用改进的Hopkinson测试系统和适合于动载断裂的夹具,测量了结构型吸波复合材料的断裂韧性给出了系统参数(包括载荷-时间特性、应力强度因子响应特性和起裂时间特性)的确定方法.在纯树脂、普通玻璃钢和结构型吸波复合材料的性能测试中发现,纯树脂、普通玻璃钢和结构型吸波复合材料等结构型吸波材料的起裂点的选择具有较大的特殊性,其起裂时间和动态断裂韧性明显高于普通玻璃钢复合材料.这种比较高的裂纹扩展阻力或止裂作用来源于吸波粒子的引入.
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