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Numerical Investigation of an Explosive Welding of Ti/Cu Plates Based on a Meshfree Method

Mojżeszko M., Perzyński K., Sionkowski M., Paul H., Madej Ł.

Archives of Metallurgy and Materials

2020

Vol. 65, iss. 2

707--711

Development of a reliable numerical model capturing major physical mechanisms controlling explosive welding and considering properties of all process components i.e. base plate and flyer plate is the goal of the paper. To properly replicate materials behavior under these severe conditions a meshfree approach, namely Smooth Particle Hydrodynamics (SPH), was used to discretize the computational domain. The model is based on the Mie-Gruneisen shock equation of state applied to the Ti/Cu system as a case study. Examples of results in the form of velocity, equivalent stress, equivalent strain, and pressure fields are presented within the paper.

Numerical estimation of the pile toe and shaft unit resistances during the installation process in sands

Konkol J.

Studia Geotechnica et Mechanica

2015

Vol. 37, nr 1

37--44

Numerical simulations of a pile jacking were carried out. A Coupled Eulerian–Lagrangian (CEL) formulation was used to treat with large deformation problems. An Abaqus, a commercial Finite Element Method software suit, was used as a computing environment. The Mohr–Coulomb constitutive model was applied and the Coulomb model of friction was used to describe pile-soil interaction. Calculations were made for three different pile diameters. Toe and shaft unit resistances versus depth for each pile were investigated and plotted. CPT-based solutions were compared with the results of numerical simulations.