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Experimental characterization and damage modeling of a particle reinforced TWIP-steel matrix composite

机译:颗粒增强TWIP-钢基复合材料的实验表征和损伤建模

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摘要

A phenomenological damage model is proposed to describe the mechanical behavior of a particle reinforced TWIP-steel matrix composite. Starting point of the study is Rousselier's model for ductile damage of metals, which is extended by a damage nucleation criterion. This criterion involves an overall progress of particle based damage events like particle cracking or debonding from matrix. The dependency of the material behavior on triaxiality and Lode-parameter is taken into account. Micro-mechanical simulations and experiments are used to test and calibrate the model. Deformation behavior, damage evolution and final failure predicted by the calibrated damage model are in good agreement with numerically generated and experimentally determined material data.
机译:提出了一种现象学损伤模型来描述颗粒增强TWIP-钢基复合材料的力学行为。研究的起点是Rousselier对金属的延性损伤的模型,该模型通过损伤成核标准得到扩展。该标准涉及基于颗粒的损坏事件(如颗粒破裂或从基体脱粘)的总体进展。考虑到材料行为对三轴性和洛德参数的依赖性。使用微机械仿真和实验来测试和校准模型。校准后的损伤模型预测的变形行为,损伤演化和最终破坏与通过数值计算和实验确定的材料数据非常吻合。

著录项

  • 来源
    《Materials Science and Engineering》 |2016年第26期|342-355|共14页
  • 作者单位

    TU Bergakademie Freiberg, Institute of Mechanics and Fluid Dynamics, Lampadiusstrasse 4, 09599 Freiberg, Germany;

    TU Bergakademie Freiberg, Institute of Materials Engineering, Gustav-Zeuner-Strasse 5, 09599 Freiberg, Germany;

    TU Bergakademie Freiberg, Institute of Mechanics and Fluid Dynamics, Lampadiusstrasse 4, 09599 Freiberg, Germany;

    TU Bergakademie Freiberg, Institute of Mechanics and Fluid Dynamics, Lampadiusstrasse 4, 09599 Freiberg, Germany;

    TU Bergakademie Freiberg, Institute of Materials Engineering, Gustav-Zeuner-Strasse 5, 09599 Freiberg, Germany;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Metal matrix composite; Damage modeling; Rousselier model; TWIP-steel;

    机译:金属基复合材料;损伤建模;Rousselier模型;TWIP钢;

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