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Effects of Tension–Compression Asymmetry on Bending of Steels
- Source :
- Applied Sciences, Volume 10, Issue 9, Applied Sciences, Vol 10, Iss 3339, p 3339 (2020)
- Publication Year :
- 2020
- Publisher :
- MDPI AG, 2020.
-
Abstract
- Stainless steels (SUS) and dual-phase (DP) steels have tension-compression asymmetry (TCA) in mechanical responses to full loading cycles. This phenomenon can significantly influence sheet metal forming of such metals, however, it is difficult to describe this behaviour analytically. In this research, a novel analytical method for asymmetric elastic-plastic pure bending using the Cazacu&ndash<br />Barlat 2004 asymmetric yield function is proposed. It only uses material parameters in tension along with an asymmetry coefficient related to the yield function. Bending operations of SUS304 and DP980 are investigated as two case studies. In the pure bending for both SUS304 and DP980, moment&ndash<br />curvature diagrams are analytically obtained. Furthermore, linear and nonlinear springback behaviours of SUS304 are analytically investigated. Moreover, using the analytical model as a user-defined material, a numerical model is developed for both steels under pure bending. In the V-bending case of SUS304 with and without TCA effects, the springback behaviours of the material are investigated numerically. In addition, considering friction effects, the analytical method is further modified for predicting springback behaviours in the V-bending of 16 types of SUS304 with various strengths are determined. All the analytical and numerical results have good agreement with those experimental results from literature for validation.
- Subjects :
- Materials science
media_common.quotation_subject
pure bending
02 engineering and technology
Bending
lcsh:Technology
01 natural sciences
Asymmetry
lcsh:Chemistry
springback
Tension compression
0103 physical sciences
V-bending
General Materials Science
Composite material
lcsh:QH301-705.5
Instrumentation
media_common
010302 applied physics
Fluid Flow and Transfer Processes
SUS304
lcsh:T
Tension (physics)
Process Chemistry and Technology
General Engineering
tension–compression asymmetry
021001 nanoscience & nanotechnology
DP980
Yield function
lcsh:QC1-999
Computer Science Applications
Nonlinear system
lcsh:Biology (General)
lcsh:QD1-999
lcsh:TA1-2040
visual_art
Pure bending
visual_art.visual_art_medium
lcsh:Engineering (General). Civil engineering (General)
0210 nano-technology
Sheet metal
lcsh:Physics
Subjects
Details
- ISSN :
- 20763417
- Volume :
- 10
- Database :
- OpenAIRE
- Journal :
- Applied Sciences
- Accession number :
- edsair.doi.dedup.....7fbe5b215fcb9e1b14cf4c0eedea3d66