Development of High Precision System of Neutron Residual Stress Measurement

高精度中子残余应力测量系统的研制

• 批准号: 07555345
• 负责人: TANAKA Keisuke
• 金额: $ 1.41万
• 依托单位: Nagoya University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555345/
• 关键词: Neutron stress measurement; Residual stress; X-ray stress measurement; Welding; Composites; Phase stress; Ceramics; 疲労

1.A new system for the measurement of the three-dimensional distribution of residual stresses by neutron diffraction was developed in JAERI.2.The diffraction elastic constants of structural steels were determined by measuring the strain due to the applied stress. The experimental results agreed well with the prediction by Kroner model.3.The distribution of the bending stress in Silicon nitride was successfully measured by the system.4.The phase stress in each phase of SiC particulate reinforced aluminum alloy due to the applied stress increased linearly with the applied stress. The measured stresses agree with the prediction based on self consistent model.5.The residual stress distribution in plastically bent specimen was measured by the neutron method.6.The neutron method was applied to measure the residual stress distribution near the socket welded joints and butt welded joints. The results give useful information for analyzing the built-up mechanisms of residual stresses.

1.JAERI开发了一种通过中子衍射测量残余应力三维分布的新系统。2.通过测量施加应力产生的应变来确定结构钢的衍射弹性常数。实验结果与Kroner模型的预测相符。3.系统成功测量了氮化硅中弯曲应力的分布。4.SiC颗粒增强铝合金中各相由于外加应力而产生的相应力随外加应力线性增加。实测应力与基于自洽模型的预测相符。5.采用中子法测量塑性弯曲试件的残余应力分布。6.采用中子法测量承插焊接头和对接焊缝附近的残余应力分布。结果为分析残余应力的形成机制提供了有用的信息。

项目成果

秋庭 義明: "SCS-6/Ti-15-3複合材料のX線残留応力測定" X線材料強度に関するシンポジウム講演論文集. 31. 59-64 (1995)

Yoshiaki Akiba：“SCS-6/Ti-15-3复合材料的X射线残余应力测量”X射线材料强度研讨会论文集31. 59-64（1995）。

林 眞琴: "中性子回折による炭素鋼配管突合わせ溶接継手の残留応力" 材料. 45. 772-778 (1996)

Makoto Hayashi：“通过中子衍射测定碳钢管对接焊缝的残余应力”材料 45. 772-778 (1996)。

田中 啓介: "中性子回折法による残留応力の測定" 日本材料学会第116回X線材料強度部門委員会資料. 116. 24-47 (1996)

Keisuke Tanaka：“通过中子衍射法测量残余应力”日本材料学会X射线材料强度分部委员会第116届材料116. 24-47（1996）。

秋庭 義明: "SiC粒子強化アルミニウム合金複合材料の中性子応力測定" 日本材料学会第32回X線材料強度に関するシンポジウム講演論文集. 161-166 (1996)

Yoshiaki Akiba：《SiC颗粒增强铝合金复合材料的中子应力测量》日本材料学会第32届X射线材料强度研讨会论文集161-166（1996）。

林眞琴: "中性子回折による炭素鋼配管突合わせ溶接継手の残留応力" 材料. 45・7. 772-778 (1996)

Makoto Hayashi：“通过中子衍射研究碳钢管对接焊缝的残余应力”材料45・778（1996）。