NDLI: Forming Simulation Considering the Differential Work Hardening Behavior of a Cold Rolled Interstitial-Free Steel Sheet

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Forming Simulation Considering the Differential Work Hardening Behavior of a Cold Rolled Interstitial-Free Steel Sheet

Content Provider	Semantic Scholar
Author	Ichikawa, Kazuhiro Kuwabara, Toshihiko Coppieters, Sam
Copyright Year	2014
Abstract	The multiaxial plastic deformation behavior of a cold rolled interstitial-free steel sheet with a thickness of 0.65 mm was measured using a servo-controlled multiaxial tube expansion testing machine for the range of strain from initial yield to fracture. Tubular specimens were fabricated from the sheet sample by roller bending and laser welding. Many linear stress paths in the first quadrant of stress space were applied to the tubular specimens to measure the contours of plastic work in stress space up to an equivalent plastic strain of 0.289 along with the directions of plastic strain rates. The test material exhibited differential hardening (DWH). A material modeling method for reproducing the DWH in a finite element simulation has been developed. Hydraulic bulge forming simulation results based on the DWH model had a closer agreement with the experimental results than those calculated using the isotropic hardening models with selected yield functions.
Starting Page	56
Ending Page	61
Page Count	6
File Format	PDF HTM / HTML
DOI	10.4028/www.scientific.net/KEM.611-612.56
Volume Number	611-612
Alternate Webpage(s)	https://core.ac.uk/download/pdf/34602671.pdf
Alternate Webpage(s)	https://doi.org/10.4028/www.scientific.net%2FKEM.611-612.56
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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