The accuracy of strategies combining heterogeneous mechanical tests and full-field strain measurement techniques is dependent on many factors. Recently, many heterogeneous mechanical tests with different specimen shapes have been proposed using optimization techniques or empirical knowledge. However, a comparison of heterogeneous mechanical tests is a difficult task because studies use different materials and different representations of the strain and stress states. This work discusses metrics, calculated from the stress and strain tensors, to evaluate heterogeneous mechanical tests and proposes a metric to evaluate the tests’ sensitivity to anisotropy. To illustrate the approach, four heterogeneous mechanical tests are evaluated through the use of the suggested metrics. Results show that the use of various metrics provides a good basis to evaluate heterogeneous mechanical tests. Moreover, this work identifies a heterogeneous mechanical test achieving a high range of mechanical states and high values of equivalent plastic strain.

结合异构力学测试和全场应变测量技术的策略的准确性取决于许多因素。最近，使用优化技术或经验知识提出了许多具有不同试样形状的异质力学测试。然而，异质力学测试的比较是一项艰巨的任务，因为研究使用不同的材料以及不同的应变和应力状态表示。这项工作讨论了从应力和应变张量计算的度量，以评估异质力学测试，并提出了一个度量来评估测试对各向异性的敏感性。为了说明该方法，通过使用建议的指标评估了四个异构机械测试。结果表明，各种指标的使用为评估异构力学测试提供了良好的基础。此外，这项工作确定了一种异质力学测试，可实现大范围的机械状态和高等效塑性应变值。