CAE解析を用いたアルミ押出し材曲げ破断判定についての考察: アルミ破断ヮーキンググループ活動報告

摘要

The purpose of this study is to improve the prediction accuracy of bending fracture in impact CAE analysis of aluminum beams. In previous report, "the new bending destruction judgment formula" was derived from improvement of Datsko-Yang formula that can judge the bending fracture limit. By applying this judgment formula to the FEM simulation, bending fracture of the corner part was predictable in CAE. In addition, the prediction accuracy of bending fracture was verified in static and dynamic test.%本稿では，大角らの破断判定式のFEMシミュレーシヨン適用手法を提案し，静的と動的試験において破断予測精度の検証を行つた結果，次のような結論を得た.①角稜部の内Rの時刻歴のCAE解析を行うことにより，破断判定式を用いた破断判定が行える.②破断判定式を用いた破断判定は静的，動的のどちらの現象にも適用できる.