A Study of Biaxial Strains at Notch Roots at High Temperature

机械系统在较高温度下运行会带来更高的效率，但适当的设计需要了解各个部件的行为。这反过来需要一个合适的材料响应模型和一种计算临界点的应力和应变的方法。详细的预测能力才刚刚出现，必须进行评估。这项研究的目的是测量在高温(使用基于激光的技术)(650℃)下测试的金属试件在应力集中时的双轴应变，并将结果与预测进行比较。

Operation of mechanical systems at higher temperatures leads to greater efficiency, but proper design requires the understanding of the behavior of the individual components. This, in turn, requires a suitable model of the material response and a means of computing the stresses and strains at critical points. Detailed predictive capabilities are just becoming available and must be evaluated. The objective of this research is to measure biaxial strains at stress concentrations in metal specimens tested at high temperature (using laser based techniques) (650oC) and compare the results with predictions.