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These figures show a relationship between strength of joint and ratio of plate width and plate thickness.
Here, the strength of joint means maximum tensile stress, that is, this point. From these results, we can understand the effects of some factors on joints strength. 1. Joint strength becomes larger with an increase in the ratio of plate width and thickness. 2. Narrower HAZ is effective. 3. Strength of over-match joint becomes larger than even-match joint. Therefore, narrower HAZ and over-match joints are needed for improving joint strength. |