This paper studies the quasi-static and dynamic mechanical behaviors of a commercial corrugated sandwich panel under combined shear-compressive loading by using a modified MTS machine and the so-called Rotatable Hopkinson Bar (RHB) loading system. Particular focus is placed on identifying the differences of large deformation behaviors of corrugation panels between uniaxial compression and combined shear-compression, especially the influences of shear-compressive loading angle and loading rate on the stress-displacement curves and the deformation modes. It is found that the normal stress decreases with the loading angle, while the shear stress increases with it for both the quasi-static and dynamic loadings. Three deformation patterns are identified for five different loading angles from 0^o (corresponding to uniaxial compression) to 50^o. A positive loading rate effect is found for the initial collapse of corrugated panels, which is contributed to the inertia effect within corrugation buckling. The strength of the panels after initial collapse shows a negative loading rate effect, which may be due to the strain softening behavior of base material (5754-H48 Aluminum alloy) at impact loading.

本文通过使用改进的 MTS 机器和所谓的可旋转霍普金森杆 (RHB) 加载系统，研究了商用波纹夹芯板在剪切-压缩组合载荷下的准静态和动态力学行为。重点研究了单轴压缩和剪-压联合作用下波纹板大变形行为的差异，特别是剪切-压缩加载角度和加载速率对应力-位移曲线和变形模式的影响。发现法向应力随着加载角度的增加而减小，而对于准静态和动态加载，剪应力都随着加载角度的增加而增加。从 0 ^o到五个不同的加载角度识别了三种变形模式（对应于单轴压缩）到 50 ^o。对于波纹板的初始坍塌，发现了正加载率效应，这有助于波纹屈曲内的惯性效应。初始坍塌后面板的强度显示出负加载率效应，这可能是由于基材（5754-H48 铝合金）在冲击载荷下的应变软化行为。