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Updated: Feb 14, 2026

Calibration Procedures for Orthogonal Superposition Rheology
Published on: November 18, 2020
Optimized Calibration Procedure of the Damage Parameters of AA6082-T6 Sheets
Fan Xu1, Hao Zhang2, Shengdun Zhao3
1School of Mechanical Engineering, Jiangsu University, Xuefu Road 301, Zhenjiang 212000, China. xufan-00@126.com.
Abstract:
The constitutive equation of AA6082-T6 sheets is investigated by an extended Rousselier damage model. Previous research is mainly comprised of single-pull test specimens, notched tensile specimens, tensile specimens with a hole, and shear specimens. To decrease the natural material errors, a new specimen is used. In this paper, a clinched joint is regarded as a specimen to calibrate the initial void volume fraction k ω and the shear damage parameter f 0 by using the orthogonal analysis method, which can reduce the simulation times and accuracy. It also reveals that the initial void volume fraction f 0 affects the void volume fraction in the neck and the groove of the clinched joint, and the shear damage parameter k ω affects just the void volume fraction f in the neck of the clinched joint. It checks the force-displacement curve, shape of the clinched joint, and the fracture location, and approves that these damage parameters can describe the deformation process, fracture location, and shape of the clinched joint.
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