Method of the reliability calculation of orthotropic composite materials with random defects

Authors

DOI:

https://doi.org/10.15587/2313-8416.2018.146636

Keywords:

reliability, orthotropic composite material, probability of failure, distribution function, failure loading

Abstract

An algorithm for the reliability calculating of stochastically defective orthotropic composite materials under conditions of a complex stress state is described. The criterion of maximum macroscopic stresses for a composite with arbitrarily oriented cracks with a predominant orientation in the direction of reinforcement is considered. The distribution function of the composite failure loading is obtained. The calculation is carried out and diagrams are constructed for the dependence of the test material sample probability of fracture on the applied loading for different number of cracks and structural heterogeneity

Author Biographies

Roman Baitsar, Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

Doctor of Technical Sciences, Professor

Department of Measuring Information Technologies

Roman Kvit, Lviv Polytechnic National University S. Bandery str., 12, Lviv, Ukraine, 79013

PhD, Associate Professor

Department of Mathematics

References

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Published

2018-11-08

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Section

Technical Sciences