| 薄壳极值型后屈曲分析的一种有效数值方案 |
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| 引用本文： | 纪多辙,吴连元.薄壳极值型后屈曲分析的一种有效数值方案[J].焦作工学院学报,1993(4). |
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| 作者姓名： | 纪多辙 吴连元 |
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| 作者单位： | 焦作矿业学院基础部，上海交通大学 |
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| 摘 要： | 本文简略讨论了薄壳非线性屈曲有限元分析中传统增量mN-R迭代法能快速收敛的优点和不能跟踪后屈曲平衡路径的原因,并提出了改进方案.算例表明:改进算法在薄壳极值型后屈曲分析中具有较高的计算精度.
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| 关 键 词： | 薄壳的几何非线性有限元 后屈曲 传统的增量法 mN—R迭代法 改进算法 |
A NUMERICAL APPROACH TO INCREASING PRECISION AND EFFICIENCY FOR LIMITE VALUE-BYPE POST-PUCKLING ANALYSIS OF THIN SHELLS |
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| Ji Duozhe.A NUMERICAL APPROACH TO INCREASING PRECISION AND EFFICIENCY FOR LIMITE VALUE-BYPE POST-PUCKLING ANALYSIS OF THIN SHELLS[J].Journal of Jiaozuo Institute of Technology(Natural Science),1993(4). |
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| Authors: | Ji Duozhe |
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| Abstract: | In this paper, the advantage of fast convergency and the reasons in no solved post-buckling equilibrium path when using classical incremental mN-R iterative method of nonlinear buckling finite element analysis of thin shells are briefly discussed. The authors propose the improved project The improved numerical approach is shown good computational accuracy and efficiency in the field of limit value-type post-buckling analysis of thin shells by the numerical cxampls in the present paper. |
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| Keywords: | geometrical nonlinear finite element of thin shell post-buckling classical incremental method mN-R iterative method improved numerical approach |
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