Abstract
Markov process was applied to the chain-of-bundles probability model which is often used for the axial strength analysis of a unidirectional fibrous composite. It was assumed to the process that a group consisting of fiber breakage points, the so-called cluster, evolves in time intermittently subject to two kinds of local load shares around a cluster, and that the composite fractures if the cluster achieves a critical size. Then, the two kinds of cluster evolution processes are governed by simultaneous first-order differential equations. A time-dependent Weibull distribution was used as a lifetime distribution function of the fiber, and the cumulative probability solutions for rupture-time of the critical cluster were analytically obtained. The results showed that the larger clusters reduce the width of distribution and form a master-like distribution curve, similarly to the results predicted from a conventional numerical method, the so-called recursion analysis technique. The proposed Markov process analyses were in a relatively good agreement with the distribution curves predicted by the conventional one. In addition, the effect of ineffective length which is gradually increased in time due to the shear stress relaxation of the matrix in metal matrix composites, was taken into the analysis.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of the Society of Materials Science, Japan
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
