Homogenization of the Prager model in one-dimensional plasticity

Homogenization of the Prager model in one-dimensional plasticity
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一维塑性中 Prager 模型的均匀化

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发表时间:
2009
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通讯作者:
B. Schweizer
B. Schweizer
中科院分区:
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作者:
B. Schweizer

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提出了一种新的塑性滞回模型均匀化方法。对于具有弹塑性应力应变关系的一维波动方程,我们导出了平均方程,并对随机材料参数进行了均匀化极限。这推广了Francesco和Krejčí的开创性论文的结果。我们的方法依赖于偏微分方程的能量方法,并提供了简短的证明,没有复发滞后算子理论。
We propose a new method for the homogenization of hysteresis models of plasticity. For the one-dimensional wave equation with an elasto-plastic stress-strain relation we derive averaged equations and perform the homogenization limit for stochastic material parameters. This generalizes results of the seminal paper by Franců and Krejčí. Our approach rests on energy methods for partial differential equations and provides short proofs without recurrence to hysteresis operator theory.