Results 21 to 30 of about 185,127 (293)
Variations on a critical distance theme [PDF]
, 2021 We investigate how the fatigue limit of notched specimens calculated with the Theory of Critical Distance (TCD) changes when variations in the value of the critical distance itself are considered.
Navarro Robles, Alfredo +2 more
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Comparing distance bounding protocols: A critical mission supported by decision theory [PDF]
Computer Communications, 2015 Distance bounding protocols are security countermeasures designed to thwart relay attacks. Such attacks consist in relaying messages exchanged between two parties, making them believe they communicate directly with each other. Although distance bounding protocols have existed since the early nineties, this research topic resurrected with the deployment
Gildas Avoine +2 more
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THEORY OF CRITICAL DISTANCES AND THE THICKNESS OF THE SURFACE LAYER
, 2023 The theory of critical distances is based on the strength of materials L, which is given by its strength properties KIc and σ0. We have shown that the thickness of the surface layer R(I) is equal to the nanocrack length Lnm. We have shown that there is a relationship between L and Lnm: L = 104 Lnm = 104 R(I) ≈ 10-5 М/ρ.
Berdibekov A.T. +3 more
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On the use of the theory of critical distances with mesh control for fretting fatigue lifetime assessment [PDF]
Tribology International, 2020 This work analyses the viability of the theory of critical distances (TCD) using mesh control for fretting fatigue lifetime assessment. More than seven hundred sets of simulations were performed by taking seventy different experimental tests reported previously in the literature.
Zabala, Alaitz +5 more
openaire +6 more sources
On the multiaxial fatigue assessment of complex three-dimensional stress concentrators [PDF]
, 2014 This paper assesses and quantifies the detrimental effects of complex tri-dimensional notches subjected to uniaxial and multiaxial fatigue loading. A number of experimental results taken from the technical literature and generated by testing specimens ...
ASKES, Harm +4 more
core +1 more source
Generalization of the theory of critical distance to estimate lifetime of notched components in the medium-cycle fatigue regime [PDF]
MATEC Web of Conferences, 2019 This paper proposes a new and improved way to determine the dependency of the parameter that characterizes the process zone size ∫ with fatigue life Nf. Thus, unlike the classical approach, this approach has the advantage of allowing the construction of ...
Borges Rafael +4 more
doaj +1 more source
The Theory of Critical Distances applied to multiscale toughening mechanisms [PDF]
Engineering Fracture Mechanics, 2019 Abstract The Theory of Critical Distances (TCD) is an approach used for predicting the effect of cracks and notches on fracture and fatigue behaviour. In recent years it has been successfully applied to a wide range of problems across all classes of materials.
openaire +3 more sources
Nurses' Experiences of Distance Education Programmes
, 2013 Aim. This paper reports on a study exploring the experiences of nurses undertaking distance education (DE) programmes. Background. While DE has many advantages in terms of the flexibility, autonomy and freedom that it affords to learners, the ...
Hyde, Abbey, Murray, Maurice
core +1 more source
MetalsNotch and size effects significantly influence the fatigue performance of engineering components, which is crucial for ensuring structural integrity.
Bin Li +4 more
doaj +1 more source
Estimation of fretting fatigue life using a multiaxial stress-based critical distance methodology [PDF]
Fracture and Structural Integrity, 2015 This work presents a methodology for life estimation of mechanical couplings subjected to fretting fatigue. In this approach, a stress-based multiaxial fatigue parameter is evaluated at a critical distance below the contact surface. The fatigue parameter
F. C. Castro +3 more
doaj +2 more sources