溶接学会論文集
Online ISSN : 2434-8252
Print ISSN : 0288-4771
溶接と接着を併用したあて板継手の弾性応力性状に及ぼす母板減厚の影響
廣畑 幹人藤村 直樹
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ジャーナル フリー

2020 年 38 巻 3 号 p. 183-192

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For investigating influence of thickness reduction in base plate on elastic stress state of patch plate joint by combination of welding and bonding, a series of experiment and analysis were conducted. A static tensile loading experiment was carried out. The thickness reductions of 2.5mm were applied to the both top and bottom surfaces of base plate with a thickness of 12mm. The thickness-reduced parts of base plate were covered by the patch plates with a thickness of 6mm. The joining methods of patch plates were only fillet welding, only bonding and the combination of welding and bonding. The load-carrying effect at the center of joint was improved by the combination of welding and bonding compared to the case with only welding. However, the stress reduction effect around the welded part could not be clearly confirmed from the experimental result. 2D elastic analysis was performed for simulating the experiment and examining the stress reduction effect around the welded part in detail. Furthermore, the influence of degree of thickness reduction in base plate on the stress state around the welded part was investigated. The results indicated that the stress reduction effect by the combination of welding and bonding was larger around the weld root rather than the weld toe.

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