A methodology based on the Birnbaum-Saunders distribution for reliability analysis applied to nano-materials

Víctor Leiva, Fabrizio Ruggeri, Helton Saulo, Juan F. Vivanco

Reliability Engineering & System Safety 157 (2017) 192-201

https://doi.org/10.1016/j.ress.2016.08.024

The Birnbaum–Saunders distribution has been widely studied and applied to reliability studies. This paper proposes a novel use of this distribution to analyze the effect on hardness, a material mechanical property, when incorporating nano-particles inside a polymeric bone cement. A plain variety and two modified types of mesoporous silica nano-particles are considered. In biomaterials, one can study the effect of nano-particles on mechanical response reliability. Experimental data collected by the authors from a micro-indentation test about hardness of a commercially available polymeric bone cement are analyzed. Hardness is modeled with the Birnbaum–Saunders distribution and Bayesian inference is performed to derive a methodology, which allows us to evaluate the effect of using nano-particles at different loadings by the R software.