Publication

Experimental and numerical study of heterogeneous material behavior in technological processes at different scales

Abstract

Modern technological processes demand for high performance materials. For such pro- cesses, the relation between microstructure, properties and the macroscopic constitutive response is crucial. To interpret and model heterogeneous metallic materials enabling us to design optimal structural properties it is essential to analyze and understand the inter- actions of different, even competing mechanisms at different length scales. However, the development of various microstructures depending on the chemical composition, load- ing path and loading rate, makes it a difficult task to elaborate directly comprehensive constitutive models. In this regard it is important to develop and identify sophisticated models for specific mechanisms at the relevant scales and additionally for scale bridging. However, an extended and valid understanding of the different mechanisms can only be obtained in a multidisciplinary context, where experimental observations and model concepts are linked strongly. In this regard, the talk will address different experimental and numerical investigations of heterogeneous materials at different length scales, focus- ing in particular on the modeling of microstructures, material instabilities as well as its application in technological production processes.
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