The methodology of predicting analytical fatigue life of automotive body structures using two commercially available computer codes, NASTRAN and NCODE is described. Modal transient durability simulations are improved with use of residual vectors incorporating inertia relief basis functions. Simulations consisting of hundreds of thousand finite elements and hours of road loads are routine.
Application of Modal Transient Dynamics to Calculate Body Fatigue Life
Sae Technical Papers
International Body Engineering Conference & Exposition ; 2001
2001-10-16
Conference paper
English
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