Abstract:The paper present results of a numerical modelling of ductile fracture and failure of elements made of 5182H111 aluminum alloy subjected to dynamic traction. The analysis was performed using Johnson-Cook model based ABAQUS software. The infrared thermography was used to quantify deformation localization zones, also to relate the temperature changes of the specimen, continuously recorded by thermography, with the load extension diagram. The aim of the research was to specify and test the mechanical properties during numerical simulation. The experimental test results for the mechanical properties of the studies are presented with a large description of the testing facilities. The test results were used to determine the temperature dependencies of the mechanical properties, yield strength, modulus of elasticity and thermal elongation.