基于Ansys的冲击载荷下蜂窝夹芯板的动力学响应

以四边固支铝基蜂窝夹芯板为研究对象,针对蜂窝夹芯板胞元中添加颗粒的位置及填充量对动力学响应的影响进行了Ansys数值模拟计算,并比较了不同条件下的蜂窝夹芯板应力应变值.结果表明:在冲击载荷下,蜂窝夹芯板胞元中添加颗粒后能很好地减小应力应变值,增大蜂窝夹芯板的吸能效果.颗粒填充范围为0.2~0.25,颗粒填充数为两粒时,蜂窝夹芯板的应力应变值最小,吸能效果最佳,过多的填充不仅不具有更好的吸能效果,反而会激振蜂窝夹芯板.

Dynamic Response of Honeycomb Sandwich Panel Under Impact Loading Based on Ansys

For the aluminum honeycomb sandwich panel with SCSC edge supports， the dynamic response numerical calculations were conducted using the Ansys by considering the range and quantity of the filling particles in cell of honeycomb sandwich panel. The stress and strain of the honeycomb sandwich panel in different conditions were further compared. The result indicates that filling particles in the panel cell can well reduce the stress and strain and increase the energy absorption effect. When the range of filling particles is from 0.2 to 0.25 and the quantity of filling particles is 2， the stress and strain of honeycomb sandwich panel are minimal and the effect of the energy absorption is best. Too much filling particles do not have a better energy absorption effect but conversely can shock the honeycomb sandwich panel.