The intensity of ultrasonic damping increased with the void content of polyimide composite, the relationship between the intensity of ultrasonic damping and the void content as well as mechanical properties of composite was established.
The intensity of ultrasonic damping increased with the void content of polyimide composite, the relationship between the intensity of ultrasonic damping and the void content as well as mechanical properties of composite was established.
摘要利用超声衰减的强度随聚酰亚胺复合材料孔隙率增加而逐渐增加的性质，建立超声衰减的强度与孔隙率之间的关系，再将不同孔隙率与复合材料力学性能之间的关系对应起来。