Results 11 to 20 of about 1,891,729 (293)

A relationship between tensile strength and mode I fracture toughness of rocks using the critical distance

open access: yesGeomechanics 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
doaj   +1 more source

Theory of critical distances: A discussion on concepts and applications

open access: yesProceedings 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.
openaire   +2 more sources

Inverse Ising inference, hyperuniformity and absorbing states in the Manna model [PDF]

open access: yes, 2018
Using inverse Ising inference we show that the absorbing states of the one-dimensional Manna model can be described by an equilibrium model with an emergent interaction displaying short-ranged repulsion and long-ranged attraction. As the model approaches
Machon, Thomas
core   +3 more sources

Estimation of fretting fatigue life using a multiaxial stress-based critical distance methodology [PDF]

open access: yesFracture 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.
F. C. Castro   +3 more
doaj   +3 more sources

A review on the application of the theory of critical distance towards concrete

open access: yesMATEC Web of Conferences, 2018
Theory of Critical Distance (TCD) is one of Fracture Mechanics numerical model that has gone through tremendous laboratory works and validation. Hence, it has been proven to be precise in broad perspectives in the field. Recently, TCD research related to
Ahmad Shah Mohamad Shazwan   +3 more
doaj   +1 more source

Applications of the theory of critical distances in failure analysis [PDF]

open access: yesEngineering 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

The fractal structure of the universe : a new field theory approach [PDF]

open access: yes, 1998
While the universe becomes more and more homogeneous at large scales, statistical analysis of galaxy catalogs have revealed a fractal structure at small-scales (\lambda < 100 h^{-1} Mpc), with a fractal dimension D=1.5-2 (Sylos Labini et al 1996).
Balian R.   +19 more
core   +3 more sources

The Theory of Critical Distances applied to multiscale toughening mechanisms [PDF]

open access: yesEngineering 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

Quantum corrections in 4d N = 1 infinite distance limits and the weak gravity conjecture

open access: yesJournal of High Energy Physics, 2021
We study quantum corrections in four-dimensional theories with N = 1 supersymmetry in the context of Quantum Gravity Conjectures. According to the Emergent String Conjecture, infinite distance limits in quantum gravity either lead to decompactification ...
Daniel Klaewer   +3 more
doaj   +1 more source

Static assessment of brittle/ductile notched materials: an engineering approach based on the Theory of Critical Distances [PDF]

open access: yesFracture and Structural Integrity, 2014
Engineering components often contain notches, keyways or other stress concentration features. These features raise the stress state in the vicinity of their apex which can lead to unexpected failure of the component.
R. Louks , H. Askes , L. Susmel
doaj   +3 more sources

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