Life prediction based on weight-averaged maximum shear strain range plane under multiaxial variable amplitude loading
Life prediction based on weight-averaged maximum shear strain range plane under multiaxial variable amplitude loading
复制标题
多轴变幅载荷下基于重量平均最大剪应变范围平面的寿命预测
DOI：
10.1111/ffe.12417
复制
发表时间：
2016
影响因子：
3.7
通讯作者：
Chen H.
中科院分区：
文献类型：
--
作者：
Tao Z-Q.;Shang D-G.;Liu H.;Chen H.
基于Wang和Brown的反向计数法，提出了一种确定多轴变幅载荷作用下最大剪应变加权平均范围内的临界面的新方法。根据确定的临界平面，详细介绍了多轴疲劳寿命预测的步骤，以预测低周多轴疲劳区的寿命。通过两种多轴疲劳损伤模型和Miner线性累积损伤定律对所提出的方法进行了验证。结果表明，该方法能有效地预测多轴变幅载荷作用下的失效面方向，并能给出令人满意的寿命预测。
Based on Wang and Brown's reversal counting method, a new approach to the determination of the critical plane is proposed by the defined plane with a weight‐averaged maximum shear strain range under multiaxial variable amplitude loading. According to the determined critical plane, a detailed procedure of multiaxial fatigue life prediction is introduced to predict lives in the low‐cycle multiaxial fatigue regime. The proposed approach is verified by two multiaxial fatigue damage models and Miner's linear cumulative damage law. The results showed that the proposed approach can effectively predict the orientation of the failure plane under multiaxial variable amplitude loading and give a satisfactory life prediction.