU803006349A SU3006349A SU930063A1 SU 930063 A1 SU930063 A1 SU 930063A1 SU 803006349 A SU803006349 A SU 803006349A SU 3006349 A SU3006349 A SU 3006349A SU 930063 A1 SU930063 A1 SU 930063A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- fatigue
- damage
- sample
- samples
- cycles
- Prior art date
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
(5) СПОСОБ ОПРЕДЕЛЕНИЯ УСТАЛОСТНОГО ПОВРЕЖДЕНИЯ МАТЕРИАЛА ОБРАЗЦА(5) METHOD FOR DETERMINING FATIGUE DAMAGE OF SAMPLE MATERIAL
II
Изобретение относитс к исследованию прочностных свойств материала , в частности к способам определени усталостного повреждени материала образца.The invention relates to the study of the strength properties of a material, in particular, to methods for determining the fatigue damage of a sample material.
Наиболее близким к изобретению по технической сущности вл етс способ определени усталостного повреждени материала образца, по которому образцы, не разрушившиес после усталостного нагружени , подвергают испытанию на статическое раст жение и по параметру разрушени суд т о повреждении материала.The closest to the invention by its technical nature is a method for determining the fatigue damage of a sample material, by which samples not destroyed after fatigue loading, are subjected to a static tensile test and a material damage test is determined by the destruction parameter.
В известном способе в качестве параметра разрушени используют предел прочности на разрыв 13.In the known method, the tensile strength 13 is used as the fracture parameter.
Недостатком известного способа вл етс низка достоверность определени усталостного повреждени материала образца, вследствие слабой коррел ции между величиной усталостного повреждени материала и значени ми статических механических характеристик . Особенно низка достоверность определени усталостного пов реждени имеет место дл образцов, не имеющих видимых следов повреждений после базового числа циклов.The disadvantage of this method is the low accuracy of the determination of the fatigue damage of the sample material, due to weak correlation between the value of the fatigue damage of the material and the values of static mechanical characteristics. Particularly low reliability of the determination of fatigue damage occurs for samples that have no visible signs of damage after the base number of cycles.
Цель изобретени - повышение достоверности результатов.The purpose of the invention is to increase the reliability of the results.
Указанна цель достигаетс тем, что согласно способу определени усталостного повреждени материала This goal is achieved in that, according to the method for determining fatigue damage of a material
iO образца, по которому образцы, не разрушившиес после усталостного нагружени , подвергают испытанию на статическое раст жение и по параметру разрушени суд т о повреждении iO of the sample for which samples not destroyed after fatigue loading are subjected to static stretch testing and damage is judged by the destruction parameter.
IS материала, в качестве параметра разрушени измер ют длину зоны локальной пластической деформации при разрушении образца.The IS of the material, as a parameter of the fracture, measures the length of the zone of local plastic deformation during the destruction of the sample.
Способ осуществл етс следующим The method is as follows.
ж образом.well way.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU803006349A SU930063A1 (en) | 1980-11-18 | 1980-11-18 | Method of determination specimen material fatigue damage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU803006349A SU930063A1 (en) | 1980-11-18 | 1980-11-18 | Method of determination specimen material fatigue damage |
Publications (1)
Publication Number | Publication Date |
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SU930063A1 true SU930063A1 (en) | 1982-05-23 |
Family
ID=20926838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU803006349A SU930063A1 (en) | 1980-11-18 | 1980-11-18 | Method of determination specimen material fatigue damage |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU930063A1 (en) |
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1980
- 1980-11-18 SU SU803006349A patent/SU930063A1/en active
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