Measurement of Work Hardening Behavior of Pure Titanium Sheet Using A Servo-Controlled Tube Bulge Testing Apparatus

Journal Article · Wed May 04 04:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3589716· OSTI ID:21516722

Sumita, Takeshi ^[1]; Kuwabara, Toshihiko ^[2]; Hayashida, Yasuhiro ^[3]

---

1. Department of Mechanical Systems Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Nakacho, Koganei-shi, Tokyo 184-8588 (Japan)
2. Division of Advanced Mechanical Systems Engineering, Graduate School of Engineering, Tokyo University of Agriculture and Technology, 2-24-16, Nakacho, Koganei-shi, Tokyo 184-8588 (Japan)
3. Kobe Steel, Ltd., Materials Research Laboratory, 5-5, Takatsukadai 1-chome, Nishi-ku, Kobe, HYOGO 651-2271 (Japan)

Biaxial stress tests of rolled pure titanium sheet (JIS 1, 0.5 mm thick) have been carried out in order to investigate the anisotropic plastic deformation under biaxial tension. Rolled pure titanium sheet was bent and welded to make tubular specimens. Combined tension-internal pressure was applied to the tubular specimens using the servo-controlled tube bulge testing apparatus developed by one of the authors [Kuwabara, T., Yoshida, K., Narihara, K., Takahashi S., Int. J. Plasticity 21 (1), 101-117 (2002)], so that the strain rate ratio, {epsilon}{sub {phi}}:{epsilon}{theta}, in the axial ({phi}) and circumferential ({theta}) directions of the specimen was controlled to be constant. Contours of plastic work at different levels of plastic strain and stress paths under constant strain rate ratios have been observed in the first quadrant of stress space. It is found that the test material exhibits significant differential work hardening behavior with the increase of plastic work.

• OSTI ID: 21516722
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1353; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALLOYS
ANISOTROPY
CALCULATION METHODS
DEFORMATION
ELEMENTS
EQUIPMENT
FINITE ELEMENT METHOD
HARDENING
MATERIALS
MATHEMATICAL SOLUTIONS
MECHANICAL PROPERTIES
METALS
NUMERICAL SOLUTION
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICITY
PLASTICS
POLYMERS
SHEETS
STRAIN HARDENING
STRAIN RATE
STRAINS
STRESSES
SYNTHETIC MATERIALS
TESTING
TITANIUM
TITANIUM ALLOYS
TRANSITION ELEMENT ALLOYS
TRANSITION ELEMENTS