| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
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| Outline of Final Research Achievements |
If residual stresses of the product can be estimated non-destructively, it is possible to estimate the safe remaining lifetime. We have proposed a non-destructive technique for estimating three-dimensional residual stresses using portable X-ray diffractometers. This study aims to demonstrate the effectiveness of this method for actual joints.
In this study, residual stresses of a friction stir welded plate are estimated using the proposed method. We also worked on improving the estimation accuracy of the proposed method using a welded joint.
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