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Hardening/Softening Plastic Analysis of an Adhesive Joint

Ottosen, Niels Saabye LU and Olsson, Karl-Gunnar LU (1988) In Journal of Engineering Mechanics - ASCE 114. p.97-116
Abstract
Closed-form solutions for the plastic response of a symmetric double-lap joint are presented. The adherents are assumed to behave linear elastically in pure tension, whereas the adhesive is assumed to be in a state of pure shear. The shear stress-strain behavior of the adhesive is approximated by a bilinear curve, and both hardening plasticity approximating ductile adhesive behavior, and softening plasticity approximating brittle adhesive behavior, are considered. The main emphasis is given to the softening behavior, as it includes some particularly intriguing features of joint behavior, e.g., limited ductility, limited bearing capacity, and the occurrence of local failure in the adhesive. For softening plasticity, two fundamentally... (More)
Closed-form solutions for the plastic response of a symmetric double-lap joint are presented. The adherents are assumed to behave linear elastically in pure tension, whereas the adhesive is assumed to be in a state of pure shear. The shear stress-strain behavior of the adhesive is approximated by a bilinear curve, and both hardening plasticity approximating ductile adhesive behavior, and softening plasticity approximating brittle adhesive behavior, are considered. The main emphasis is given to the softening behavior, as it includes some particularly intriguing features of joint behavior, e.g., limited ductility, limited bearing capacity, and the occurrence of local failure in the adhesive. For softening plasticity, two fundamentally different behaviors are identified depending on the joint parameters: one in which no local failure will occur before the bearing capacity of the joint has been completely exhausted, and another where local failure will begin at the boundary of the joint and spread until the softening zone has reached the center of the joint. In the subsequent response, the failed region will remain constant in size. Shakedown considerations are also included. (Less)
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Contribution to journal
publication status
published
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in
Journal of Engineering Mechanics - ASCE
volume
114
pages
97 - 116
publisher
American Society of Civil Engineers (ASCE)
ISSN
1943-7889
language
English
LU publication?
yes
id
8cf2507e-6697-4ee4-bb47-ce1da4f2b429 (old id 1370142)
alternative location
http://www.asce.org/
date added to LUP
2010-09-18 09:24:34
date last changed
2016-11-18 10:25:54
@misc{8cf2507e-6697-4ee4-bb47-ce1da4f2b429,
  abstract     = {Closed-form solutions for the plastic response of a symmetric double-lap joint are presented. The adherents are assumed to behave linear elastically in pure tension, whereas the adhesive is assumed to be in a state of pure shear. The shear stress-strain behavior of the adhesive is approximated by a bilinear curve, and both hardening plasticity approximating ductile adhesive behavior, and softening plasticity approximating brittle adhesive behavior, are considered. The main emphasis is given to the softening behavior, as it includes some particularly intriguing features of joint behavior, e.g., limited ductility, limited bearing capacity, and the occurrence of local failure in the adhesive. For softening plasticity, two fundamentally different behaviors are identified depending on the joint parameters: one in which no local failure will occur before the bearing capacity of the joint has been completely exhausted, and another where local failure will begin at the boundary of the joint and spread until the softening zone has reached the center of the joint. In the subsequent response, the failed region will remain constant in size. Shakedown considerations are also included.},
  author       = {Ottosen, Niels Saabye and Olsson, Karl-Gunnar},
  issn         = {1943-7889},
  language     = {eng},
  pages        = {97--116},
  publisher    = {ARRAY(0xa0682a8)},
  series       = {Journal of Engineering Mechanics - ASCE},
  title        = {Hardening/Softening Plastic Analysis of an Adhesive Joint},
  volume       = {114},
  year         = {1988},
}