TY - JOUR
T1 - Synchrotron micro-tomography and strain mapping on a fatigue cracked Ti/SiC fibre composite.
AU - Sinclair, R.
AU - Tan, K. T. W.
AU - Preuss, M.
AU - Withers, Philip
PY - 2004
Y1 - 2004
N2 - High resoln. synchrotron microtomog. and strain mapping of individual fibers were performed at the ESRF, Grenoble, France. In this manner, the strain distributions along individual fibers have been measured in relation to matrix and fiber cracking for a fatigue cracked Ti/SiC fiber composite specimen. The interfacial shear stress distributions in the bridging fibers were derived from the fiber strains. These indicate how the extent of debonding decreases from the notch towards the crack tip. The debonding behavior was modelled using a partial debonding shear lag model. Upon unloading the sliding of the debonded regions reversed leading to fretting wear and an assocd. redn. in interface shear strength near the crack relative to monotonic loading tests. [on SciFinder (R)]
AB - High resoln. synchrotron microtomog. and strain mapping of individual fibers were performed at the ESRF, Grenoble, France. In this manner, the strain distributions along individual fibers have been measured in relation to matrix and fiber cracking for a fatigue cracked Ti/SiC fiber composite specimen. The interfacial shear stress distributions in the bridging fibers were derived from the fiber strains. These indicate how the extent of debonding decreases from the notch towards the crack tip. The debonding behavior was modelled using a partial debonding shear lag model. Upon unloading the sliding of the debonded regions reversed leading to fretting wear and an assocd. redn. in interface shear strength near the crack relative to monotonic loading tests. [on SciFinder (R)]
U2 - 10.1080/10238160410001734676
DO - 10.1080/10238160410001734676
M3 - Article
VL - 12
SP - 195
EP - 199
JO - Journal of Neutron Research
JF - Journal of Neutron Research
ER -
