Damage dependent stress limit model for failure prediction in bulk forming processes

Stress limit, combined with deformation and orientation dependent damages, is proposed as the criterion for failure prediction in bulk forming processes. Dedicatedly designed experiments are carried out to investigate this model. The results verify the existence of the stress limits. The value of st...

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Bibliographic Details
Published inInternational journal of material forming Vol. 4; no. 3; pp. 329 - 337
Main Authors Hora, Pavel, Tong, Longchang, Berisha, Bekim, Karadogan, Celalettin
Format Journal Article
LanguageEnglish
Published Paris Springer-Verlag 01.09.2011
Subjects
CAE) and Design
Complas-Esmc
Computational Intelligence
Computer-Aided Engineering (CAD
Engineering
Machines
Manufacturing
Materials Science
Mechanical Engineering
Processes
Stress limit criterion
Failure prediction
Damage
Complex non-proportional loading
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Summary:Stress limit, combined with deformation and orientation dependent damages, is proposed as the criterion for failure prediction in bulk forming processes. Dedicatedly designed experiments are carried out to investigate this model. The results verify the existence of the stress limits. The value of stress limit can vary in different directions due to the material processing histories. The experiments revealed also strong kinematical hardening behaviours for the investigated material. The constitutive law has to include this effect to evaluate the stresses with sufficient precision.
ISSN:1960-6206
1960-6214
DOI:10.1007/s12289-010-1002-y