THE CONSTITUTIVE BEHAVIOUR OF PARTICULATE MATERIALS: MODELS FOR COMPACTION AND EJECTION

机译：特定材料的本构行为：压紧和弹出模型

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In this paper we present a general overview of constitutive models which describe the deformation of particulate materials. Incremental and deformation plasticity models are described which have either been developed empirically or from an understanding of internal micromechanical processes. These models are evaluated in the context of Powder Metallurgical processing routes and their ability to describe the material response during stress histories which are typical of those experienced during closed-die compaction and ejection is critically assessed. Experimental procedures are described for the evaluation of the constitutive response. Areas where additional research is required in order to develop models which are capable of providing reliable process information in an industrial environment are described.

机译：在本文中，我们介绍了描述颗粒材料变形的本构模型的一般概述。描述了增量和变形可塑性模型，这些模型是根据经验或通过对内部微机械过程的理解而开发的。这些模型是在粉末冶金工艺路线的背景下进行评估的，并严格评估了它们描述应力历史过程中材料响应的能力，而应力历史是典型的闭模压实和弹出过程中经历的。描述了用于评估本构反应的实验程序。描述了需要进行额外研究以开发能够在工业环境中提供可靠的过程信息的模型的领域。

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来源
《2002 International Conference on Process Modeling in Powder Metallurgy amp; Particulate Materials Oct 28-29, 2002 Newport Beach, California》|2002年|p.18-26|共9页
会议地点 Newport Beach CA(US)
作者
Alan C.F. Cocks;
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作者单位

Department of Engineering, University of Leicester, Leicester LE1 7RH UK;

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原文格式 PDF
正文语种 eng
中图分类机械、仪表工业;
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6. Micromechanics-Based Continuum Constitutive Modeling of Isotropic Non-Cohesive Particulate Materials, Informed and Validated by the Discrete Element Method. [D] . Fleischmann, Jonathan A. 2013

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THE CONSTITUTIVE BEHAVIOUR OF PARTICULATE MATERIALS: MODELS FOR COMPACTION AND EJECTION

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