通过对带中心裂纹拉伸小板的应变场实际测试,作者认为:只要恰当地选取裂纹尺寸,用这种小板来研究处在高应变区内的裂纹的扩展行为是有可能的。 本文论及针对这种试板,调用ADINA程序进行弹塑性有限元分析,平面应力模式下的计算结果与实际测试结果十分接近。 By actually testing the strain field of the central cracked plate with small cracks, the author thinks that it is possible to study the crack propagation in the high-strain region with this small plate, as long as the crack size is chosen properly. In this paper, aiming at this kind of test board, ADINA program is called for elastoplastic finite element analysis. The calculation results in plane stress mode are in good agreement with the actual test results.