RU96113153A - METHOD FOR DETERMINING THE LIMIT OF CONTACT ENDURANCE OF MATERIAL - Google Patents
METHOD FOR DETERMINING THE LIMIT OF CONTACT ENDURANCE OF MATERIALInfo
- Publication number
- RU96113153A RU96113153A RU96113153/28A RU96113153A RU96113153A RU 96113153 A RU96113153 A RU 96113153A RU 96113153/28 A RU96113153/28 A RU 96113153/28A RU 96113153 A RU96113153 A RU 96113153A RU 96113153 A RU96113153 A RU 96113153A
- Authority
- RU
- Russia
- Prior art keywords
- contact
- curvature
- limit
- test material
- radius
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims 6
- 230000000875 corresponding Effects 0.000 claims 2
- 238000005259 measurement Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
Claims (1)
i = (h1 - h2)/(P1 - P2),
по которому определяют предел контактной выносливости по следующей зависимости
σR = a(i•Rпр)b,
где σR - предел контактной выносливости;
i - коэффициент пластической нормальной контактной податливости;
Rпр - приведенный радиус кривизны в контакте индентора с испытуемой поверхностью;
P1, P2 - нагрузки на индетор;
h1, h2 - глубины остаточных отпечатков, отвечающие нагрузкам P1 и P2;
a, b - коэффициенты контактной прочности, зависящие от химического состава испытуемого материала и схемы нагружения его поверхности при эксплуатации.A method for determining the contact endurance limit of a material, namely, that the test material is loaded by means of a spherical indenter of radius R, after removing the load P, the print parameters are measured and the contact endurance limit of the test material is determined, characterized in that the radii of curvature of the test surface in sections are previously measured in two the principal planes and the radius of curvature of the spherical indenter, which determine the reduced radius of curvature R, etc., using two different LOAD ki in the range corresponding to the measurement of hardness, insert a spherical indenter into the test material and measure the depths of the two residual fingerprints obtained, determine the coefficient of plastic normal contact compliance
i = (h 1 - h 2 ) / (P 1 - P 2 ),
which determine the limit of contact endurance by the following relationship
σ R = a (i • R ol ) b ,
where σ R is the contact endurance limit;
i is the coefficient of plastic normal contact compliance;
R CR - reduced radius of curvature in contact of the indenter with the test surface;
P 1 , P 2 - load on the indexer;
h 1 , h 2 - the depth of the residual fingerprints corresponding to the loads P 1 and P 2 ;
a, b - contact strength coefficients, depending on the chemical composition of the test material and the scheme of loading of its surface during operation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU96113153A RU2123175C1 (en) | 1996-06-25 | 1996-06-25 | Method determining limit of contact endurance of material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU96113153A RU2123175C1 (en) | 1996-06-25 | 1996-06-25 | Method determining limit of contact endurance of material |
Publications (2)
Publication Number | Publication Date |
---|---|
RU96113153A true RU96113153A (en) | 1998-10-10 |
RU2123175C1 RU2123175C1 (en) | 1998-12-10 |
Family
ID=20182581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU96113153A RU2123175C1 (en) | 1996-06-25 | 1996-06-25 | Method determining limit of contact endurance of material |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2123175C1 (en) |
Cited By (2)
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RU2561788C1 (en) * | 2014-06-17 | 2015-09-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | Method of determination of coefficient of viscosity of microdestruction of thin films from multicomponent amorphous and nanocrystal metal alloys (versions) |
RU202674U1 (en) * | 2020-11-25 | 2021-03-02 | федеральное государственное бюджетное образовательное учреждение высшего образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | DEVICE FOR MEASURING ROCK STRENGTH |
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RU2599069C1 (en) * | 2015-06-24 | 2016-10-10 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Волгоградский государственный технический университет" (ВолгГТУ) | Method of determining endurance limit of material at tension-compression |
RU2700328C2 (en) * | 2018-03-12 | 2019-09-16 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Method for determining the limit of endurance of material in bending |
RU2765340C1 (en) * | 2021-04-14 | 2022-01-28 | Федеральное государственное бюджетное образовательное учреждение высшего образования "Волгоградский государственный технический университет" (ВолгГТУ) | Method for determining the endurance limit of the material of a cylindrical part under torsion |
-
1996
- 1996-06-25 RU RU96113153A patent/RU2123175C1/en active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2561788C1 (en) * | 2014-06-17 | 2015-09-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС" | Method of determination of coefficient of viscosity of microdestruction of thin films from multicomponent amorphous and nanocrystal metal alloys (versions) |
RU202674U1 (en) * | 2020-11-25 | 2021-03-02 | федеральное государственное бюджетное образовательное учреждение высшего образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | DEVICE FOR MEASURING ROCK STRENGTH |
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