Improvement of Deformation of Side Panel Placement Deformation

NIE Guocheng; JIANG Qingshun; CHEN Lin

doi:10.3969/j.issn.1674-6457.2025.09.024

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Journal of Netshape Forming Engineering ›› 2025, Vol. 17 ›› Issue (9) : 241-249. DOI: 10.3969/j.issn.1674-6457.2025.09.024

Improvement of Deformation of Side Panel Placement Deformation

NIE Guocheng, JIANG Qingshun, CHEN Lin^*

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Abstract

The work aims to improve the resistance of the side panel to plastic deformation and to address defects such as dents and distorted light spots caused by plastic deformation during the placement of side panels. Theoretical analysis of the placement state of parts was conducted, and the force model of parts was simplified into a simply supported beam model. Based on this model, the parts were divided into five zones, where the volume of zone V seriously affects the size of deformation defects during placement. Hypermesh+LS-Dyna finite element software was used to analyze the stress and strain values of the three schemes after placement deformation, determine the optimal scheme, and conduct experimental verification. The displacement values of four points in Zone V of three different schemes were extracted to analyze the displacement changes at the four points of the part. Among them, the time displacement maps of the four points in Scheme One had a relatively small fluctuation range, mainly because the material at point A in Scheme One would make soft contact with the safety work platform after being placed, releasing some energy; The extreme values of the curves at points A and C in Scheme Two were both greater than those in Scheme Three, and the stress value at point C in Scheme Two was 179.6 MPa with a larger plastic strain value of 0.083 6, indicating that Scheme Two did not have good energy absorption performance. The extreme value of the point C in Scheme Three was smaller than that in Scheme Two, and it had a smaller stress value of 174.9 MPa and a smaller plastic strain value of 0.059 3, indicating that Scheme Three had good energy absorption performance and was the optimal scheme among the three schemes. In conclusion, the experimental results further validate the accuracy of the simply supported beam model and finite element analysis results, and the research results have reference and guiding significance for the application and study of part placement deformation.

Key words

simply supported beam model / deformation of part placement / finite element analysis / dents / distorted light spots

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NIE Guocheng, JIANG Qingshun, CHEN Lin. Improvement of Deformation of Side Panel Placement Deformation[J]. Journal of Netshape Forming Engineering. 2025, 17(9): 241-249 https://doi.org/10.3969/j.issn.1674-6457.2025.09.024

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