TY - JOUR
T1 - Thermal shock resistance analysis of a semi-infinite ceramic foam
AU - Zhang, Y. X.
AU - Wang, B. L.
PY - 2013
Y1 - 2013
N2 - This paper considers the fracture mechanics of a ceramic foam under sudden thermal load. The ceramic foam is of semi-infinite and contains an edge crack perpendicular to its surface. The temperature field and transient thermal stress field in un-cracked medium are calculated first. Then, the stresses are used as the crack surface traction with opposite sign to formulate the mixed boundary value problem. Numerical results for the stress and stress intensity factor are calculated as the functions of the thermal shock time, the crack length and the relative density of the foam. Crack propagation behavior and the thermal shock resistance of the ceramic foam are discussed in details.
AB - This paper considers the fracture mechanics of a ceramic foam under sudden thermal load. The ceramic foam is of semi-infinite and contains an edge crack perpendicular to its surface. The temperature field and transient thermal stress field in un-cracked medium are calculated first. Then, the stresses are used as the crack surface traction with opposite sign to formulate the mixed boundary value problem. Numerical results for the stress and stress intensity factor are calculated as the functions of the thermal shock time, the crack length and the relative density of the foam. Crack propagation behavior and the thermal shock resistance of the ceramic foam are discussed in details.
UR - http://handle.uws.edu.au:8081/1959.7/543817
U2 - 10.1016/j.ijengsci.2012.07.002
DO - 10.1016/j.ijengsci.2012.07.002
M3 - Article
SN - 0020-7225
VL - 62
SP - 22
EP - 30
JO - International Journal of Engineering Science
JF - International Journal of Engineering Science
ER -