eprintid: 1939
rev_number: 7
eprint_status: archive
userid: 56
dir: disk0/00/00/19/39
datestamp: 2013-11-25 10:19:29
lastmod: 2014-10-09 09:20:26
status_changed: 2013-11-25 10:19:29
type: article
metadata_visibility: show
creators_name: Carpinteri, Alberto
creators_name: Paggi, Marco
creators_id: 
creators_id: marco.paggi@imtlucca.it
title: On the asymptotic stress field in angularly nonhomogeneous materials
ispublished: pub
subjects: TJ
divisions: CSA
full_text_status: none
keywords: Asymptotic analysis; fracture; functionally graded materials; interfaces; multi-material junctions
abstract: The problem of multi-material junctions composed of angularly nonhomogeneous elastic wedges in plane elasticity is addressed. For this new type of grading the governing equation for the Airy stress function is derived and, by applying the eigenfunction expansion method, a fourth-order ODE with nonconstant coefficients for the eigenequation is obtained. The solution to this ODE permits the formulation of an eigenvalue problem similar to that valid for material junctions between homogenous different materials. It is mathematically demonstrated that the angular grading influences the order of the stress-singularity. The potentials of the use of this new class of materials in joining technology are carefully investigated and some illustrative examples are deeply discussed. Comparisons with the corresponding results obtained from homogeneous materials are made.
date: 2005
date_type: published
publication: International Journal of Fracture
volume: 135
number: 1-4
publisher: Springer-Verlag
pagerange: 267-283
id_number: 10.1007/s10704-005-4087-4
refereed: TRUE
issn: 1573-2673
official_url: http://dx.doi.org/10.1007/s10704-005-4087-4
citation:   Carpinteri, Alberto and Paggi, Marco  On the asymptotic stress field in angularly nonhomogeneous materials.  International Journal of Fracture, 135 (1-4).  pp. 267-283.  ISSN 1573-2673      (2005)