基于非线性超声的复合材料疲劳损伤演化的实时预测方法及应用
By using nonlinear ultrasonic technology to detect fatigue damage in aerospace composite materials in real time, establishing a mapping model and embedding a digital twin model, the problem of traditional methods being unable to monitor fatigue damage in composite materials is solved, and real-time, non-destructive characterization of damage and life prediction are realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- EAST CHINA UNIV OF SCI & TECH
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient for real-time and non-destructive monitoring of fatigue damage evolution in aerospace composite materials. Traditional methods are costly, time-consuming, and lack sufficient detection sensitivity, failing to meet the requirements for condition perception and life prediction of aerospace structures.
Nonlinear ultrasonic technology is used to detect ultrasonic guided wave signals in real time during fatigue loading, extract fundamental frequency and harmonic components, calculate nonlinear ultrasonic parameters, establish a mapping model between the parameters and the fatigue damage evolution state, and embed them into a digital twin model for real-time prediction.
This method enables continuous and non-destructive characterization of fatigue damage in composite materials from early initiation to failure, providing a basis for life prediction and health management of composite materials, and breaking through the technical bottleneck of traditional methods.
Smart Images
Figure CN122193430B_ABST