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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Stress induced conditioning and thermal relaxation in the simulation of quasi-static compression experiments
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Stress induced conditioning and thermal relaxation in the simulation of quasi-static compression experiments

机译:准静态压缩实验模拟中的应力诱导条件和热松弛

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Local interaction simulation approach simulations of the ultrasonic wave propagation in multi-grained materials have succeeded in reproducing most of the recently observed nonclassical nonlinear effects, such as stress-strain hysteresis and discrete memory in quasi-static experiments and a downwards shift of the resonance frequency and the generation of odd harmonics at specific amplitude rates in dynamics experiments. By including a simple mechanism of thermally activated random transitions, we can predict the occurrence of experimentally observed effects, such as the conditioning and relaxation of the specimen. Experiments are also suggested for a quantitative assessment of the validity of the model. [References: 19]
机译:超声波在多颗粒材料中传播的局部相互作用模拟方法模拟已成功重现了最近观察到的大多数非经典非线性效应,例如准静态实验中的应力应变滞后和离散记忆以及共振频率的下移以及在动力学实验中以特定幅度速率产生奇次谐波。通过包括热激活的随机跃迁的简单机制,我们可以预测实验观察到的效应的发生,例如试样的调节和松弛。还建议进行实验,以定量评估模型的有效性。 [参考:19]

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