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Some Critical Remarks on the Dugdale Strip Yield Model for the Crack Tip Plasticity (CROSBI ID 485257)

Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija

Pustaić, Dragan ; Štok, Boris Some Critical Remarks on the Dugdale Strip Yield Model for the Crack Tip Plasticity // ECF 12 Fracture from Defects / Brown, M.W. ; de los Rios, E.R. ; Miller, K.J. (ur.). Sheffield: Engineering Materials Advisory Services Ltd., 1998. str. 889-894-x

Podaci o odgovornosti

Pustaić, Dragan ; Štok, Boris

engleski

Some Critical Remarks on the Dugdale Strip Yield Model for the Crack Tip Plasticity

The mechanical response of an infinite thin plate with a central straight crack is considered in this paper. On the plate boundaries at infinity the biaxial normal in-plane tractions are applied, while the crack surface is loading free. It is assumed that the magnitude of the applied loads will cause the evolution of the plastic deformations in the neighbourhood of the crack tips. The plasticity aspect of fatigue crack growth will be of interest to this article. The generalised Dugdale-Barenblatt strip yield model is utilised for a description of the plastification process. In this paper two yield criteria are considered, the Tresca and the Mises, respectively. The analysis of the investigated mechanical response, which includes stresses, displacements, stress intensity factors, plastic zone magnitude, crack tip opening displacement, residual stress distribution etc., is carried out analytically using methods of the theory of analytical functions of a complex variable.

Crack Tip Plastcity; Elastic-Plastic Fracture Mechanics Parameters; Dugdale Strip Yield Model

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Podaci o prilogu

889-894-x.

1998.

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objavljeno

Podaci o matičnoj publikaciji

ECF 12 Fracture from Defects

Brown, M.W. ; de los Rios, E.R. ; Miller, K.J.

Sheffield: Engineering Materials Advisory Services Ltd.

Podaci o skupu

The 12th Bienniel Conference on Fracture ECF 12 Fracture from Defects

predavanje

14.09.1998-18.09.1998

Sheffield, Ujedinjeno Kraljevstvo

Povezanost rada

Strojarstvo