建築構造用ステンレス鋼オーバーマッチ継手の引張強度特性
大畑 充, 植野 翔太郎, 行方 飛史, 佐藤 茂樹, 岡崎 司, 志村 保美, 渡辺 博久, 南 二三吉
pp. 76_1-76_10
抄録
The tensile test results for welded joiut of Austenitic staiuless steel for buildiug structure SUS304A usiug weldiug wire TS308MoJ show failure in the weld metal and lower teusile strength than base metal, whereas the joints exhibit strength overmatch in weld metal. FE-analytical studies demonstrate that those failure behaviors come from the large difference in uniform elongation between the base metal and the weld metal. The mechanical parameters which should be controlled to ensure a failure in a base metal and tensile strength of a base metal for a tensile specimen of the overmatched joint are proposed.