| 粘塑性薄壁管中复合应力波的传播特性研究 |
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| 引用本文： | 李永池,朱林法,胡秀章,袁福平,曹结东.粘塑性薄壁管中复合应力波的传播特性研究[J].爆炸与冲击,2003,23(1):1-5. |
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| 作者姓名： | 李永池 朱林法 胡秀章 袁福平 曹结东 |
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| 作者单位： | 中国科学技术大学力学和机械工程系,安徽,合肥,230027 |
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| 基金项目： | 国家自然科学基金项目(19572064) |
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| 摘 要： | 以本构关系一般理论为基础,导出了计及材料功硬化效应和应变率硬化效应的粘塑性薄壁管的本构关系及管中复合应力波的控制方程,应用有限差分方法研究了在压扭复合冲击载荷作用下粘塑性薄壁管中复合应力波的传播特性与演化规律,分析了复合应力波的耦合效应以及薄壁管中粘塑性参数和功硬化效应对复合应力波传播与演化规律的影响,并对有关现象进行了分析和解释。
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| 关 键 词： | 固体力学 复合应力波 粘塑性 薄壁圆管 |
| 文章编号： | 1001-1455(2003)01-0001-05 |
| 修稿时间： | 2002年8月5日 |
Study on propagation properties of combined stress waves in viscoplastic thin-walled tubes |
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| LI Yong chi,ZHU Lin fa,HU Xiu zhang,YUAN Fu ping,CAO Jie dong.Study on propagation properties of combined stress waves in viscoplastic thin-walled tubes[J].Explosion and Shock Waves,2003,23(1):1-5. |
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| Authors: | LI Yong chi ZHU Lin fa HU Xiu zhang YUAN Fu ping CAO Jie dong |
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| Abstract: | WT5BZ]According to general v is coplastic constitutive relation theory, the constitutive relation and control eq uations of combined stress waves in viscoplastic thin walled tubes are derived. Finite difference method was used to study propagation and evolution propertie s of combined stress waves under combined compressional and torsional loadings. Some new phenomena related to the coupling effects between normal and shear str esses are demonstrated and explained. The effects of plastic work and strain ra te hardening on combined stress waves are also studied. WT5HZ] |
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| Keywords: | WT5BZ]solid mechanics co mbined stress wave viscoplastic thin walled tube |
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