NDLI: Determining the thermomechanical characteristics of the separation process

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Use of structural components of specific work of internal forces for estimating the strength of viscoelastic structures in local stress concentration regions

Scheme of creep experiments in nonlinear theory of viscoelasticity taking account of structural changes

Determining the thermomechanical characteristics of the separation process

Differentiation of energy functionals in the problem on a curvilinear crack with possible contact between the shores

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L. A. Galin seminar in continuum mechanics under the supervision of V. M. Alexandrov, V. N. Kukudzhanov, and A. V. Manzhirov

Mechanics of Solids : Volume 42, Issue 5, October 2007

Mechanics of Solids : Volume 42, Issue 4, August 2007

Mechanics of Solids : Volume 42, Issue 3, June 2007

Mechanics of Solids : Volume 42, Issue 2, April 2007

Mechanics of Solids : Volume 42, Issue 1, February 2007

Determining the thermomechanical characteristics of the separation process

Content Provider	Springer Nature Link
Author	Glagolev, I. A. Markin, Yu. G.
Copyright Year	2007
Abstract	The crack growth condition was obtained in [1, 2] from energy considerations and holds for arbitrary nonlinearly elastic materials. This condition is reduced to determining the trajectory-independent transition from one of the shores of the mathematical cut to the other shore in the J-integral. The time when the J-integral attains the critical value corresponds to the initiation of crack motion. In the present paper, we consider the steady-state strip separation process starting from the fundamental thermodynamic relation. The strip material behavior is determined both at the stage of stable (in general, elastoplastic) loading and at the stage of Drucker unsdtable strain until the time at which the interaction between particles ceases. We single out a domain of unstable material strain, i.e., an interaction layer whose initial width is assumed to be a universal constant of the material [3]. The proposed approach permits expressing the material surface energy via the critical thermomechanical parameters (determined from the complete strain diagram) and the interaction layer thickness. We obtain expressions for the critical values of J-integrals. The critical values of J-integrals [4–6] corresponding to nonlinearly elastic and ideally plastic materials follow from general considerations. We have shown that the possibility of using J-integrals as elastoplastic separation criteria depends on the layer thickness of an irreversibly strained material. If the corresponding thickness is independent of the boundary conditions and the body geometry, then it is possible to use the value of the J-integral as a separation criterion; this corresponds to the Irwin-Orowan quasibrittle fracture approach.
Starting Page	925
Ending Page	934
Page Count	10
File Format	PDF
ISSN	00256544
Journal	Mechanics of Solids
Volume Number	42
Issue Number	6
e-ISSN	19347936
Language	English
Publisher	Allerton Press, Inc.
Publisher Date	2007-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy Mechanics of Materials

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