Neutral Layer Offset Rule in Straightening Process of S304/Q235 Composite Plate with Different Thickness Ratios

doi:10.12442/j.issn.1002-185X.20211083

Home > Archive>Volume 51, Issue 11, 2022 >4085-4092. DOI:10.12442/j.issn.1002-185X.20211083

Neutral Layer Offset Rule in Straightening Process of S304/Q235 Composite Plate with Different Thickness Ratios
DOI:
                        10.12442/j.issn.1002-185X.20211083
                    
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Affiliation:1.Engineering Research Center of Heavy Mechanical, Ministry of Education, Taiyuan University of Science and Technology, Taiyuan 030024, China;2.School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;3.School of Material Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;4.Technology Center, Taiyuan Heavy Industry Co., Ltd, Taiyuan 030024, China
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Fund Project:National Key Research and Development Project (2018YFA0707305, 2018YFB1307902); Major Special Projects of Science and Technology in Shanxi Province (20181102016); National Natural Science Foundation of China (51675362); Sponsored by Shanxi Scholarship Council of China (2017-081); Key Projects of Shanxi Key R&D Program (201703D111003); Shanxi Graduate Innovation Project (2021Y674)

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Abstract:

To improve the accuracy of the straightening process of S304/Q235 composites, the elastic-plastic deformation and straightening process of the bimetal composite plates were investigated by the Abaqus finite element software. In addition, the neutral layer offset of the bimetal composite plates with different thickness ratios was also analyzed. Results show that the neutral layer offset is dependent on the yield strength and thickness ratio of composite plates. The theoretical calculations, numerical simulations, and experiment results are compared. Then the fitting formula for neutral layer offset is obtained and verified. Additionally, the dynamic change of the neutral layer offset state was analyzed. This research provides the theoretical basis for the establishment of high precision straightening force model.

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[Xing Tong, Liu Cuirong, Ma Lifeng, Li Qiang, Li Yugui, Chu Zhibing, Wang Xiaogang, Gui Hailian. Neutral Layer Offset Rule in Straightening Process of S304/Q235 Composite Plate with Different Thickness Ratios[J]. Rare Metal Materials and Engineering,2022,51(11):4085~4092.]
DOI：10.12442/j. issn.1002-185X.20211083

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Received:December 08,2021
Revised:March 17,2022
Adopted:March 25,2022
Online: December 07,2022
Published: November 30,2022

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