Abstract
Three-dimensional model of closed cell foam based on idealized geometry is developed and used to study its response under quasi-static compression, impact and shock loading. Foams with a wide range of densities and corresponding cell morphologies are modeled. Geometry of the unit cells used to construct the 3-D model is based on experimentally measured cell sizes and cell wall thicknesses. The numerical model is validated against experimentally determined stress vs. strain relationship, depth of indentation, indentation force, total deformation under shock loading etc. A comprehensive insight is obtained about local deformation and failure mechanisms such as cell edge bending, buckling and cell wall tearing. This knowledge can provide critical inputs in the design of foam-based shock absorbers.
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Dey, C., Sahu, S.N., Akella, K. et al. Numerical Prediction of Quasi-Static Compression, Indentation Impact and Shock Loading Behaviour of Aluminium Foam Using Idealized Cell Geometry. J. dynamic behavior mater. 8, 324–339 (2022). https://doi.org/10.1007/s40870-022-00336-9
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DOI: https://doi.org/10.1007/s40870-022-00336-9