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首页> 外文期刊>Journal of engineering materials and technology >One-Dimensional Dynamic Compressive Behavior of EPDM Rubber
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One-Dimensional Dynamic Compressive Behavior of EPDM Rubber

机译：EPDM橡胶的一维动态压缩行为

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摘要

Dynamic compressive stress-strain curves at various strain rates of an Ethylene-Propylene-Diene Monomer Copolymer (EPDM) rubber have been determined with a modified split Hopkinson pressure bar (SHPB). The use of a pulse-shaping technique ensures that the specimen deforms at a nearly constant strain rate under dynamically equilibrated stress. The validity of the experiments was monitored by a high-speed digital camera for specimen edge deformation, and by piezoelectric force transducers for dynamic stress equilibrium. The resulting dynamic stress-strain curves for the EPDM indicate that the material is sensitive to strain rates and that the strain-rate sensitivity depends on the value of strain. Based on a strain energy function theory, a one-dimensional dynamic constitutive equation for this rubber was modified to describe the high strain rate experimental results within the ranges of strain and strain rates presented in this paper.
机译：乙烯-丙烯-二烯单体共聚物（EPDM）橡胶在各种应变率下的动态压缩应力-应变曲线已通过改进的霍普金森压力杆（SHPB）确定。使用脉冲整形技术可确保样品在动态平衡应力下以几乎恒定的应变速率变形。实验的有效性通过高速数码相机检测样品边缘变形，并通过压电力传感器监测动态应力平衡。 EPDM产生的动态应力-应变曲线表明该材料对应变率敏感，并且应变率敏感性取决于应变值。基于应变能函数理论，对该橡胶的一维动态本构方程进行了修改，以描述本文提出的应变和应变率范围内的高应变率实验结果。

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  • 来源
    《Journal of engineering materials and technology》 |2003年第3期|p. 294-301|共8页
  • 作者

    B. Song; W. Chen;

  • 作者单位

    Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721-0119;

    Department of Aerospace and Mechanical Engineering, The University of Arizona, Tucson, AZ 85721-0119;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工程材料学;
  • 关键词

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