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Implementation of the Theory of Critical Distances using mesh control
Theoretical and Applied Fracture Mechanics, 2017Abstract The Theory of Critical Distances (TCD) is a method for predicting fatigue and fracture at stress concentration features. It is extensively used in the design of engineering components, being a relatively simple approach based on post processing of finite element analysis (FEA).
VARGIU, FILIPPO +4 more
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Fatigue Failure Analysis Using the Theory of Critical Distance
Key Engineering Materials, 2011This paper explores the initial potential of theory of critical distance (TCD) which offers essential fatigue failure prediction in engineering components. The intention is to find the most appropriate TCD approach for a case of multiple stress concentration features in future research.
Ruslizam Daud +3 more
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Extending the theory of critical distances to quasi-brittle fracture
Theoretical and Applied Fracture Mechanics, 2021Abstract The results of theoretical and experimental studies of brittle and quasi-brittle fracture of plaster plates containing a circular hole and subjected to non-uniformly distributed compression are presented. This paper summarizes the results, partially published by the author earlier.
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Application of the Theory of Critical Distance to Fretting Fatigue
2008Fretting fatigue occurs at the contact interface of mechanical joints which are designed to be at rest but that nevertheless experience some sort of relative movement due to vibration. This work aims to develop a crack initiation threshold condition for fretting fatigue.
Araùjo A. +3 more
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Microstructural Parameters in the Theory of Critical Distances
Materials Science Forum, 2007The work described below investigates, for the first time, the link between microstructural parameters such as grain size and the length constant L which is known as the critical distance. L is frequently used in the prediction of failure processes such as brittle fracture and fatigue, initiated at stress concentration features such as notches.
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The Theory of Critical Distances: A link to micromechanisms
Theoretical and Applied Fracture Mechanics, 2017Abstract The Theory of Critical Distances (TCD) is a methodology for prediction of the effect of stress concentration features on material failure, especially cracking-related mechanisms such as fatigue and brittle fracture. It has a long history but has become much more relevant to industrial problems in recent years thanks to the widespread ...
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Analysis of notch effect in PMMA using the Theory of Critical Distances
Engineering Fracture Mechanics, 2012Abstract The Theory of Critical Distances is actually a group of methodologies, all of them using a characteristic material length parameter when performing fracture assessments on any kind of stress risers. In this paper, the application of the Theory of Critical Distances on Polymethyl methacrylate is analysed, the parameters involved in the ...
S. Cicero, V. Madrazo, I.A. Carrascal
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Applications of critical point theory of distance functions to geometry
Geometriae Dedicata, 1991The author uses the critical point theory of distance functions to obtain two results. First he considers a complete open manifold \(M^ n\) of nonnegative sectional curvature and rapidly increasing volume and gives a new proof for the following Theorem A [the reviewer and \textit{V. Toponogov}, Sib. Mat. Zh. 26, No.
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The Theory of Critical Distances: Applications in Fatigue
2008This papers reviews the use of the Theory of Critical Distances (TCD) to predict high-cycle fatigue strength of real components when the complexity of their geometry causes stress concentration phenomena.
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The theory of critical distances: a review of its applications in fatigue
Engineering Fracture Mechanics, 2008Abstract This paper attempts to review the most interesting findings in the use of the theory of critical distances (TCD) to predict fatigue strength of notched mechanical components. Initially, the most modern formalisations of the TCD are considered, showing their peculiarities and differences.
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