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Structural Engineering and Mechanics   Volume 35, Number 3, June20 2010, pages 349-364
Analysis of impact response and damage in laminated composite cylindrical shells undergoing large deformations
Surendra Kumar

Abstract     [Buy Article]
    The impact behaviour and the impact-induced damage in laminated composite cylindrical shell subjected to transverse impact by a foreign object are studied using three-dimensional non-linear transient dynamic finite element formulation. A layered version of 20 noded hexahedral element incorporating geometrical non-linearity is developed based on total Langragian approach. Non-linear system of equations resulting from non-linear strain displacement relation and non-linear contact loading are solved using Newton-Raphson incremental-iterative method. Some example problems of graphite/epoxy cylindrical shell panels are considered with variation of impactor and laminate parameters and influence of geometrical non-linear effect on the impact response and the resulting damage is investigated.
Key Words
    finite element analysis; large deformation; 20 noded layered hexahedral element; polymer matrix composites; laminated shell; impact.
Surendra Kumar: CSIR Centre for Mathematical Modelling and Computer Simulation, NAL Belur Campus, Bangalore-560037, India

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