The Experimental Study and Numerical Estimation of Fracture Toughness of Heterogeneous Welded Joints

Author:

Moskvichev Egor1

Affiliation:

1. RAS

Abstract

In this paper the mechanical heterogeneity of welded joints was studied. The experimental results show that the mechanical properties and fracture toughness vary significantly in zones of welded joint. To estimate the fracture parameter J-integral a numerical finite-element model based on the random variation of yield strength was proposed.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Reference11 articles.

1. L.A. Kopelman: Soprotivlyaemost svarnykh uzlov khrupkomu razrusheniyu (Mashinostroenie, Russia 1978).

2. G. Plyuvinazh: Mekhanika uprugoplasticheskogo razrusheniya (Mir, Russia 1993).

3. N.S. Kogut, M.V. Shakhmatov, V.V. Yerofyeev: Nesushchaya sposobnost svarnykh soedinenii (Svit, Ukraine 1991).

4. Ma Weidian, Zhang Shicheng and Tian Xitang: Acta Metal. Sinica (English ed. ) Vol. 2 (1989), p.48.

5. Jianqing Fu, Yaowu Shi: Int. J. Fracture V. 106 (2000), p.311.

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