Prediction of residual stresses in welded T- and I-joints using inherent strains

Article Abstract:

The residual stresses in fillet welded T- and I- joints are predicted by an elastic analysis, which involves the replacement of the inherent strain to equivalent distributed loads. The inherent strain is considered to be the source of the residual stresses in the joints and changes with the geometric ratio of the joints rather than temperature. The inherent strain distribution is simplified by a trapezoid curve. The strain is similar in the flange and web sides of the joints. The predicted residual stress distributions agree with those obtained by thermal elasto-plastic analysis.

Analysis, Welded joints, Strains and stresses, Stresses (Materials)

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Effects of strain hardening and initial yield strength on machining-induced residual stresses

Article Abstract:

Finite element analysis is used to examine the properties of strain hardening and workpiece yield strength on machining-induced residual stresses. Different types of machining-induced residual stresses profiles are predicted and the properties play an important role in them.

Science & research, Special industry machinery, not elsewhere classified, All Other Industrial Machinery Manufacturing, Foundry Equipment Parts, Mechanical properties, Machine parts

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Cross-sectional mapping of residual stresses by measuring the surface contour after a cut

Article Abstract:

A powerful new method for residual stress measurement is presented. A part is cut in two, and the contour, or profile, of the resulting new surface is measured to determine the displacements caused by release of the residual stresses.

Surfaces, Deformation of, Surface deformation

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