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本文从实验和有限无数值计算两方面研究了浅裂纹三点弯曲试件的COD值、裂纹尖端处的静水应力σH和转动因子r,并对浅、深裂纹试件断裂特性进行了比较,为工程断裂设计提供了参考。
In this paper, the COD value, the hydrostatic stress σH at the crack tip and the rotation factor r are investigated from two aspects of the experiment and the finite non-numerical calculation. The fracture characteristics of shallow and deep cracked specimens are compared Engineering fracture design provides a reference.