SU939996A1 - Method of checking material fatigue - Google Patents
Method of checking material fatigue Download PDFInfo
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- SU939996A1 SU939996A1 SU802982689A SU2982689A SU939996A1 SU 939996 A1 SU939996 A1 SU 939996A1 SU 802982689 A SU802982689 A SU 802982689A SU 2982689 A SU2982689 A SU 2982689A SU 939996 A1 SU939996 A1 SU 939996A1
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- SU
- USSR - Soviet Union
- Prior art keywords
- intensity
- reflection
- specular
- diffuse
- light
- Prior art date
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- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
(54) СПОСОБ КОНТРОЛЯ УСТАЛОСТИ МАТЕРИАЛА(54) METHOD OF CONTROL OF FATIGUE MATERIAL
1one
Изобретение относитс к испытани м материалов и элементов конструкшге, в частности к способам контрол усталости материала.The invention relates to the testing of materials and construction elements, in particular to methods for controlling material fatigue.
Наиболее близким к предлагаемому по технической сущности вл етс способ контрол усталости материала, по которому измер ют интенсивность зеркального отражени контролируемого участка по- ... верхности испытываемого объекта ти по изменению интенсивности зеркального от ражешш суд т об усталостном состо нии материала fl The closest to the proposed technical entity is a method of controlling the fatigue of a material, by which the intensity of specular reflection of the test area of the surface of the test object is measured by changing the intensity of the specular reflection of the material fatigue state fl
Недостатком известного способа вл етс его низка точность, так как он не позвол ет фиксировать усталостные трещины длиной менее 0,2 мм и не дает возможности осуществл ть контроль и 20 оценку накоплени усталостных поврежд&ний ..A disadvantage of the known method is its low accuracy, since it does not allow fixing fatigue cracks with a length of less than 0.2 mm and makes it impossible to monitor and estimate the accumulation of fatigue damage & ..
Цель изобретени - повышение точноогу контрол .The purpose of the invention is to increase the accuracy of the control.
Указанна цель достигаетс тем, что одновременно с интенсивностью зеркального отражени измер ют также интенсивность диффузного отражени того же участка поверхности, измерени производ т на длинах волн, соизмеримых с размерами начальных усталостных дефектов, подлежащих регистрации и по соотношению интенсивностей зеркального и диффузного отражений суд т об усталостном состо нии материала.This goal is achieved by the fact that, simultaneously with the intensity of specular reflection, the intensity of diffuse reflection of the same surface area is also measured, measurements are made at wavelengths comparable to the size of the initial fatigue defects to be recorded and by the ratio of the intensities of specular and diffuse reflections judged fatigue material condition.
На чертеже изображена схема контрол усталости материала.The drawing shows a diagram of the control of material fatigue.
Способ осуществл етс следующим образом .The method is carried out as follows.
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802982689A SU939996A1 (en) | 1980-09-12 | 1980-09-12 | Method of checking material fatigue |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU802982689A SU939996A1 (en) | 1980-09-12 | 1980-09-12 | Method of checking material fatigue |
Publications (1)
Publication Number | Publication Date |
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SU939996A1 true SU939996A1 (en) | 1982-06-30 |
Family
ID=20917969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU802982689A SU939996A1 (en) | 1980-09-12 | 1980-09-12 | Method of checking material fatigue |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU939996A1 (en) |
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1980
- 1980-09-12 SU SU802982689A patent/SU939996A1/en active
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