Residual stresses in cast iron automotive brake disc rotors
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Date
2005-11-27
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
The Bragg Institute, Australian Nuclear Science and Technology Organisation
Abstract
Runout, and consequent juddering and pulsation through the brake pedal, is a multi-million dollar per year warranty problem for car manufacturers. There is some suspicion that the runout can be caused by relaxation of residual casting stresses when the disc is overheated during severe-braking episodes. We report here neutron-diffraction measurements of the levels and distribution of residual strains in a used cast iron brake disc rotor. The difficulties of measuring stresses in grey cast iron are outlined and three-dimensional residual-strain distributions are presented and their possible effects discussed. © The Authors
Description
Physical copy held by ANSTO Library at DDC 539.7217/2
Keywords
Neutrons, Residual stresses, Cast iron, Brakes, Automobiles, Vibrational states, Manufacturing, Diffraction
Citation
Ripley, M. I., & Kirstein, O. (2005). Residual stresses in a cast iron automotive brake disc rotor. Paper presented at the Eighth International Conference on Neutron Scattering ICNS 2005: "Neutrons for structure and dynamics - a new era", Sydney Convention & Exhibition Centre, Sydney, Australia, 27 November-2 December 2005. In Final Programme and Abstract Book, (pp. 241).