Abstract

During the thermal simulation compression test, the formation of an obvious bulge in the specimen leads to a certain deviation between the calculated and actual values of the true stress. The finite element method was used to simulate the single-pass compression of specimens of 34CrNi3MoV steel and obtain the actual nonuniform deformation of the bulging belly during the compression process, and the results were applied to correct experimental flow curves. The results showed that the deformation conditions had a significant influence on the nonuniformity of the specimen deformation during the compression process, and all the modified flow curves were lower than the original ones. The size of the bulge and the metal flow line in the finite element simulation were consistent with the test results. The load value obtained by using the modified flow curve was similar to the load value measured in the test, which indicated that the modified flow curve was very close to the real flow force curve of the material. The method used to modify the flow force curve is simple and practical.

Details

Title
Data correction and verification of thermal simulation experiments under the influence of bulging belly
Author
Zheng, Bing 1 ; Xu, Dong 2 ; Zou, Zhipeng 2 ; Wang, Yiqun 3 ; Guo, Longxin 4 ; Zhao, Hongyang 5 ; Ju, Dongying 5 

 University of Science and Technology Liaoning, School of Materials and Metallurgy, Anshan, China (GRID:grid.453697.a) (ISNI:0000 0001 2254 3960); Hebei University of Engineering, Technology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Handan, China (GRID:grid.412028.d) (ISNI:0000 0004 1757 5708) 
 Hebei University of Engineering, Technology Innovation Center for High Quality Cold Heading Steel of Hebei Province, Handan, China (GRID:grid.412028.d) (ISNI:0000 0004 1757 5708); Hebei University of Engineering, Whole Processes of High Quality Fastener Application Technology Research Center of Universities in Hebei Province, Handan, China (GRID:grid.412028.d) (ISNI:0000 0004 1757 5708) 
 Henan Zhongyuan Special Steel Equipment Manufacturing Co. Ltd, Technology Center, Jiyuan, China (GRID:grid.412028.d) 
 Hebei Puyang Iron and Steel Co., Ltd., Engineering Research Center for High Toughness Wind Tower Steel of Hebei Province, Handan, China (GRID:grid.412028.d) 
 University of Science and Technology Liaoning, School of Materials and Metallurgy, Anshan, China (GRID:grid.453697.a) (ISNI:0000 0001 2254 3960) 
Pages
16382
Publication year
2023
Publication date
2023
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2870197293
Copyright
© The Author(s) 2023. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.