蜂窝增强泡沫塑料的静动态力学性能  

Quasi-static and dynamic mechanical properties of honeycomb reinforced plastic foam

作　　者：甄建伟[1] 安振涛[1] 陈玉成[2] 李少波[1] 

机构地区：[1]军械工程学院,石家庄050003 [2]石家庄陆军指挥学院,石家庄050084

出　　处：《复合材料学报》2011年第3期223-228,共6页Acta Materiae Compositae Sinica

摘　　要：采用蜂窝切割和注塑成型两道工序制备了蜂窝增强泡沫塑料试样,并对试样进行了准静态压缩试验。通过试验机压头的压力-位移数据,计算不同参数蜂窝增强泡沫塑料试样的应力-应变曲线。实验结果表明,在相同条件下,所有蜂窝增强泡沫塑料试样的应力均大于蜂窝与泡沫塑料的应力之和。通过分析得出,随着蜂窝孔格边长的减小和试样厚度的增大,复合效应更加明显。在此基础上,建立了蜂窝增强泡沫塑料的仿真模型,并对模型施加压力脉冲载荷,验证了复合材料在动态冲击下,同样具有良好的复合效应。研究表明,这种蜂窝增强泡沫塑料既可以作为低应变率场合的缓冲材料使用,又可以应用于高应变率冲击下的抗爆场合。Honeycomb reinforced plastic foam samples were prepared through honeycomb cutting and injection molding process,and the compression tests of samples were done.Through tests the pressure-displacement date were obtained,then the calculation was conducted to obtain the stress-strain curve of honeycomb reinforced plastic foam samples.The experimental results show that stress of all honeycomb reinforced plastic foam samples is larger than the sum of honeycomb and plastic foam.It is also found that the complex effect of composite material is more apparent with the decrease of the length of the cell and the increase of the thickness of samples.On the basis of quasi-static properties,the simulation model of composite material was built.By applying pressure pulse to the model,the same complex effect was found on the condition of dynamic impact.It is proved that this composite material is suitable not only for lower strain ratio,but also for higher strain ratio.

关 键 词：蜂窝材料 泡沫塑料 力学性能 增强 

分 类 号：TB330.1[一般工业技术—材料科学与工程] TB484.1