Premium
BOUNDARY ELEMENT ANALYSIS OF CRACK INTERSECTION, INITIATION AND GROWTH AT PIN LOADED HOLES
Author(s) -
Blackburn W. S.,
Hall W. S.,
Rooke D. P.
Publication year - 1995
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.1460-2695.1995.tb00919.x
Subject(s) - materials science , boundary element method , structural engineering , enhanced data rates for gsm evolution , stress concentration , finite element method , intersection (aeronautics) , stress (linguistics) , row , geometry , composite material , fracture mechanics , engineering , mathematics , telecommunications , linguistics , philosophy , database , computer science , aerospace engineering
The dual boundary element method for the analysis of cracks in linear elastic materials has been previously generalised by the authors to allow for automatic remeshing when crack tips intersect other cracks or boundaries, and initiation and growth of small cracks at positions of high stress concentration. The new cracks are assumed to result from sudden events such as an overload or the subsequent stress redistribution when cracks intersect other cracks or holes. In this paper a crack at the edge of one hole in a row of pin‐loaded holes is investigated; various values are considered for the stress at which new cracks may initiate. Two rows of aligned or staggered holes are examined also. The spacing between the holes was typical for lines of holes in overlap joints in plates. For the same load transfer between the plates, new cracks are initiated less readily and grow more slowly for a double row of aligned holes than for a single row or for staggered rows.