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热超弹性材料中的空穴生成问题 被引量:7

CAVITATION PROBLEM FOR THERMOHYPERELASTIC MATERIALS
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摘要 研究热超弹性材料中的空穴生成问题 ,讨论了温度对空穴生成的影响 .球体的材料为考虑温度影响的不可压Gent Thomas材料 ,或者说是一种与不可压Gent Thomas材料对应的热超弹性材料 ,得到了在表面死载荷作用下球体中空穴生成时的分叉曲线及临界载荷 ,给出了球体中的应力分布 ,讨论了温度对临界载荷、分叉曲线和应力分布的影响 . Cavitation problem for thermohyperelastic materials and the effect of temperature are studied. The constitutive relation of the sphere is based on one of the thermohyperelastic material corresponding to the incompressible Gent-Thomas material. The bifurcation curves, the critical load and the distribution of stresses for the sphere are obtained. Numerical results indicate that the effect of temperature on the cavitation for the material is obvious.
机构地区 上海大学力学系
出处 《固体力学学报》 CAS CSCD 北大核心 2004年第3期275-278,共4页 Chinese Journal of Solid Mechanics
基金 国家自然科学基金 ( 10 2 72 0 69) 上海市重点学科建设资助
关键词 热超弹性材料 空穴生成 应力分布 临界载荷 分叉曲线 材料力学 thermohyperelastic material, cavitation, distribution of stresses, effect of temperature
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