Inverse calibration of out-of-plane shear anisotropy parameters of sheet metal

Bojan Starman (Author), Tomaž Pepelnjak (Author), Andraž Maček (Author), Miroslav Halilovič (Author), Sam Coppieters (Author)

Abstract

The accurate description of sheet metal forming processes such as blanking, riveting, incremental forming, and ironing strongly depends on understanding the material’s through-thickness shear resistance and plastic behavior. A three-dimensional model of plastic anisotropy is required to capture this behavior, but calibrating the out-of-plane shear parameters is often challenging. Researchers frequently assume isotropy or set the in-plane and out-of-plane shear parameters equal. More advanced approaches use a crystal plasticity model, which also requires calibration based on available material texture data. In this work, we introduce an out-of-plane shear test procedure that combines a macromechanical test with digital image correlation to inversely calibrate the shear anisotropy parameters of the YLD2004-18p yield function. This method efficiently characterizes both in- plane and out-of-plane shear anisotropy in medium-thick sheet metals.

Keywords

plastic anisotropy;shear testing;YLD2004–18p yield function;material identification;digital image correlation;

Data

Language:	English
Year of publishing:	2025
Typology:	1.01 - Original Scientific Article
Organization:	UL FS - Faculty of Mechanical Engineering
UDC:	621
COBISS:	227822851
ISSN:	1879-2146
Views:	32
Downloads:	13
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	plastična anizotropija;strižno testiranje;YLD2004–18p funkcija tečenja;materialna identifikacija;metoda korelacije digitalnih slik;
Embargo end date (OpenAIRE):	2027-02-27
Pages:	20 str.
Volume:	ǂVol. ǂ313
Issue:	[article no.] 113313
Chronology:	May 2025
DOI:	10.1016/j.ijsolstr.2025.113313
ID:	26017342