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| 拉压性能不同非线弹性材料空间汇交杆系应力应变分析的数值解 | |
| 引用本文： | 刘协权,倪新华. 拉压性能不同非线弹性材料空间汇交杆系应力应变分析的数值解[J]. 军械工程学院学报, 2002, 14(1): 65-68 |
| 作者姓名： | 刘协权 倪新华 |
| 作者单位： | 军械工程学院基础部，军械工程学院基础部 河北 石家庄050003，河北 石家庄050003 |
| 基金项目： | 国家教育部骨干教师基金资助项目 |
| 摘 要： | 以两个指数函数近似表示拉压异性非线弹性材料的应力一应变关系,分析了拉压性能不同非线弹性材料空间汇交杆系,用位移法推导出了应力应变计算的普遍表达式,给出了计算汇交点位移的非线性方程组,编制了通用的数值计算程序,计算准确方便,使这一问题得到了圆满的解决。 |
| 关 键 词： | 拉压异性 非线弹性 空间汇交杆系 应力 应变 |
| 文章编号： | 1008-2956(2002)01-0065-04 |
| 修稿时间： | 2001-09-19 |
The Stress-Strain Numerical Analysis for Strength DifferenceSpace Structure of the Pin-Jointed Bars |
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| LIU Xie - quan,NI Xin - hua. The Stress-Strain Numerical Analysis for Strength DifferenceSpace Structure of the Pin-Jointed Bars[J]. Journal of Ordnance Engineering College, 2002, 14(1): 65-68 | |
| Authors: | LIU Xie - quan NI Xin - hua |
| Affiliation: | LIU Xie - quan,NI Xin - hua Department of Basic Courses,Ordnance Engineering College,Shijiazhuang 050003,China |
| Abstract: | A lot of material have different stress - striain relation in tension and compression, generally the relation is nonlin-ear. In this paper, we use two exponential functions to approximately represent the stress- strain relation of nonlinearly elastic material and analyze strength - difference structure of the space pin-jointed bars. The displacement method is used to derive the universal expression of calculating stress and strain. The group of nonlinear equation for computing displacement of the joint has been given and general computing program has been worked out. This problem has been solved satisfactorily. |
| Keywords: | strength-difference nonlinearly elastic the space structure of pin-jointed bars stress strain |
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