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Uniaxial and biaxial ratcheting of ST52 steel under variable amplitude loading-experiments and modeling

机译:可变幅度载荷实验下ST52钢的单轴和双轴棘轮

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The paper shows results of experiments focused on the influence of loading frequency on ratcheting as well as interesting results obtained from uniaxial tests and biaxial tests with rectangular and circular loading paths under variable amplitude loading realized on the ST 52 steel at the VSB-Technical University of Ostrava. The model based on the AbdelKarim-Ohno kinematic hardening rule and Calloch isotropic hardening rule was used for stress-strain behavior description in finite element analysis using commercial software Ansys. The material model was implemented into the FE code using a fortran subroutine. Results of simulations containing ratcheting and cyclic hardening effects correspond with experiments very well.
机译:本文显示了专注于负载频率对棘轮的影响的实验结果以及在VSB技术大学的ST 52钢上实现的可变幅度负载下的单轴试验和双轴试验获得的有趣结果ostrava。基于Abdelkarim-Ohno运动学硬化规则和Calloch各向同性硬化规则的模型用于使用商业软件Ansys进行有限元分析中的应力 - 应变行为描述。材料模型使用Fortran子程序实施到FE代码中。含有棘轮和循环硬化效果的模拟结果对应于实验。

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