Thermoelastic stress analysis applied to fully reversed bending fatigue

The thermoelastic effect has been used to study stress distributions in a number of in-plane loading problems. Analysis of the temperature distribution has been largely limited to isotropic one-dimensional approximations with heat transfer through the thickness of the specimen. In sonic fatigue, specimens undergo fully reversed bending with a stress gradient along the length of the specimen as well as through the thickness. This has also been modeled as a one-dimensional heat transfer problem with negligible heat transfer along the specimen length. The authors solve this as a two-dimensional problem for an isotropic material to determine the effect of heat transfer.