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The boundary element analysis of cracked stiffened sheets, reinforced by adhesively bonded patches
Author(s) -
Salgado N. K.,
Aliabadi M. H.
Publication year - 1998
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/(sici)1097-0207(19980530)42:2<195::aid-nme354>3.0.co;2-o
Subject(s) - boundary element method , structural engineering , discretization , adhesive , materials science , finite element method , composite material , robustness (evolution) , boundary value problem , reciprocity (cultural anthropology) , shear (geology) , engineering , mathematics , mathematical analysis , psychology , social psychology , biochemistry , chemistry , layer (electronics) , gene
This paper presents a formulation based on the Dual Boundary Element Method and on the Dual Reciprocity Method for the analysis of thin cracked metal sheets to which thin metal patches and stiffeners are adhesively bonded. The stiffened cracked sheet is modelled with the Dual Boundary Element Method. Adhesive shear stresses are modelled as action–reaction body forces exchanged by the sheet and patches. The Dual Reciprocity Method is used to avoid the discretization of the patches attachment domain into internal cells. Several examples are presented to demonstrate the efficiency and robustness of the method developed. The examples include sheets with embedded or edge cracks, stiffened or not, to which single or double patches are adhesively bonded. © 1998 John Wiley & Sons, Ltd.