Elastic analysis of thermally induced stresses in the magnetic: Recording head gimbal assembly

The thermal bending of the magnetic recording head gimbal assembly is model ed with elastic theory. The bending arises from the thermal expansion coeff icient difference between the ceramic slider and the stainless-steel suspen sion which are bonded together with an adhesive. The system is modeled as a trilayer composite beam. Displacement compatibility equations describe the stress distribution. In our approach, the Laplace transform is used to sol ve the coupled integral equations, and this provides the analytical solutio n for the stress in this geometry. Calculations are performed to investigat e the effects of material properties and geometry on thermal bending of the slider.