National Repository of Grey Literature 2 records found  Search took 0.02 seconds. 
Stochastická simulace deformací textilních materiálů jako výplní v kompozitech
Tunák, M. ; Linka, A. ; Volf, Petr
A method for modeling and random generation of deformations and breaks in textile materials is developed. It considers both the breaking strengths of fibers and the structure of the fabrics. The MCMC procedure is used for the dynamic generation of breaks. Comparison with real strength-stress curves is made.
Statistický model snížení doby do poruchy způsobeného náhodným šokem
Volf, Petr
We consider a time-to-failure of a technical object or system and a special model of its abrupt degradation caused by a random shock. It is assumed that the consequence of such an event is the shift of 'virtual' age of the object forward, i.e. the reduction of its survival time. We present a method of statistical analysis of the case, maximum likelihood estimation and the consistency of the shift estimate under both parametric (e.g. Weibull) and non-parametrized models of time-to-failure. The examples deal with simulated as well as with the real-case.

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