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Dynamic failure of viscoplastic materials using Taylor-SPH
In viscoplastic materials strain localization always occurs before failure. If the failure is produced by an impact, the problem is more complicated since usually shock waves are involved in the process. Taylor-SPH (TSPH) is a meshfree method suitable to solve the shock waves propagation in solids since it minimizes numerical dispersion and diffusion. It is able to capture shear bands accurately and it avoids the classical tensile instability. In this work, a set of numerical simulations has been carried out using TSPH. Results show that the TSPH method is an accurate tool to capture dynamic shear bands and therefore can be used to model failure of materials under dynamic conditions.
