Predictive Simulations of Damage Propagation in Laminated Composite Materials and Structures with LMS Samtech Samcef

摘要: In this paper, the advanced damage analysis of composite materials and structures made continuous fibers embedded in a polymer matrix is addressed. The solution based on LMS Samtech Samcef finite element code, from Siemens PLM Software, which now available NX CAE environment, with specific focus solving non-linear problems for composites. Globally speaking, an implicit solver able to solve quasi-static dynamic problems, comprehensive library structural elements kinematic joints. First, sizing strategy building block approach (pyramid physical virtual tests) recalled. Applied years aerospace industry, it here extended automotive context. approach, knowledge material structure built step by coupon level up final full scale structure. stages pyramid starting are considered, predictions obtained numerical simulations validated test results. code then described. It continuum mechanics, used study progressive failure composites plies at their interface (delamination). models identification procedure these also discussed: very limited number tests results level. shown how information behavior can be upper so applied larger and/or more complex load cases different stacking sequences. good agreement paper between simulation increasing complexity tend demonstrate that as predictive tool evaluation composites, including inter- intra-laminar analysis.