Plasticity and fracture modeling of composite steel Tribond 1200 for crash simulation

Ramaker, K.A. (2016) Plasticity and fracture modeling of composite steel Tribond 1200 for crash simulation.

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Abstract:The objective of this master thesis was to calibrate a hardness-driven material model of composite steel Tribond 1200 for crash simulations. The main focus was the detailed modeling of the materials behavior with solid elements. The model should accurately predict the elastic, plastic and fracture behavior for all hardness values through the thickness. The model must define the material behavior in the case of complex loading experienced during a crash. In this work, a set of mechanical tests were performed, to investigate the mechanical behavior of the material. The test set consisted of in-plane and out-of-plane loading of different size specimens. Further material testing concentrated on strain and hardness measurements and metallography. The differing hardness values through the sheet thickness are used to calibrate a hardness-driven material model. The calibrated hardness-driven material model is validated with an L-profile compression test. This study set out to characterize and model the behavior of an innovative new material, composite steel. This was achieved with a good predictive material model for solid element simulations. It shows the elastic, plastic and fracture properties can be specified by the hardness, allowing for accurate simulations with a hardness-driven modeling approach.
Item Type:Essay (Master)
Faculty:ET: Engineering Technology
Subject:50 technical science in general, 51 materials science, 52 mechanical engineering
Programme:Applied Physics MSc (60436)
Link to this item:http://purl.utwente.nl/essays/71400
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