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Damage and failure mechanisms of ductile metals in biaxial experiments with non‐proportional loading paths
Author(s) -
Zistl Moritz,
Gerke Steffen,
Brünig Michael
Publication year - 2018
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201800013
Subject(s) - materials science , fracture (geology) , digital image correlation , scanning electron microscope , composite material , structural engineering , engineering
The paper deals with an experimental series of the biaxial X0‐specimen to study the loading path dependence of ductile damage and fracture under non‐proportional loading. The damage and fracture behavior of ductile metals depend on the stress state, consequently the material deterioration has to be studied experimentally to develop and validate the corresponding material model. Experimentally the specimen surfaces have been monitored by digital image correlation (DIC) while the fracture surfaces have been analyzed by scanning electron microscopy (SEM). The experimental results based on proportional and non‐proportional loading paths clearly show that damage and fracture processes are affected by the loading history.