Multiaxial tube expansion test method for accurate material modeling of sheet metals subjected to large biaxial deformation
Research members： Dr. Toshihiko Kuwabara
Research fields： Mechanical engineering
Departments： Institute of Engineering
Keywords： plasticity, large strain, biaxial deformation, sheet metal forming, anisotropy, yield function, constitutive equations, numerical simulation
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Summary
A servo-controlled tension-internal pressure testing machine for metal tubes has been developed. This testing machine is capable of applying arbitrary stress or strain paths to a tubular specimen and measuring stress-strain curves from initial yielding up to fracture, as well as forming limit strains and stresses. The testing machine can be applied to sheet metals by fabricating a tubular specimen from a sheet metal.
Reference articles and patents
1.Hakoyama, T., Kuwabara, T., 2014. Measurement of the forming limit stress curve using a multi-axial tube expansion test with a digital image correlation system, Proc. NUMISHEET 2014, Melbourne, Australia, 6-10 January, 2014, pp. 636-641. (AIP Conference Proceedings, Volume 1567).
2.Sumita, T., Kuwabara, T., 2014. Measurement and material modeling of biaxial work-hardening behavior for pure titanium sheet, Proc. NUMISHEET 2014, Melbourne, Australia, 6-10 January, 2014, pp. 516-519. (AIP Conference Proceedings, 1567).
3.Kuwabara, T. and Sugawara, F., 2013. Multiaxial tube expansion test method for measurement of sheet metal deformation behavior under biaxial tension for a large strain range, Int. J. Plasticity 45, 103-118.
4.Yoshida, K., Kuwabara, T., Narihara, K., Takahashi S., 2005. Experimental verification of the path-independence of forming limit stresses. Int. J. Forming Processes 8 (SI), 283-298.
5.Kuwabara, T., Yoshida, K., Narihara, K., Takahashi S., 2005. Anisotropic plastic deformation of extruded aluminum alloy tube under axial forces and internal pressure. Int. J. Plasticity 21 (1), 101-117.
Contact
University Research Administration Center(URAC),
Tokyo University of Agriculture andTechnology
urac[at]ml.tuat.ac.jp
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