Time-varying reliability models for parallel systems consisting of beam structures with crack flaws

Time-varying reliability models for parallel systems consisting of beam structures with crack flaws

Blog Article

Time-varying reliability assessment of parallel systems of beam structures with crack defects is of great importance Prevalence and risk factors for dementia and mild cognitive impairment among older people in Southeast China: a community-based study for structural safety evaluation.In this paper, time-varying reliability models for parallel systems with cracked beams are proposed.In the modeling process, the statistical correlation between crack depth, random working load, random strength degradation, and random stress response as well as the complex failure correlation jointly caused Effect on physiological parameters and anaesthetic dose requirement of isoflurane when tramadol given as a continuous rate infusion vs a single intravenous bolus injection during ovariohysterectomy in dogs by these factors are considered.Based on the finite element analysis of the cracked beams, the reliability models are constructed by combining the neural network and the response surface agent model.

The validity of the model is verified by the Monte Carlo simulation method.The results show that crack depth and working load dispersion have important effects on reliability and failure correlation.