Internal Stress Development during Fatigue Cycling of High-Strength Al/SiC Metal Matrix Composites
In this paper, results are presented of the development of internal stresses in 2124 aluminium alloy reinforced with 25% of particulate silicon carbide. Measurements have been made during in situ low-cycle fatigue loading of this composite, using neutron diffraction. The neutron measurements were made using the ENGIN-X diffractometer at the ISIS neutron facility, UK. The results show how the internal stresses evolve with fatigue cycling. Eshelby-based modelling has been used to allow separation of the internal stress components in the MMC.
W. Reimers and S. Quander
M. E. Fitzpatrick "Internal Stress Development during Fatigue Cycling of High-Strength Al/SiC Metal Matrix Composites", Materials Science Forum, Vols. 524-525, pp. 769-774, 2006