Because of the advantages of high specific strength and high specific stiffness, carbon fiber reinforced plastics (CFRP) have been the most ideal materials in the field of civil aviation. Cure monitoring in manufacturing process and damage identification in service stage of CFRP are always hot topics. The Semi-Analytical Finite Element (SAFE) method and micromechanical model are employed to analyse the propagation characteristics of the Lamb-like waves in a continuous flat aluminium plate attached to a viscoelastic unidirectional CFRP in semi-infinite half-space. Then the vacuum bag moulding process of prepregs is monitored using Fiber Bragg Grating (FBG) and piezoelectric sensors encapsulated in Stanford Multiactuator-Receiver Transduction (SMART) Layer. The calculated energy velocities and attenuations of guided waves show the same trends with the numerical results while curing. After the CFRP is demoulded, the damage identification experiments are carried out. By continuing to use the sensor network embedded in the manufacturing phase, the artificial damages can be precisely located. The results demonstrated that the life-cycle monitoring of CFRP can be achieved effectively by the piezoelectric sensors network.

由于高比强度和高比刚度的优势，碳纤维增强塑料（CFRP）已成为民航领域最理想的材料。CFRP制造过程中的固化监控和CFRP服务阶段的损坏识别一直是热门话题。采用半解析有限元（SAFE）方法和微力学模型分析了半无限半空间中附着于粘弹性单向CFRP的连续平板铝板上的类兰姆波的传播特性。然后，使用光纤布拉格光栅（FBG）和封装在Stanford Multiactuator-Receiver Transduction（SMART）层中的压电传感器监控预浸料的真空袋成型过程。在固化过程中，计算出的能量速度和导波衰减显示出与数值结果相同的趋势。CFRP脱模后，进行损伤识别实验。通过继续使用制造阶段嵌入的传感器网络，可以精确定位人为损坏。结果表明，压电传感器网络可以有效地实现CFRP的生命周期监测。