Probabilistic finite element analysis of fatigue life of additively manufactureclasp

Kento Odaka, Naoki Takano, Hideo Takizawa, Satoru Matsunaga

研究成果: Article査読

抄録

The present study was aimed to develop a probabilistic finite element method (FEM) that predicts the variability in the fatigue life of additively manufactured clasp so that it can be used as a virtual test in the design phase before manufacturing. Titanium alloy (Ti-6Al-4V) clasp with integrated chucking part, which was designed for experimental fatigue test to validate the computational method, was investigated. To predict the lower bound, an initial spherical defect was assumed in the region where stress concentration was predicted. The Smith-Watson-Topper (SWT) method, Bäumel & Seeger rule, elasto-plastic FEM, and zooming FEM were used. The influence of assumed initial defect on the fatigue life was significant, and the large variability in the fatigue life was predicted. This study demonstrated that the proposed practical computational method can simulate the large variability in the fatigue life of titanium alloy clasp, which is useful in its design before manufacturing.

本文言語English
論文番号dmj/2021-174
ページ(範囲)286-294
ページ数9
ジャーナルDental Materials Journal
41
2
DOI
出版ステータスPublished - 2022

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 歯科学(全般)

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