A computational approach for fatigue crack propagation in ship structures under random sequence of clustered loading
نویسندگان
چکیده
منابع مشابه
Fatigue Analysis for Structures under Stochastic Loading
Predicting the peak distribution of stochastic stress responses is critical for various fatigue analysis problems with stochastic uncertainties. In this paper, a method, based on the first-order reliability method (FORM), is proposed for estimating the peak distribution of stochastic response. The method linearizes the stochastic process at the associated most probable point. After linearizatio...
متن کاملStrip yield modelling of fatigue crack under variable amplitude loading
The results from ‘strip yield’ approach of the FASTRAN type models of plasticity induced crack closure effects of fatigue cracks subjected to variable amplitude loadings are presented. The strip yield results are compared with authors’ finite element (FE) and experimental results. It has been observed that the strip yield model is seen to be fundamentally limited by choice of α (constraint fact...
متن کاملA New Probabilistic Approach for Describing Fatigue Crack Growth under Random Overloads
A new probabilistic model describing the fatigue crack growth with retardation due to random overloads is developed. First, a crack growth equation is formulated based upon the Flber law, where a concept of retardation factor is introduced to quantify the retardation effect. Next, a new approach is discussed for describing the temporal variation of the retardation factor by the use of a system ...
متن کاملEffect of Boundary Condition on Pre-Existing Crack Under Fatigue Loading
In this paper, the present investigation has been conducted keeping in mind some of the problems concerning the crack propagation direction and growth under constant loading in an inclined crack geometry. The present studies mainly focused on the development and modifications in the crack growth criterion to account the biaxial, shear loading and number of stress terms. Existing criteria for th...
متن کاملCrack Propagation in Honeycomb Cellular Materials: A Computational Approach
Computational models based on the finite element method and linear or nonlinear fracture mechanics are herein proposed to study the mechanical response of functionally designed cellular components. It is demonstrated that, via a suitable tailoring of the properties of interfaces present in the mesoand micro-structures, the tensile strength can be substantially increased as compared to that of a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Marine Science and Technology
سال: 2008
ISSN: 0948-4280,1437-8213
DOI: 10.1007/s00773-008-0014-5