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LiTiP

Author: Institute of Polymer Mechanics

LiTiP LiTiP (Life TimePrediction) is a software tool for the fatigue lifetime prediction ofcomposite laminates under proportional cyclic loading. The part of thesolution algorithm which concerns stress analysis is based on the ClassicalLaminate Theory, while the life prediction is based on the Ply Discountmethod.LiTiP can be used as a low level design tool by engineers and students dueto the following features: - a complicated laminate lay-up is allowed;
- cyclic proportional loads to the laminate are applied;
- only elastic constants and S-N curves for a UD composite are needed asinput data;
- a fatigue lifetime of the laminate is predicted. The failure sequence ofplies in the laminate is calculated. Stresses and strains in plies,stiffness and compliance matrices of the laminate after each damage eventare given. ..