DAMAGE PREDICTION OF AXIALLY CRUSHED CORRUGATED FRUSTA | ||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||
| Article 47, Volume 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., May 2008, Pages 103-116 PDF (926.09 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/amme.2008.39280 | ||
| Author | ||
| YOUNES M.M. A. | ||
| Egyptian Armed Forces. | ||
| Abstract | ||
| ABSTRACT Failure analysis of corrugated shells requires knowledge of the behavior of a shell structure as it is crushed. Investigation of this problem is presented in this paper. The axial crushing of a right circular axi-symmetric corrugated frusta subjected to quasistatic compression is numerically studied. The finite element code ABAQUS/Explicit was employed to predict the crushing behavior and the effect of different geometric parameters required to enhance the energy absorption capability of corrugated frusta. The main objectives are to establish the load-deflection response of the axi-symmetric corrugated frusta and to describe the overall deformation of the frusta, since this data greatly affect the energy absorbed by frustum models. The present simulation also provides a simple demonstration of the capabilities of ABAQUS/Explicit for modeling contact problems between deformable bodies and rigid, impenetrable surfaces. Results showed that as the number of corrugations along a frustum generator increases, the amount of absorbed energy significantly increases, however the collapse modes of those corrugated frusta are qualitatively similar. The influence of varying the axial length-to-thickness ratio and the corrugation angle on the crashworthiness performance of frustum models are predicted and the obtained finite element results are depicted and assessed. | ||
| Keywords | ||
| Finite Element; Corrugated frusta; axial loading; energy absorption; Collapse | ||
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