Vol.13, No3, 2013, pp. 163–169
 UDC 66-988: 539.42

DIRECT MEASURMENT OF THE J INTEGRAL ON A PRESSURE VESSEL

Zoran Radaković1, Mohamed Omar Abukhres1, Aleksandar Sedmak1, Ivana Ivanović2, Blagoj Petrovski2

1)University of Belgrade, Faculty of Mechanical Engineering, Serbia, zradakovic@mas.bg.ac.rs

2)Innovation Centre of the Faculty of Mechanical Engineering, Belgrade, Serbia

Abstract

Direct measurement of J integral has been analysed in respect to the effect of material (heterogeneity and strengthening) and different boundary conditions, enabling its application to pressure vessels with a crack in welded joint. It has been shown that modifications of the original expression are needed. The possibility of applying direct measurement of J integral for pressure vessel integrity assessment has been considered.

Keywords: direct measurement of J integral, cylindrical pressure vessel, material heterogeneity , boundary conditions

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