低合金鋼多パスビード溶接試験体の相変態ひずみを考慮したシェル要素による溶接残留応力解析

DOI Web Site

書誌事項

タイトル別名
  • Weld Residual Stress Analysis of Low Alloy Steel Multi Pass Bead on Plate Specimen by Considering Phase Transformation Strain Characteristics and Using Shell Element

抄録

Three dimensional shell elements were used to simulate welding residual stress profiles of multi pass bead on plate specimen. The specimen was low alloy steel SQV2A (JIS G3120) and its thickness was 10 mm. Nine pass bead on plate specimen was fabricated. Gas tungsten arc welding was used to fabricate the specimen. Residual stress profiles were measured with the strain relief method. Temperature histories during the welding process were calculated by using transient heat transfer analysis. Welding residual stress profiles were calculated by using the thermal elastic plastic analysis. Phase transformation occurs during the welding process and phase transformation property was taken into consideration through thermal strain behavior in the analysis. The analysis results by three dimensional shell element show good agreement with those by three dimensional solid element and experimentally measured results.

収録刊行物

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ