Measuring method of axisymmetric three dimensional residual stresses based on theory of inherent strain.

Residual stress measurement in an extra thick multi-pass weld using initial stress integrated inherent strain method

“…Dimension of the original welded joint, a cut-off joint for residual stress distribution and specimens (L x , L y ) for initial stresses. relation between fs T g and fs A wþinitial g given in Equation (12) based on the relation between plane stress and plane strain conditions, the inherent strains ε * y ; ε * z ; g * yz are not necessary to estimate [5,24].…”

Study of welding inherent deformations in thin plates based on finite element analysis using interactive substructure method

“…In these figures (Figs. [15][16][17][18], different materials are assigned different symbols, the straight lines indicate the trend lines, and TS, TB, LS, and LB indicates the transverse shrinkage, transverse bending, longitudinal shrinkage, and longitudinal bending, respectively. …”

“…It not only avoids complicated thermal elastic-plastic FEA but also save a large amount of computational time [10][11][12]. Ueda et al [13][14][15] studied the distribution characteristics of inherent strains in typical welded joints and the welding residual stress can be predicted by employing the inherent strains. Murakawa et al [16][17][18] created a simplified analysis model to obtain inherent strains.…”

Prediction of welding distortion in a curved plate structure by means of elastic finite element method

“…Based on thermal elastic plastic analysis and experimental observations, Ueda et al (Ueda and Yuan, 1991;Ueda et al, 1979Ueda et al, , 1989 pointed out that a source resulting in welding deformation and residual stress must exist in a weld joint. This source is called inherent strain, which is the sum of inelastic strain components.…”