Low velocity impact response of thick FGM beams with general boundary conditions in thermal field
Low velocity impact response of thick FGM beams with general boundary conditions in thermal field
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DOI：
10.1016/j.compstruct.2013.05.002
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发表时间：
2013-10
影响因子：
6.3
通讯作者：
Y. Kiani;M. Sadighi;S. Salami;M. Eslami
中科院分区：
文献类型：
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作者：
Y. Kiani;M. Sadighi;S. Salami;M. Eslami
研究了具有沿厚度方向分布特性的功能梯度材料梁的低速冲击响应。采用三阶剪切变形梁理论推导了控制方程。采用了适用于梯度材料的赫兹接触定律的修正。在空间域的里兹基解决方案适用于各种平面内和平面外的边界条件。通过四阶龙格-库塔法在时域中完成的方程组的解决方案。商业有限元软件的结果验证了所开发的方法。详细研究了材料梯度、撞击体速度、撞击体质量、边界条件、热环境和撞击位置等参数对材料性能的影响。
Low velocity impact response of an FGM beam with through-the-thickness distributed properties is studied in this paper. Third order shear deformation beam theory is implemented to derive the governing equations. A modification of the Hertz contact law which is suitable for graded materials is adopted. A Ritz-based solution in space domain appropriate for various in-plane and out-of-plane boundary conditions is developed. Solution of the resulted system of equations in time domain is accomplished via the fourth-order Runge–Kutta method. The developed method is validated with the results of commercial finite elements software. The effects of various involved parameters, such as graded property profile, impactor velocity, impactor mass, boundary conditions, thermal environment and impact position are studied in detail.