Study on method of fatigue damage accumulation under multiaxial block loading - 文章详情页

作者：

Xu, J. (Xu, J..) | Shang, D. (Shang, D..) | Chen, H. (Chen, H..)

收录：

Scopus PKU CSCD

摘要：

Shear　strain-based　multiaxial　fatigue　damage　model　was　used　to　calculate　fatigue　damage.　And,　the　shear　strain-based　multiaxial　fatigue　damage　model　in　combination　with　three　commonly　used　fatigue　damage　accumulation　rules　namely　linear　damage　rule,　damage　curve　approach　and　nonlinear　continues　damage　cumulative　model　for　multiaxial　fatigue　are　used　to　predict　fatigue　life　for　titanium　alloy　BT9　and　GH4169　superalloy　under　multiaxial　block　loading,　the　results　showed　a　good　agreement　with　experiment　life.　Through　comparison　of　predicting　fatigue　damage,　the　results　obtained　showed　that　among　these　three　damage　accumulation　rules　linear　damage　rule　gives　the　best　agreement　with　the　experimental　results　for　titanium　alloy　BT9　under　block　loading　and　damage　curve　approach　gives　the　best　agreement　with　the　experimental　results　for　GH4169　superalloy　under　block　loading.

关键词：

Block loading; Damage accumulation model; Fatigue; Life prediction; Multiaxial

作者机构：

[ 1 ] [Xu, J.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 2 ] [Shang, D.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China
[ 3 ] [Chen, H.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

通讯作者信息：

[Shang, D.]College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

电子邮件地址：

shangdg@bjut.edu.cn

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