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薄壳大转动、小应变几何非线性分析共旋有限元法 被引量:4

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摘要 基于一致对称化平衡共旋列式理论,将具有转角自由度的优化膜单元与离散Kirchhoff板弯单元组合构成的3结点18自由度三角形线性平壳单元推广到薄壳大转动、小应变几何非线性分析,推导了一致切线刚度矩阵与内力矢量,建立了薄壳大转动、小应变几何非线性共旋有限元方程,采用Newton-Raphson算法结合自动载荷控制技术求解方程.通过环形薄板、顶部开孔的半球形壳和圆柱壳3个典型算例验证了本文方法的准确性.
出处 《中国科学:技术科学》 EI CSCD 北大核心 2012年第11期1295-1304,共10页 Scientia Sinica(Technologica)
基金 国家自然科学基金(批准号:51075208) 江苏省研究生创新计划(批准号:CX07B-162z) 南京航空航天大学博士学位论文创新与创优基金(批准号:BCXJ07-01)资助项目
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参考文献23

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二级参考文献31

  • 1蔡松柏,沈蒲生.大转动平面梁有限元分析的共旋坐标法[J].工程力学,2006,23(A01):69-72. 被引量:28
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