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Crystal Plasticity Modeling for Non-ferrous Metals and its Engineering Applications
ISIJ International ( IF 1.6 ) Pub Date : 2020-09-25 , DOI: 10.2355/isijinternational.isijint-2020-011
Takayuki Hama 1
Affiliation  

Crystal plasticity models enable predictions of macroscopic deformation behavior as well as texture evolution of metallic materials based on mesoscopic deformation at the grain level. Owing to recent improvements in predictive accuracy, crystal plasticity models are expected to be used not only for academic purposes but also for industrial applications. There are several possible approaches for utilizing crystal plasticity models in industrial applications, including numerical material testing, in which the material parameters of phenomenological constitutive models are determined; alternative constitutive equations in simulations; and the development of innovative materials with improved formability. In this review paper, recent progress in crystal plasticity modeling, specifically in terms of engineering applications, is discussed. The focus is primarily on hexagonal close-packed (hcp) metals, including magnesium alloy and commercially pure titanium sheets, which exhibit strong anisotropic and asymmetric deformation behavior. On the basis of our recent progresses, the crystal plasticity modeling was first explained, followed by some application examples for a variety of loading conditions, including uniaxial tension and compression, reverse loading, and biaxial tension. The application to face-centered cubic (fcc) and body-centered cubic (bcc) metals and future prospects are also discussed.



中文翻译:

有色金属的晶体塑性建模及其工程应用

晶体可塑性模型能够基于晶粒级的介观形变来预测宏观变形行为以及金属材料的纹理演变。由于预测准确性的最新改进,预计晶体可塑性模型不仅可以用于学术目的,而且可以用于工业应用。有几种在工业应用中利用晶体可塑性模型的方法,包括数值材料测试,其中确定现象学本构模型的材料参数。模拟中的替代本构方程;以及开发具有改善可成型性的创新材料。在这篇综述文章中,讨论了晶体可塑性建模的最新进展,特别是在工程应用方面。重点主要放在六方密堆积(hcp)金属上,包括镁合金和商业纯钛薄板,它们表现出强烈的各向异性和不对称变形行为。在我们最近的进展的基础上,首先解释了晶体可塑性建模,然后给出了在各种加载条件下的一些应用示例,包括单轴拉伸和压缩,反向加载和双轴拉伸。还讨论了在面心立方(fcc)和体心立方(bcc)金属中的应用以及未来前景。接下来是一些适用于各种加载条件的应用示例,包括单轴拉伸和压缩,反向加载和双轴拉伸。还讨论了在面心立方(fcc)和体心立方(bcc)金属中的应用以及未来前景。接下来是一些适用于各种加载条件的应用示例,包括单轴拉伸和压缩,反向加载和双轴拉伸。还讨论了在面心立方(fcc)和体心立方(bcc)金属中的应用以及未来前景。

更新日期:2020-09-25
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