SiO_2空心微球复合材料力学性能的实验研究

本文对三种不同密度的ＳｉＯ_２空心微球／环氧树脂复合材料进行了静态压缩性能的实验测定和断口形貌分析;并对其结构形态与破坏过程作了微观适时观察。实验是在Ｉｎｓｔｒｏｎ材料试验机和带加载台的扫描电镜上进行的。除测得上述材料的弹性常数和抗压强度外;还根据微观观察的结果;对三种材料在压缩载荷作用下不同的破坏形态、变形特点、粘结强度和破坏模式等进行了初步分析和讨论

由Lagrange实验得到酚醛玻璃钢的动态本构方程

介绍由Lagrange实验、分析及拟合，得到未知材料的动态本构方程的方法。实验在轻气炮上进行，测量多点应力历程，经Lagrange分析得到数值本构关系，再拟合得到可供设计计算使用的动态本构方程。给出酚醛玻璃钢受冲击载荷时，一维应变状态下的一个本构方程。方程计算值与实测结果一致

Dynamic constitutive equation of GFRP obtained by Lagrange experiment

The note presents a method of constructing dynamic constitutive equations of material by means of Lagrange experiment and analysis. Tests were carried out by a light gas gun and the stress history profiles were recorded on multiple Lagrange positions. The dynamic constitutive equations were deduced from the regression of a series of data which was obtained by Lagrange analysis based upon recorded multiple stress histories. Here constitutive equations of glass fibre reinforced phenolic resin composite(GFRP) in uniaxil strain state under dynamic loading are given. The proposed equations of the material agree well with experimental results