The aim of this work is to propose a modification of the Jiang criterion (Jiang in Fatigue Fract Eng Mater Struct 23:19–32, 2000), developed for the general multiaxial loading on our own experimental data gained for the aluminium alloy 2124-T851, currently mostly used in the aviation industry, and the stainless steel 316L under combined loading states in low-cycle fatigue domain. Eight strain loading paths with the constant amplitude cycling were considered for AA2124-T851, including the proportional and non-proportional axial-torsional loading. The proposed generalization of the Jiang criterion leads to the modification of the damage accumulation procedure and is consistent with the original criterion. The comparison of predicted and experimental results shows that the improvement of prediction abilities has been achieved. The new criterion is also more conservative than the original one. There is well-known additional hardening due to non-proportional loading for austenitic stainless steels. Therefore, a new non-proportional parameter has been introduced to achieve more reliable results of predictions for proportional as well as non-proportional loading cases in the case of SS316L.

这项工作的目的是提出对江标准（Jiang in Fatigue Fract Eng Mater Struct 23：19–32，2000）的修改，该标准是根据我们自己从铝合金2124-T851获得的实验数据开发的，用于一般的多轴载荷，目前主要用于航空业，而在低循环疲劳域中的联合载荷状态下使用的是316L不锈钢。对于AA2124-T851，考虑了八个具有恒定振幅循环的应变加载路径，包括比例和非比例的轴向扭转负载。江准则的拟议概括导致了损害累积程序的修改，并且与原始准则一致。预测结果与实验结果的比较表明，已经实现了预测能力的提高。新标准也比原始标准更为保守。众所周知，由于奥氏体不锈钢的载荷不成比例，因此会产生额外的硬化。因此，引入了新的非比例参数，以在SS316L情况下获得更可靠的比例和非比例载荷情况的预测结果。