Abstract
The effect of the degree of cross-sectional compactness λ for mechanically inhomogeneous welded joints on their stress-strained state is studied, and strength taking account of incomplete realization of contact strengthening and biaxial loading is considered by means of theoretical and experimental study of a rectangular cross section prismatic body. An increase in the supporting capacity and achievement of strength equal to that of the basic metal may be achieved within wide limits by changing the mechanical inhomogeneity factor Ku, the degree of cross-sectional compactness λ, and the relative width of the soft interlayer ξ. It is established that the supporting capacity of welded joints depends markedly on compactness in the range of values λ<5.
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