Finite element nonlinear random response of composite plates to acoustic and thermal loads applied simulatiously

摘要

The nonlinear random response of composite plates to the simultaneously appoied, combined acoustic/thermal loads are investigated. The finite element formulation for the nonlinear random response is developed. The three-node Mindlin plate element with improved transverse shear(MIN3) is extended and employed. The acoustic load can be normal incidence or grazing incidence. Examples include effect of thermal load, antisymmetric cross-ply laminates, skewed panel and non-uniform temperature, grazing incidence wave, and initial imperfection.