Load-carrying capacity of welded joints with fillet welds in ductile failure. Report 1

1986 ◽  
Vol 18 (9) ◽  
pp. 1249-1256
Author(s):  
M. V. Shakhmatov ◽  
V. V. Erofeev ◽  
L. I. Khmarova ◽  
A. A. Ostsemin
Keyword(s):  
Carrying Capacity ◽  
Welded Joints ◽  
Ductile Failure ◽  
Fillet Welds ◽  
Load Carrying Capacity ◽  
Load Carrying

Load-carrying capacity of welded joints with fillet welds in quasibrittle and brittle fracture. Report 2

1986 ◽  
Vol 18 (9) ◽  
pp. 1256-1265 ◽  
Author(s):  
M. V. Shakhmatov ◽  
V. V. Erofeev ◽  
L. I. Khmarova ◽  
A. A. Ostsemin
Keyword(s):  
Brittle Fracture ◽  
Carrying Capacity ◽  
Welded Joints ◽  
Fillet Welds ◽  
Load Carrying Capacity ◽  
Load Carrying

Enhancement of Load-Carrying Capacity of Undermatching Butt Joints by Weld Shape Design

2011 ◽  
Vol 189-193 ◽  
pp. 3279-3283 ◽  
Author(s):  
Zhi Li Zhao ◽  
Tao Wang ◽  
Hong Yuan Fang ◽  
Jian Guo Yang
Keyword(s):  
Carrying Capacity ◽  
Welded Joints ◽  
Weld Zone ◽  
Geometric Parameters ◽  
Shape Design ◽  
Load Carrying Capacity ◽  
Butt Joints ◽  
Critical Crack ◽  
Weld Shape ◽  
Load Carrying

A new attempt is proposed to improve the load-carrying capacity of high strength steel undermatching butt welded joints by shape design. Based on the principle that reasonable geometric parameters designs of welded joints can regulate the distribution of stress and strain, reduce the stress concentration factors in low strength weld zone, the geometric parameters of undermatching butt joints, such as weld toe radius, height of excess weld metal and width of the cover passes are designed. A series of tests were completed to investigate the effect of weld shape design on the mechanical properties and security of undermatching butt joints. The results showed that the critical crack sizes of the 0.6~1.0 undermatching joints is greater than or equal to the one of base metal, the joints strengths approach to the tensile strength of base mental, and the fatigue strength is far higher than that of the as-welded equalmatching butt joints.

Load Carrying Capacities of Butt Welded Joints in High Strength Steels

2015 ◽  
Vol 137 (4) ◽  
Author(s):  
M. Khurshid ◽  
Z. Barsoum ◽  
I. Barsoum
Keyword(s):  
Weld Metal ◽  
Carrying Capacity ◽  
Welded Joints ◽  
High Strength Steels ◽  
High Strength ◽  
Filler Material ◽  
Filler Materials ◽  
Load Carrying Capacity ◽  
Design Rules ◽  
Load Carrying

The aim of this study is to investigate the influence of yield strength of the filler material and weld metal penetration on the load carrying capacity of butt welded joints in high-strength steels (HSS) (i.e., grade S700 and S960). These joints are manufactured with three different filler materials (under-matching, matching, and over-matching) and full and partial weld metal penetrations. The load carrying capacities of these mentioned joints are evaluated with experiments and compared with the estimations by finite element analysis (FEA), and design rules in Eurocode3 and American Welding Society Code AWS D1.1. The results show that load carrying estimations by FEA, Eurocode3, and AWS D1.1 are in good agreement with the experiments. It is observed that the global load carrying capacity and ductility of the joints are affected by weld metal penetration and yield strengths of the base and filler materials. This influence is more pronounced in joints in S960 steel welded with under-matched filler material. Furthermore, the base plate material strength can be utilized in under-matched butt welded joints provided appropriate weld metal penetration and width is assured. Moreover, it is also found that the design rules in Eurocode3 (valid for design of welded joints in steels of grade up to S700) can be extended to designing of welds in S960 steels by the use of correlation factor of one.

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