Nonlinear laminate theory is applied for the printed wiring board (PWB) dynamic response analysis. Equations of motion for the nonlinear elastic deformation of the isotropic laminates are derived for the dynamic response of a simply supported PWB. Numerical results are generated for the nonlinear response characterization of the PWB deformation. Comparisons are made between the response of linear and nonlinear systems. Results show that PWB is in large deflection under high acceleration or certain pressure load. Nonlinear theory gives more accurate results for the large deflection than the linear theory does. Besides, lamina stresses are analyzed and illustrated from finite difference computation. The analytical derivation in modal approach and the stress analysis provide the basis for PWB reliability studies, especially the defect and failure induced by the dynamic stress field.

Issue Section:
Technical Papers
Keywords:
Nonlinear Dynamics, Vibration, Printed Wiring Board, Laminated Plate, printed circuits, elastic deformation, laminates, modal analysis, stress analysis, finite difference methods
Topics:
Deflection, Laminates, Printed circuit boards, Stress, Nonlinear dynamics, Stress analysis (Engineering), Deformation, Equations of motion, Resonance
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Copyright © 2002
 by ASME
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