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首页> 外文会议>World Congress on Integrated Computational Materials Engineering >FULL-FIELD MULTI-SCALE MODELLING OF SHEET METAL FORMING TAKING THE EVOLUTION OF TEXTURE AND PLASTIC ANISOTROPY INTO ACCOUNT
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FULL-FIELD MULTI-SCALE MODELLING OF SHEET METAL FORMING TAKING THE EVOLUTION OF TEXTURE AND PLASTIC ANISOTROPY INTO ACCOUNT

机译：钣金形成的全场多尺度建模，以纹理和塑性各向异性的演化考虑

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Focus is on the implementation of texture-induced plastic anisotropy in FE simulations of metal forming. The crystallographic texture can be introduced as a state variable in every integration point. A multi-scale model is then called to calculate the stress-strain response and the local texture evolution in every integration point and for every strain increment. Less calculation-intensive is to use anisotropic analytical constitutive models, identified in advance from mechanical tests. These can also be done in a "virtual" way, i. e. using measured texture data and a multi-scale model. However, texture evolution is then not taken into account. An adaptive scheme for updating the texture and the anisotropy has been developed recently. Texture and anisotropy were updated by the ALAMEL-model. Results for some sheet metal forming processes are shown. The calculation times had been reduced from months to days. Predicted fields of plastic anisotropy and textures are discussed including experimental validation.
机译：重点是在金属成形二氧化碳仿真中实现纹理诱导的塑性各向异性。可以在每个集成点中作为状态变量引入晶体纹理。然后调用多尺度模型以计算每个集成点和每个应变增量的应力应变响应和局部纹理演变。较少的计算密集型是使用各向异性分析构成型模型，从机械测试中识别。这些也可以以“虚拟”方式完成。 e。使用测量的纹理数据和多尺度模型。但是，那么没有考虑纹理进化。最近开发了一种用于更新纹理和各向异性的自适应方案。纹理和各向异性由Alamel-Model更新。显示了一些金属板形成过程的结果。计算时间从几个月减少到几天。讨论了预测塑料各向异性和纹理的领域，包括实验验证。

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