A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Springback characteristics of arched aluminum alloy gusset plate after stamping forming
https://orcid.org/0000-0001-7239-5599
Abstract The arched gusset joint is a typical joint system for aluminum alloy single-layer shells. Based on the experimental and numerical analyses, this paper investigates the springback characteristics of arched aluminum alloy gusset (AAAG) plate after stamping forming. Firstly, the refined finite element (FE) models are established with ABAQUS/Explicit & Standard and verified against the 3D scanning results of 9 full-scale gusset plates. The good agreement confirms that the FE models are able to predict the springback value of the gusset plate accurately. Subsequently, a detailed parametric analysis is conducted; the results indicate that the springback rate of the AAAG plate rises with the increase of nominal yield strength and gusset plate radius but decreases with the increase of material elastic modulus, stamping camber, gusset plate thickness and opening area ratio of the gusset plate. Finally, the formulae to estimate the springback value of the AAAG plate are proposed by theoretical derivation and regression analysis.
Highlights Stamping forming tests on 9 full-scale aluminum alloy gusset plate are conducted. 3D scanning technology is used to measure the deformed shapes. Numerical models of gusset plates in the stamping forming stage and the springback stage are established in ABAQUS. Parametric analysis of the influencing factors on the springback characteristics of the gusset plate are conducted. Fitting formulae with acceptable accuracy are proposed to estimate the springback value of aluminum alloy gusset plate.
Springback characteristics of arched aluminum alloy gusset plate after stamping forming
https://orcid.org/0000-0001-7239-5599
Abstract The arched gusset joint is a typical joint system for aluminum alloy single-layer shells. Based on the experimental and numerical analyses, this paper investigates the springback characteristics of arched aluminum alloy gusset (AAAG) plate after stamping forming. Firstly, the refined finite element (FE) models are established with ABAQUS/Explicit & Standard and verified against the 3D scanning results of 9 full-scale gusset plates. The good agreement confirms that the FE models are able to predict the springback value of the gusset plate accurately. Subsequently, a detailed parametric analysis is conducted; the results indicate that the springback rate of the AAAG plate rises with the increase of nominal yield strength and gusset plate radius but decreases with the increase of material elastic modulus, stamping camber, gusset plate thickness and opening area ratio of the gusset plate. Finally, the formulae to estimate the springback value of the AAAG plate are proposed by theoretical derivation and regression analysis.
Highlights Stamping forming tests on 9 full-scale aluminum alloy gusset plate are conducted. 3D scanning technology is used to measure the deformed shapes. Numerical models of gusset plates in the stamping forming stage and the springback stage are established in ABAQUS. Parametric analysis of the influencing factors on the springback characteristics of the gusset plate are conducted. Fitting formulae with acceptable accuracy are proposed to estimate the springback value of aluminum alloy gusset plate.
Springback characteristics of arched aluminum alloy gusset plate after stamping forming
https://orcid.org/0000-0001-7239-5599
Abstract The arched gusset joint is a typical joint system for aluminum alloy single-layer shells. Based on the experimental and numerical analyses, this paper investigates the springback characteristics of arched aluminum alloy gusset (AAAG) plate after stamping forming. Firstly, the refined finite element (FE) models are established with ABAQUS/Explicit & Standard and verified against the 3D scanning results of 9 full-scale gusset plates. The good agreement confirms that the FE models are able to predict the springback value of the gusset plate accurately. Subsequently, a detailed parametric analysis is conducted; the results indicate that the springback rate of the AAAG plate rises with the increase of nominal yield strength and gusset plate radius but decreases with the increase of material elastic modulus, stamping camber, gusset plate thickness and opening area ratio of the gusset plate. Finally, the formulae to estimate the springback value of the AAAG plate are proposed by theoretical derivation and regression analysis.
Highlights Stamping forming tests on 9 full-scale aluminum alloy gusset plate are conducted. 3D scanning technology is used to measure the deformed shapes. Numerical models of gusset plates in the stamping forming stage and the springback stage are established in ABAQUS. Parametric analysis of the influencing factors on the springback characteristics of the gusset plate are conducted. Fitting formulae with acceptable accuracy are proposed to estimate the springback value of aluminum alloy gusset plate.
Springback characteristics of arched aluminum alloy gusset plate after stamping forming
Guo, Xiaonong (author) / Xu, Hang (author) / Zeng, Qiang (author) / Pet, Thol (author)
Thin-Walled Structures ; 159
2020-11-09
Article (Journal)
Electronic Resource
English
Mounting process of aluminum gusset plate integrated ceiling
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