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Deformation and Failure of Open‐Cell Foams Made of TRIP‐Steel‐ZrO 2 ‐Composite Materials: Experimental Observations Versus Numerical Simulations
Author(s) -
Sieber T.,
Mühlich U.,
Liedke T.,
Ballaschk U.,
Berek H.,
Aneziris C. G.,
Ehinger D.,
Wolf S.,
Krüger L.
Publication year - 2011
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201100089
Subject(s) - materials science , deformation (meteorology) , composite number , compression (physics) , composite material , powder metallurgy , metal foam , compression test , trip steel , microstructure , porosity , martensite
The aim of the study is to clarify how far it is possible to describe the mechanical behavior of novel TRIP‐Steel/Mg‐PSZ composite open‐cell foam structures using beam networks generated from random tessellations. Conventional compression tests were performed with various foam samples. Furthermore, the deformation of open‐cell composite foams was observed as well by X‐ray computed tomography (XCT). Up to a compressive strain of 20% different stages of deformation could be observed. Respective bulk samples were manufactured by powder metallurgy and tested in order to determine the mechanical properties of the bulk material. Numerical simulations were employed based on the suitable modeling of foams exposed to mechanical loading. The predictions of the simulation are compared with the results of the deformation experiments.