Thermoelastic stress analysis: The mean stress effect in metallic alloys

被引：7

作者：

Gyekenyesi, AL ^{[1
]}

Baaklini, GY ^{[1
]}

机构：

[1] NASA, Lewis Res Ctr, Cleveland, OH 44115 USA

来源：

NONDESTRUCTIVE EVALUATION OF AGING MATERIALS AND COMPOSITES III | 1999年 / 3585卷

关键词：

thermoelastic stress analysis; TSA; thermoelastic constant; residual stress; mean stress; stress pattern analysis by thermal emission; SPATE;

D O I：

10.1117/12.339842

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The primary objective of this study involved the utilization of the thermoelastic stress analysis (TSA) method to demonstrate the mean stress dependence of the thermoelastic constant. Titanium and nickel base alloys, commonly employed in aerospace gas turbines, were the materials of interest. The repeatability of the results was studied through a statistical analysis of the data. Although the mean stress dependence was well established, the ability to confidently quantify it was diminished by the experimental variations. If calibration of the thermoelastic response to mean stress can be successfully implemented, it is feasible to use the relationship to determine a structures residual stress state.

引用

页码：142 / 151

页数：10

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