| 陈浩然,苏晓风,杨庆生,郑长良.界面对多相介质平均弹性性能和应力场的影响[J].计算力学学报,1994,11(3): |
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| 界面对多相介质平均弹性性能和应力场的影响 |
| The effect of interface on overall average mechanical properties and local stress fields of multi-phase medium materials |
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| DOI：10.7511/jslx19943036 |
| 中文关键词: 多相介质，界面，机械性质／自洽有限元法 |
| 英文关键词:multiphase medium,interface,overall average mechanical properties,self-consistent fi-nite element method, |
| 基金项目:国家自然科学基金 |
| 陈浩然 苏晓风 杨庆生 郑长良 |
| 大连理工大学工程力学研究所 |
| 摘要点击次数: 1877 |
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| 中文摘要: |
| 在建立多相介质夹杂问题的自治模型基础上，应用自治有限元法研究了多相介质的平均弹性性能问题，通过数例讨论了在不同体分比下，界面对多相介质总体平均弹性性能的影响，结果表明，界面厚度对多相介质横向平均剪切模量和横向平均体积模量有明显的影响，而对纵向平均拉伸模量影响不大。为了进一步研究界面破坏特征，本文还分析了多相介质界面区域的应力场。 |
| 英文摘要: |
| A self-consistent finite element method(SCFEM)is presented for the prediction of overallaverage mechanical properties of multiphase composite materials.The method is based on the gen-eralized self-consistent model developed by authors. Numerical results are presented for typicalcomposite materials with different volume fraction and interface thickness. The results show thatthe interface thickness affects the overall average longitudinal shear modulus and trasverse bulkmodulus considerably ,however,influences on the longitudinal Young's modulus slightly. Thepaper is also concerned with the evaluation of local stress fields in the interface region. |
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