Abstract
During plastic deformation at high strain rates — such as in case of forging or automobile crash conditions — the mechanical behaviour of metallic materials is influenced by mass inertia forces, an increased strain rate sensitivity and the adiabatic character of the deformation process. Besides, an accurate simulation of the material behaviour needs an adequate consideration of the wave propagation, steeping and reflection phenomena. The parameters of the constitutive equations are determined by a combination of high speed materials testing and FE-simulation of testing process. The geometries are varied by including external notches and internal inclusions. As a further application example, the mechanical behaviour of steel-fibre reinforced copper is studied under impact compressive loading regarding the buckling of the slim fibres within the softer matrix.
Published Version
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