caa a22 4500 465741738 CHVBK 20180323111810.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF00037158 doi (NATIONALLICENCE)springer-10.1007/BF00037158 Mechanical and statistical analyses of fracture of whisker-reinforced ceramic-matrix composites [Elektronische Daten] [Kazuro Kageyama, Tsu-Wei Chou] This paper analyzes the fracture toughness of short-fiber reinforced ceramic-matrix composites (CMC). The effects of crack deflection and fiber pullout on matrix cracking are examined using a combination of mechanical and statistical models. First, the stress intensity factors of a deflected crack subjected to closure stress due to fiber pullout are analyzed based upon the mechanical model. "Distributed dislocation method” is used for the elastic analysis. Since the deflected crack is subjected to biaxial loading, a mixed mode fracture criterion in linear elastic fracture mechanics is applied to calculate the fracture toughness. Secondly, the number of pullout fibers on the fracture surface is treated as a random variable, and the statistical distribution of these fibers has been determined. The pullout force acting on a deflected crack is also obtained as a random variable by assuming a simple mechanism of fiber pullout. The probability of failure of CMC can thus be estimated from the strength characteristics of the fiber and matrix as well as the interface between these two. Kluwer Academic Publishers, 1990 Kageyama Kazuro Department of Naval Architecture and Ocean Engineering, Faculty of Engineering, University of Tokyo, Bunkyo-ku, 113, Tokyo, Japan aut Chou Tsu-Wei Department of Mechanical Engineering and Center for Composite Materials, University of Delaware, 19716, Newark, Delaware, USA aut International Journal of Fracture Kluwer Academic Publishers 46/4(1990-12-01), 297-315 0376-9429 46:4<297 1990 46 10704 https://doi.org/10.1007/BF00037158 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00037158 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kageyama Kazuro Department of Naval Architecture and Ocean Engineering, Faculty of Engineering, University of Tokyo, Bunkyo-ku, 113, Tokyo, Japan aut NATIONALLICENCE 700 1- Chou Tsu-Wei Department of Mechanical Engineering and Center for Composite Materials, University of Delaware, 19716, Newark, Delaware, USA aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 46/4(1990-12-01), 297-315 0376-9429 46:4<297 1990 46 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer