Elastoplastic half-space impact analysis using a novel contact model that accounts for post-yield effects

Big-Alabo, A., Harrison, P. and Cartmell, M. P. (2014) Elastoplastic half-space impact analysis using a novel contact model that accounts for post-yield effects. In: EURODYN 2014: 9th International Conference on Structural Dynamics, Porto, Portugal, 30 June - 2 July 2014,

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Abstract

The impact response of an elastoplastic half-space is investigated using a recently-developed contact model that accounts for post-yield effects in the loading and restitution phases. First, a static analysis is performed to show the validity of the contact model. The impact histories for the indentation depth, velocity of the impactor, and the contact force are then obtained by numerical integration of the governing nonlinear differential equation using the NDSolve integrator available in Mathematica™. The impact responses of both metallic target and a composite sheet are investigated using different restitution models. The simple contact model is shown to allow the impact histories during elastoplastic impact to be computed using just the material and geometric properties of the impact system, without need for any experimentally determined constants.

Item Type:Conference Proceedings
Additional Information:ISBN: 9789727521654
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Harrison, Dr Philip and Cartmell, Prof Matthew
Authors: Big-Alabo, A., Harrison, P., and Cartmell, M. P.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
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