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蜂窝结构异面变形动态塑性坍塌力学

樊彦斌 王之栎

樊彦斌, 王之栎. 蜂窝结构异面变形动态塑性坍塌力学[J]. 北京航空航天大学学报, 2012, (11): 1464-1468.
引用本文: 樊彦斌, 王之栎. 蜂窝结构异面变形动态塑性坍塌力学[J]. 北京航空航天大学学报, 2012, (11): 1464-1468.
Fan Yanbin, Wang Zhili. Dynamic plastic collapse mechanical model of honeycomb structures out-plane deformation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1464-1468. (in Chinese)
Citation: Fan Yanbin, Wang Zhili. Dynamic plastic collapse mechanical model of honeycomb structures out-plane deformation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, (11): 1464-1468. (in Chinese)

蜂窝结构异面变形动态塑性坍塌力学

详细信息
  • 中图分类号: V414.6

Dynamic plastic collapse mechanical model of honeycomb structures out-plane deformation

  • 摘要: 在蜂窝结构静态塑性坍塌应力理论计算模型的基础上,建立了蜂窝结构在冲击载荷作用下的动态塑性坍塌应力的理论计算模型.考虑应变率对蜂窝结构动态力学性能的影响,使用Cowper-Symonds模型建立了静态塑性坍塌应力与动态塑性坍塌应力之间的关系;基于薄板弯曲理论,由平均冲击速度得到了应变率的计算公式,进而得出动态塑性坍塌应力关于冲击速度与静态塑性坍塌应力的函数关系.使用LS-DYNA动力学软件模拟了铝合金蜂窝结构在冲击载荷作用下的异面变形,数值计算结果与理论模型计算结果一致.

     

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出版历程
  • 收稿日期:  2011-06-25
  • 网络出版日期:  2012-11-30

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