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首页> 外文期刊>Проблемы прочностиПроблемы прочности: на рус.укр.и анг.языках >Area and Point Approaches in Fatigue Life Evaluation under Combined Bending and Torsion Loading
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Area and Point Approaches in Fatigue Life Evaluation under Combined Bending and Torsion Loading

机译:区域和点疲劳寿命的方法评估在弯曲和扭转联合加载

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摘要

We present a new nonlocal approach to nonuniform stress distribution, consisting in reduction of stresses to representative local ones in the critical plane for fatigue life calculation. The shear and normal stresses are averaged in two overlapping areas of different sizes on the critical plane: The proposed method is compared with the point (in critical distance) method and both are verified by fatigue tests under combined bending and torsion. Verification is done for the experimental and calculated fatigue lives with use of two multiaxial fatigue failure criteria.
机译:提出了一种新的非局部不均匀的方法应力分布,包括在减少代表当地的压力关键飞机疲劳寿命计算。剪切和正常压力平均在两个重叠区域的大小不同关键的飞机:该方法比较在临界距离的点()方法都是由疲劳试验验证的总和弯曲和扭转。实验和计算疲劳的生活使用两个多轴疲劳失效准则。

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