Calibration of fracture locus in scope of uncoupled elastic?plastic-ductile fracture material models
Result description
This paper describes the calibration process for the uncoupled material model of ductile damage designed by Bai and Wierzbicki. This problem has been investigated within the project ?Identification of ductile damage parameters for nuclear facilities?. The project includes material experiments, designing the shape of the samples, and using the samples for calibrating the material constants of selected ductile damage models. The calibration process for the Bai?Wierzbicki material model is based on fifteentested samples corresponding with the literature. In this paper, we discuss some promising modifications of basic calibration approaches for uncoupled models. These modifications are based on variants in the formulation of the target function expressingthe calibration error. The result of the calibration process was verified through FE simulation of a comparison of each specimen with experimental data. A material model with a description of the ductile damage in a wide range of stress
Keywords
Ductile fractureDamage mechanicsFracture locusUncoupled elastic?plastic-damageMaterial experimentsAlternative calibration
The result's identifiers
Result code in IS VaVaI
Alternative codes found
RIV/68407700:21220/14:00217435
Result on the web
http://www.sciencedirect.com/science/article/pii/S0965997813000756
DOI - Digital Object Identifier
Alternative languages
Result language
angličtina
Original language name
Calibration of fracture locus in scope of uncoupled elastic?plastic-ductile fracture material models
Original language description
This paper describes the calibration process for the uncoupled material model of ductile damage designed by Bai and Wierzbicki. This problem has been investigated within the project ?Identification of ductile damage parameters for nuclear facilities?. The project includes material experiments, designing the shape of the samples, and using the samples for calibrating the material constants of selected ductile damage models. The calibration process for the Bai?Wierzbicki material model is based on fifteentested samples corresponding with the literature. In this paper, we discuss some promising modifications of basic calibration approaches for uncoupled models. These modifications are based on variants in the formulation of the target function expressingthe calibration error. The result of the calibration process was verified through FE simulation of a comparison of each specimen with experimental data. A material model with a description of the ductile damage in a wide range of stress
Czech name
—
Czech description
—
Classification
Type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
—
Result continuities
Project
FR-TI2/279: *Ductile damage parameters identification for nuclear power stations
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advances in Engineering Software
ISSN
0965-9978
e-ISSN
—
Volume of the periodical
72
Issue of the periodical within the volume
06/2013
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
14
Pages from-to
95-108
UT code for WoS article
—
EID of the result in the Scopus database
—
Basic information
Result type
Jx - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP
JG - Metallurgy, metal materials
Year of implementation
2014