| 2007 №05 (04) | 2007 №05 (06) |
The Paton Welding Journal, 2007, #5, 21-24 pages
Influence of surface defect on strength of welded joints with asymmetrical mechanical non-uniformity
A.A. Ostsemin
South-Uralsk Scientific-Industrial Center, Chelyabinsk, Russian Federation.Abstract
On the basis of the plane problem solution method of the plasticity theory the design evaluation of the static strength with asymmetrical mechanical non-uniformity of welded joints with a surface crack-like defect is performed. Stressed state of mechanically non-uniform butt joints with a surface defect is investigated. The proposed methodology for evaluating static strength of welded joints with asymmetrical mechanical non-uniformity allows determining the loadcarrying capacity by introduction into the calculation formulas of the mechanical non-uniformity coefficients.
Keywords: arc welding, butt joints, relative thickness, soft interlayer, surface crack, limit tensile force, contact strengthening, asymmetrical mechanical non-uniformity, tangential stresses on the weld fusion line, mechanical non-uniformity coefficients fusion line
References
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