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Dynamic response of pre-stressed fibre metal laminate (FML) circular cylindrical shells subjected to lateral pressure pulse loads

机译:承受侧向压力脉冲载荷的预应力纤维金属层压板(FML)圆柱壳的动力响应

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摘要

Dynamic response of fiber metal laminate cylindrical shells subjected to initial combined axial load and internal pressure were studied in this paper. First order shear deformation theory (FSDT) was utilized in the shell's equilibrium equations and strain-displacement relations were based on Love's first approximation theory. Equilibrium equations for buckling, free and forced vibration problems of the shell were solved using Galerkin method. The influences of FML parameters such as material properties lay up, Metal Volume Fraction (MVF), fiber orientation and initial stresses on dynamic response were investigated. The results were indicated that the FML lay up, has a significant effect on natural frequencies as well as transient dynamic response with respect to various values of MVF as well as pre-stress.
机译:研究了纤维金属叠层圆柱壳在初始轴向载荷和内部压力作用下的动力响应。一阶剪切变形理论(FSDT)被用于壳的平衡方程中,并且应变-位移关系基于Love的一阶近似理论。使用Galerkin方法求解了壳体的屈曲,自由振动和强迫振动问题的平衡方程。研究了FML参数(例如材料特性,金属体积分数(MVF),纤维取向和初始应力)对动态响应的影响。结果表明,FML叠层对固有频率以及相对于各种MVF值和预应力的瞬态动态响应具有显着影响。

著录项

  • 来源
    《Composite Structures》 |2010年第6期|1308-1317|共10页
  • 作者单位

    Centre of Excellence for Research in Advanced Materials and Structures, Faculty of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran Faculty of Engineering, Kingston University, London, UK;

    Aerospace Research Centre, Malek Ashtar University of Technology, Tehran, Iran;

    Centre of Excellence for Research in Advanced Materials and Structures, Faculty of Mechanical Engineering, K.N. Toosi University of Technology, Tehran, Iran;

    Department of Applied Mechanics, IIT Delhi, New Delhi, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    hybrid composites; vibration; shell theory; pre-stress; FML; pulse;

    机译:混合复合材料;振动;壳理论预应力FML;脉冲;

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