TY - GEN
T1 - Research of the sensitivities of fracture strength of porous ceramic materials to the relevant parameters
AU - Li, Weiguo
AU - Wang, Ruzhuan
AU - Li, Dingyu
AU - Fang, Daining
PY - 2011
Y1 - 2011
N2 - In this paper, based on the study of effects of various physical mechanisms on the fracture strength of porous ceramic materials, a thermo-damage strength theoretical model applied to each stage of temperature is established. Using the model, the sensitivities of fracture strength to relevant parameters and their variation with temperature are studied in detail. The results show that under low temperature the strength is sensitive to the changes of porosity, pore size and pore shape factor, while under high temperature the effects of porosity, pore size and pore shape factor on the strength compared to the temperature are negligible, yet the strength is very sensitive to the Young's modulus, thus the Young's modulus is the dominant of strength under high temperature. This study will provide a theoretical basis and guidance to the design and application of porous ceramic materials.
AB - In this paper, based on the study of effects of various physical mechanisms on the fracture strength of porous ceramic materials, a thermo-damage strength theoretical model applied to each stage of temperature is established. Using the model, the sensitivities of fracture strength to relevant parameters and their variation with temperature are studied in detail. The results show that under low temperature the strength is sensitive to the changes of porosity, pore size and pore shape factor, while under high temperature the effects of porosity, pore size and pore shape factor on the strength compared to the temperature are negligible, yet the strength is very sensitive to the Young's modulus, thus the Young's modulus is the dominant of strength under high temperature. This study will provide a theoretical basis and guidance to the design and application of porous ceramic materials.
KW - Porous ceramic materials
KW - Sensitivity
KW - Theoretical model
KW - Thermo-damage strength
UR - http://www.scopus.com/inward/record.url?scp=79954494845&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.217-218.191
DO - 10.4028/www.scientific.net/AMR.217-218.191
M3 - Conference contribution
AN - SCOPUS:79954494845
SN - 9783037850756
T3 - Advanced Materials Research
SP - 191
EP - 195
BT - High Performance Structures and Materials Engineering
T2 - 2011 1st International Conference on High Performance Structures and Materials Engineering, ICHPSM 2011
Y2 - 5 May 2011 through 6 May 2011
ER -