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THE USE OF A NEW LINE‐SPRING SHELL ELEMENT FOR ELASTIC SURFACE CRACK ANALYSIS
Author(s) -
Langre E. de,
Ebersolt L.
Publication year - 1987
Publication title -
fatigue and fracture of engineering materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.887
H-Index - 84
eISSN - 1460-2695
pISSN - 8756-758X
DOI - 10.1111/j.1460-2695.1987.tb01157.x
Subject(s) - shell (structure) , spring (device) , intersection (aeronautics) , finite element method , surface (topology) , structural engineering , stress intensity factor , plane (geometry) , line (geometry) , element (criminal law) , fracture mechanics , materials science , engineering , geometry , mathematics , composite material , political science , law , aerospace engineering
In this paper, the Line‐Spring concept developed by Rice and Levy[l] is used to build a new elastic surface cracked shell element in the general purpose Finite Element code CASTEM 2000. The implementation is described and an energy release rate technique is proposed to arrive at more accurate Stress Intensity Factor values at the crack front‐free surface intersection. A comparison with existing accepted numerical solutions is made on various plane and cylindrical configurations and a discussion on the applicability of the model is presented.