压缩载荷下夹层结构斜坡过渡区域性能分析

建立了泡沫夹层结构斜坡过渡区域的三维(3D)有限元模型,进行了斜坡过渡区域的坡度角分析优化。基于有限元分析软件MSC.Patran/Nastran,建立了考虑斜坡过渡区面板铺层递减的泡沫夹层结构的有限元模型,研究了结构在单轴压缩载荷作用下的力学行为,进一步讨论了坡度角对于夹层结构过渡区域结构强度和稳定性的影响规律。研究结果表明,泡沫夹层结构坡度角在25°~30°时能够达到提高结构承载能力及减轻结构质量的双重目的。

Analysis of Sandwich Structure Ramp Transition RegionUnder Compression Load

A three-dimensional finite element model is established to analyze and optimize the slope angle of
sandwich structure ramp transition region. Based on the finite element analysis software MSC,Patran/ Nastran the finite
element model of sandwich structure considering the decrease of panel layer of transient slope zone. After studying
the structural mechanical behavior formed in uniaxial compression load, the article further discussed the influence of
slope angle for the intensity and stability of regional structure of sandwich structure transition. The results show that
when the foam sandwich structure slope angle is between 25° to 30°,it can improve structure bearing capacity and reduce
the structure weight of dual purpose.