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导出了复合固体推进剂材料声发射(AE)累积能量与裂纹扩展间的线性关系,建立了基于声发射累积能量的损伤演化模型。单轴拉伸声发射实验结果验证了该演化模型的正确性,可用于复合固体推进剂材料损伤的研究。
The linear relationship between the cumulative energy of AE and the crack propagation is deduced. The damage evolution model based on the cumulative energy of AE is established. Uniaxial tensile acoustic emission experimental results verify the correctness of the evolution model can be used for composite solid propellant material damage research.