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Metal failure effects predicted accurately with a unified and explicit criterion
ZAMM - Journal of Applied Mathematics and Mechanics ( IF 2.3 ) Pub Date : 2021-06-05 , DOI: 10.1002/zamm.202100140 Si‐Yu Wang 1 , Lin Zhan 1 , Otto Timme Bruhns 2 , Heng Xiao 1
ZAMM - Journal of Applied Mathematics and Mechanics ( IF 2.3 ) Pub Date : 2021-06-05 , DOI: 10.1002/zamm.202100140 Si‐Yu Wang 1 , Lin Zhan 1 , Otto Timme Bruhns 2 , Heng Xiao 1
Affiliation
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A new criterion for predicting metal failure effects under cyclic loading conditions is derived from an innovative elastoplasticity model established most recently. As compared with usual approaches, novel results with this new criterion are presented in four respects: (i) both low and high cycle fatigue effects can be simultaneously simulated in a unified and direct manner; (ii) cumbersome trial-and-error procedures in identifying numerous unknown parameters can be bypassed; (iii) time-consuming numerical procedures are not involved in treating responses in cyclic loading processes; and, for the first time, (iv) data sets for fatigue failure can be simultaneously matched for various cases of the cyclic stress ratio. Numerical examples show that model predictions are in accurate agreement with test data.
中文翻译：
使用统一明确的标准准确预测金属失效影响
预测循环载荷条件下金属失效效应的新标准源自最近建立的创新弹塑性模型。与通常的方法相比，这个新准则的新结果体现在四个方面：(i) 可以以统一和直接的方式同时模拟低周和高周疲劳效应；(ii) 可以绕过识别众多未知参数的繁琐试错程序；(iii) 在处理循环加载过程中的响应时不涉及耗时的数值程序；并且，第一次，(iv) 疲劳失效数据集可以同时匹配循环应力比的各种情况。数值例子表明模型预测与测试数据准确一致。
更新日期：2021-06-05
中文翻译：
使用统一明确的标准准确预测金属失效影响
预测循环载荷条件下金属失效效应的新标准源自最近建立的创新弹塑性模型。与通常的方法相比，这个新准则的新结果体现在四个方面：(i) 可以以统一和直接的方式同时模拟低周和高周疲劳效应；(ii) 可以绕过识别众多未知参数的繁琐试错程序；(iii) 在处理循环加载过程中的响应时不涉及耗时的数值程序；并且，第一次，(iv) 疲劳失效数据集可以同时匹配循环应力比的各种情况。数值例子表明模型预测与测试数据准确一致。
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