Sensitivity Analysis of Damage Models for Epoxy Resins

ISBN-13: 9783639132434 / Angielski / Miękka / 2009 / 120 str.

Ghayath Al Kassem

Opis

The parameters for damage models are determined viaa reverse engineering approach. The temporal development of the damage is simulated with cyclictension-compression tests, and the parameters of themodel are identified by the matching betweenexperiment and simulation. Moreover, an analysis of sensitivity for the relation between model parameters and damage evolution is to be examined.In addition, a design of experiment (DoE) is accomplished using the programs Ideas, Abaqus,OptiSLang and Cornerstone. The following are the three operational joints:-Background,1. Damage mechanics2. Experimental methods to determine the material-parameters,1. Evaluation methods for cyclic fatigue tests2. Software (IDEAS, ABAQUS, OptiSLang, Cornerstone)3. Models and their implementations-Computations,1. Selection of the material models2. Planning DoE (Cornerstone)3. Executing DoE (OptiSLang, ABAQUS)4. Analyzing DoE (Cornerstone, OptiSLang)-Evaluation,1. Models Suitability for reverse engineering approach2. Parameter identification strategies improvement3. Formulation of alternative models and/or extensionof the experimental database.

O autorze

Ghayath Al Kassem, PhD: obtained a master of science and a PhD
in simulation techiques in mechanical engineering at RWTH
Aachen, Germany. Worked as an R&D engineer at Robert Bosch GmbH,
Stuttgart, Germany. Currently Senior R&D Engineer at Borealis
Polyolefine GmbH - Linz, Austria (Borealis AG - Vienna).