Development of the multi-axial stress test machine and verification of crystal plasticity model

多轴应力试验机研制及晶体塑性模型验证

• 批准号: 22760092
• 负责人: YOSHIDA Kengo
• 金额: $ 2.5万
• 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: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22760092/
• 关键词: 多軸応力状態; 降伏曲面; 塑性構成則; 材料試験; 電磁バルブ; 多結晶体; 金属宴会; ねじり; 多軸応力試験; 結晶塑性; 尖り点; 金属円管

A multi-axial stress testing machine for thin-walled tubular specimens has been developed in the present study. The test machine is capable of applying axial force, internal pressure and torque to a thin-walled tubular specimen. Using the testing apparatus developed in this study, the plastic deformation behavior under tri-axial stress state can be observed. This experimental evidence observed by this machine would provide meaningful information for validating the constitutive models for metals.

本研究已经开发了用于薄壁管状标本的多轴应力测试机。测试机能够将轴向力，内压和扭矩施加到薄壁的管状标本上。使用本研究中开发的测试仪，可以观察到三轴应激状态下的塑性变形行为。该机器观察到的这个实验证据将提供有意义的信息，以验证金属的本构模型。