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Structural Engineering and Mechanics Volume 35, Number 3, June20 2010 , pages 349-364 DOI: https://doi.org/10.12989/sem.2010.35.3.349 |
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Analysis of impact response and damage in laminated composite cylindrical shells undergoing large deformations |
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Surendra Kumar
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| Abstract | ||
| 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. | ||
| Address | ||
| Surendra Kumar: CSIR Centre for Mathematical Modelling and Computer Simulation, NAL Belur Campus, Bangalore-560037, India | ||