一种层合板受冲击时的分析方法
By enhancing the Lagrange multiplier and elliptic transformation method, and combining finite deformation theory and the principle of virtual work, the complexity and computational difficulty in damage analysis of fiber-reinforced composite laminates are solved, achieving accurate interfacial contact and efficient damage prediction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- WUHAN UNIV
- Filing Date
- 2023-04-19
- Publication Date
- 2026-07-17
AI Technical Summary
Existing fiber-reinforced composite laminates have complex damage and failure modes, traditional failure criteria lack universality, and calculation methods are prone to ill-conditioned calculations and increased computational load.
A method based on enhanced Lagrange multipliers and elliptic transformation is adopted, and interface contact analysis is performed through finite deformation theory and the principle of virtual work. Combined with matrix failure criteria and layered growth criteria, accurate constraints and efficient calculations are achieved.
It achieves precise interface contact constraints when laminates are subjected to impact, avoiding ill-conditioned calculations and a significant increase in computational load, thus improving analysis efficiency and accuracy.
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Figure CN116644626B_ABST