1,721,255 research outputs found
Stochastic modelling of low-cycle fatigue damage in 316L stainless steel under variable multiaxial loading
In the present study, a stochastic model is developed for the low-cycle fatigue life prediction acid reliability assessment of 316L stainless steel under variable multiaxial loading. In the proposed model, fatigue phenomenon is considered as a Markov process, and damage vector and reliability are defined on every plane. Any low-cycle fatigue damage evaluating method can be included in the proposed model. The model enables calculation of statistical reliability and crack initiation direction under variable multiaxial loading, which are generally not available. In the present study, a critical plane method proposed by Kandil et al. (Metals Soc., London 280, 203-210, 1982) maximum tensile strain range, and von Mises equivalent strain range are used to calculate fatigue damage. When the critical plane method is chosen, the effect of multiple critical planes is also included in the proposed model. Maximum tensile strain and von Mises strain methods are used for the demonstration of the generality of the proposed model. The material properties and the stochastic model parameters are obtained from uniaxial tests only. The stochastic model made of the parameters obtained from the uniaxial tests is applied to the life prediction and reliability assessment of 316L stainless steel under variable multiaxial loading. The predicted results show; good agreement with experimental results
Theoretical analysis of higher order mode sound distribution with uniform mean flow in expansion chamber mufflers
Design of a new muffler component suitable for the constraints of pressure-drop and geometric space
Theoretical prediction of transmission loss for expansion chamber type mufflers with arbitrarily shaped geometries
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