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本文研究碳-碳复合材料断裂功测试参数对断裂功值的影响,确定了测试碳-碳复合材料断裂功的有关参数,对三种不同碳-碳复合材料:三向正交细编、碳毡增强和半乱纤维模压碳-碳复合材料的断裂功进行了测定,并和石墨、玻璃碳、玻璃和融熔石英的断裂功进行了比较。研究了不同碳-碳复合材料的断裂破坏特征,并指出它们的断裂模式、裂纹传播方式和薄弱环节。
In this paper, the effect of the test parameters of the work of fracture of carbon-carbon composites on the work value of fracture is studied. The parameters of the work of rupture of carbon-carbon composites are determined. Three kinds of carbon-carbon composites: three- The fracture work of felt-reinforced and semi-random fiber-molded carbon-carbon composites was measured and compared with that of graphite, glassy carbon, glass and fused silica. The fracture and failure characteristics of different carbon-carbon composites were studied, and their fracture modes, crack propagation modes and weaknesses were pointed out.