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

多晶金属多轴应力材料测试技术的发展

• 批准号: 24760098
• 负责人: YOSHIDA Kengo
• 金额: $ 2.91万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760098/
• 关键词: 塑性変形; 多結晶金属; 塑性変形挙動

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.

利用轴向力-内压-扭转式多轴应力试验机开发了测量加工硬化行为的实验工艺。还观察了材料在不同应力分量作用下的加工硬化行为。A3003的多轴应力试验表明，加工硬化行为不仅与累积塑性应变有关，而且与施加的应力状态有关。AZ31的单轴拉伸/压缩和单向剪切试验表明，在变形孪晶被激活的情况下，加工硬化行为受应力状态的影响很大。

项目成果

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

AZ31B 承受反向轴向和扭转载荷时的塑性变形行为

• 发表时间: 2013
• 作者: 浅野瑞;吉田健吾
• 通讯作者: 吉田健吾

多軸応力を受けるfcc金属の加工硬化挙動

FCC 金属在多轴应力作用下的加工硬化行为

• 发表时间: 2013
• 作者: 吉田健吾;石井敦達;只野裕一
• 通讯作者: 只野裕一

Stress-strain relations of aluminum alloy tubular specimen subjected to axial load-internal pressure-torsion

轴向载荷-内压-扭转铝合金管状试件的应力-应变关系

• 发表时间: 2014
• 作者: Yoshida;K.;Ishii;A.;Tadano;Y
• 通讯作者: Y

多軸応力負荷を受けるA3003の塑性変形挙動

A3003在多轴应力加载下的塑性变形行为

• 发表时间: 2012
• 作者: 石井敦達;吉田健吾
• 通讯作者: 吉田健吾

Work-hardening behavior of polycrystalline aluminum alloy under multiaxial stress paths

• DOI: 10.1016/j.ijplas.2013.07.003
• 发表时间: 2014-02
• 期刊: International Journal of Plasticity
• 影响因子: 9.8
• 作者: Kengo Yoshida;Asato Ishii;Y. Tadano