Development of material testing technique for polycrystalline metals subjected to multiaxial stresses

• Project/Area Number: 24760098
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Production engineering/Processing studies
• Research Institution: Yamagata University
• Principal Investigator: YOSHIDA Kengo 山形大学, 理工学研究科, 助教 (70436236)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2012: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
• Keywords: 塑性変形 / 多結晶金属 / 塑性変形挙動

Research Abstract

Experimental technics for measuring the work hardening behavior was developed using the axial force-internal pressure-torsion type multiaxial stress testing machine. Work hardening behavior of a material subjected to variety of one stress component was also observed. The following conclusions were derived.
Multiaxial stress test of A3003 revealed that the work hardening behavior depends not only on the accumulated plastic strain but also on the applied stress state. Uniaxial tension/compression and simple shear test of AZ31 showed that the work hardening behavior is drastically affected by the stress state provided that deformation twining is activated.

Research Products

• [Journal Article] Work-hardening behavior of polycrystalline aluminum alloy under multiaxial stress paths (2014)
  • Author(s): Yoshida, K., Ishii, A., Tadano, Y.
  • Journal Title: International Journal of Plasticity Volume: 53 Pages: 17-39
  • DOI: 10.1016/j.ijplas.2013.07.003
  • Peer Reviewed
• [Journal Article] 2014. Work-hardening behavior of polycrystalline aluminum alloy under multiaxial stress paths
  • Author(s): Yoshida, K., Ishii, A., Tadano, Y
  • Journal Title: International Journal of Plasticity Volume: 53 Pages: 17-39
  • Peer Reviewed
• [Presentation] Stress-strain relations of aluminum alloy tubular specimen subjected to axial load-internal pressure-torsion (2014)
  • Author(s): Yoshida, K., Ishii, A., Tadano, Y
  • Organizer: Plasticity 2014
  • Place of Presentation: Freeport, Bahamas
  • Year and Date: 2014-01-03
• [Presentation] Stress-strain relations of aluminum alloy tubular specimen subjected to axial load-internal pressure-torsion (2014)
  • Author(s): Yoshida, K., Ishii, A, Tadano, Y.
  • Organizer: Plasticity 2014
  • Place of Presentation: Grand Lucayan Resort (Bahamas)
• [Presentation] 軸力およびねじりの反転負荷を受けるAZ31Bの塑性変形挙動 (2013)
  • Author(s): 浅野瑞, 吉田健吾
  • Organizer: 第64回塑性加工連合講演会講演論文集
  • Place of Presentation: 大阪,(185-186)
  • Year and Date: 2013-11-03
• [Presentation] 多軸応力を受けるfcc金属の加工硬化挙動 (2013)
  • Author(s): 吉田健吾, 石井敦達, 只野裕一
  • Organizer: 第64回塑性加工連合講演会講演論文集
  • Place of Presentation: 北九州,(421-422)
  • Year and Date: 2013-11-02
• [Presentation] 軸力およびねじりの反転負荷を受けるAZ31Bの塑性変形挙動 (2013)
  • Author(s): 浅野瑞,吉田健吾
  • Organizer: 第64回塑性加工連合講演会講演論文集
  • Place of Presentation: 大阪大学
• [Presentation] 多軸応力負荷を受けるA3003の塑性変形挙動 (2012)
  • Author(s): 石井敦達, 吉田健吾
  • Organizer: 第63回塑性加工連合講演会講演論文集
  • Place of Presentation: 北九州,(81-82)
  • Year and Date: 2012-11-04
• [Presentation] 多軸応力負荷を受けるA3003の塑性変形挙動 (2012)
  • Author(s): 石井敦達，吉田健吾
  • Organizer: 第63回塑性加工連合講演会講演論文集
  • Place of Presentation: 北九州市