Results 11 to 20 of about 679,868 (186)
KIc Determination of a 7075 T6 Aluminum Alloy by Critical Distances Theory and LEFM [PDF]
Materials Research, 2023 The Critical Distances Theory has been used in engineering field as a less expensive method to predict failures. Thus, this research aims to evaluate its methods in other materials, like the aluminum alloy 7075 T6, and notches. Two different notches were
Larissa Gomes Simão +1 more
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The notch effect on fracture of polyurethane materials [PDF]
Fracture and Structural Integrity, 2014 This paper investigates the fracture properties and notch effect of PUR materials with four different densities. The asymmetric semi-circular bend specimen was adapted to perform mixed mode fracture toughness tests.
T. Voiconi +4 more
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The application of the Theory of Critical Distances to nonhomogeneous materials
Fatigue & Fracture of Engineering Materials & Structures, 2023 AbstractThe Theory of Critical Distances (TCD) has undoubtedly represented a breakthrough in the brittle failure assessment of engineering materials containing defects, crack, or notches. The basic idea on which the simplest formulation of the TCD is based is to evaluate an effective stress at a characteristic distance from the tip of the defect/crack ...
Liviu Marsavina +3 more
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Metals, 2020 This paper validates a methodology for the estimation of critical loads in tubular beams containing notch-type defects. The methodology is particularized for the case of Al6060-T66 tubular cantilever beams containing U-shaped notches.
Marcos Sánchez +3 more
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Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023 Correlations between material parameters are useful because they provide a first estimation of unknown parameters. Here, the correlation between the tensile strength and the mode I fracture toughness of rocks is studied.
Jon Justo, Marina Miranda, Jorge Castro
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"Deconfined" quantum critical points [PDF]
, 2003 The theory of second order phase transitions is one of the foundations of modern statistical mechanics and condensed matter theory. A central concept is the observable `order parameter', whose non-zero average value characterizes one or more phases and ...
Balents, Leon +4 more
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Theory of critical distances: A discussion on concepts and applications
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2021 Theory of Critical Distances (TCD) collects several methods adopted in failure prediction of components provided with stress concentration features. The idea of evaluating stress effect in a zone rather than in a single point was proposed decades ago but, only thanks to relatively recent works, TCD concepts showed to be a successful extension of ...
Delprete C., Maggio L. G., Sesana R.
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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
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Applications of the theory of critical distances in failure analysis [PDF]
Engineering Failure Analysis, 2011 Abstract The Theory of Critical Distances (TCD) is the name which I use to describe a group of methods employed for the prediction of failure in cases where stress concentrations are present and where the failure mode involves cracking, such as fatigue and brittle fracture. Some of these methods are more than 50 years old, some very recent.
openaire +3 more sources
Phase transitions, double-scaling limit, and topological strings [PDF]
, 2006 Topological strings on Calabi--Yau manifolds are known to undergo phase transitions at small distances. We study this issue in the case of perturbative topological strings on local Calabi--Yau threefolds given by a bundle over a two-sphere.
A. Okounkov +12 more
core +6 more sources