Analytical investigation and numerical simulation of the stress–strain state in mechanically heterogeneous welded joints with a single-V butt weld. (April 2016)

• Record Type: Journal Article
• Authors: Daunys, Mykolas; Dundulis, Romualdas; Kilikevičius, Sigitas; Česnavičius, Ramūnas
• Is Part Of: Engineering failure analysis. Volume 62(2016:Apr.)
• Page Start: 232
• Page End: 241
• Publication Date: 2016-04
• Subjects: Stress–strain state -- Welding -- Butt weld -- Numerical simulation; System failures (Engineering) -- Periodicals; Fracture mechanics -- Periodicals; Reliability (Engineering) -- Periodicals; Pannes -- Périodiques; Rupture, Mécanique de la -- Périodiques; Fiabilité -- Périodiques; Fracture mechanics; Reliability (Engineering); System failures (Engineering); Periodicals; Electronic journals; 620.112
• DOI: 10.1016/j.engfailanal.2016.01.016
• Languages: English
• ISSNs: 1350-6307

Abstract

Abstract: This paper aims to investigate the stress–strain state in mechanically heterogeneous welded joints with a single-V butt weld by an analytical model along with a numerical simulation. Analytical expressions for the stress–strain state in both the weld and the main material are proposed. In order to verify the proposed expressions, a numerical simulation of the stress–strain state in a mild welded joint with a single-V butt weld was carried out on the basis of the finite element method and the results were compared with the analytical solution obtained applying the proposed analytical model. EP-787 and JONI 13/45А steels were used for the weld while 15X2MFА steel was used for the main material in the analysed welded joints. A comparison of the analytical solution with the finite element analysis results showed a good agreement. The proposed equations could be used in design practice for calculations of the stress–strain state in welded joints. Highlights: The stress strain state in mechanically heterogeneous welded joints was analysed. Analytical expressions for the stress strain state in welded joints are proposed. The numerical simulation showed a good agreement with the analytical solution. The proposed equations could be used in design practice.