Dynamic Line-Spring Model for the Simplified Elastic Analysis of the Impact Response of a 3-D Surface Crack

Hiroyuki Abe, Yasuhiro Sasage, Masumi Saka

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A dynamic line-spring model is proposed for the simplified analysis of impact response of a part-through surface crack in an elastic plate. Bending of the plate is considered based on Mindlin's theory. Stiffness of the dynamic line-spring is simply evaluated following the static model of Rice and Levy. The procedure for evaluating the dynamic stress-intensity factor K1d is developed. The response of a semielliptical surface crack in a plate subjected to impact loading at its ends is analysed by using the present model. It is found that K1d takes its maximum value at the deepest penetration point of the surface crack and the maximum value is much larger than that in the static case.

Original languageEnglish
Pages (from-to)1817-1823
Number of pages7
JournalTransactions of the Japan Society of Mechanical Engineers Series A
Volume55
Issue number516
DOIs
Publication statusPublished - 1989

Keywords

  • 3-D Surface Crack
  • Dynamic Line-Spring Model
  • Dynamic Stress-Intensity Factor
  • Finite Element Method
  • Fracture
  • Impact Load
  • Mindlin's Theory for Plate Bending

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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