A PROGRESSIVE QUADRATIC FAILURE CRITERION FOR A LAMINATE

摘要: The application of failure criteria to laminated composites is a critical step in the determination strength and safety point structure under combined loading conditions. Non-homogeneous stresses within may induce complicated scenario whereby one ply at can initiate affect other plies same or neighboring point. After first-ply failure, stiffness reduced by either matrix fiber failures. laminate evaluated again see if carry an additional load. This ply-by-ply analysis progresses until ultimate reached. process be extended structures subjected non-homogeneous where both point-to-point analyses are progressively applied.