Results 31 to 40 of about 89,082 (299)

Shape optimisation for a class of semilinear variational inequalities with applications to damage models [PDF]

open access: yes, 2016
The present contribution investigates shape optimisation problems for a class of semilinear elliptic variational inequalities with Neumann boundary conditions.
Heinemann, Christian, Sturm, Kevin
core   +2 more sources

Experimental and Analytical Study of Masonry Infill Reinforced Concrete Frames Retrofitted with Steel Braces [PDF]

open access: yes, 2004
In the present work a seismic retrofitting technique is proposed for masonry infilled reinforced concrete frames based on the replacement of infill panels by K-bracing with vertical shear link.
Alarcón Álvarez, Enrique   +2 more
core   +2 more sources

Creep crack growth assessment in terms of continuum damage mechanics

open access: yesMATEC Web of Conferences, 2018
The stress, strain rate, and process zone with respect to the creep-crack growth in compacttension C(T) specimen is analyzed by employing damage-evolution equations.
Shlyannikov Valery, Tumanov Andrey
doaj   +1 more source

Inelastic damage using continuum damage mechanics in composite plate reinforced by unidirectional fibers

open access: yesMATEC Web of Conferences, 2018
It is well that a finite element method is very popular simulation method to predict the physical behavior of systems and structures. In the last years an increase of interest in a new type of numerical methods known as meshless methods was observed. The
Žmindák Milan, Dudinský Martin
doaj   +1 more source

Fracture and permeability of concrete and rocks

open access: yesComptes Rendus. Physique, 2021
Continuum Damage Mechanics provides a framework for the description of the mechanical response of concrete and rocks which encompasses distributed micro-cracking, macro-crack initiation, and then its propagation. In order to achieve a consistent setting,
Pijaudier-Cabot, Gilles
doaj   +1 more source

Micro-macro mechanics of damage and healing in rocks

open access: yesOpen Geomechanics, 2021
This paper presents the state of the art of the theory of damage and healing mechanics, with a particular emphasis on the strategies available to relate the micro-scale of crystals, cracks and pores to the scale of a Representative Elementary Volume ...
Chloé Arson
doaj   +1 more source

On continuum damage mechanics

open access: yesRakenteiden Mekaniikka, 2019
A material containing spherical microvoids with a Hookean matrix response was shown to take the appearance usually applied in continuum damage mechanics. However, the commonly used variable damage D was replaced with the void volume fraction f , which has a clear physical meaning, and the elastic strain tensor \Bold {ε}^e with the damage-elastic strain
openaire   +3 more sources

A Generalized Hypothesis of Elastic Energy Equivalence in Continuum Damage Mechanics

open access: yesEngineering Transactions, 2017
A new generalized hypothesis of elastic energy equivalence is proposed. The proposed generalized hypothesis is inclusive of all the existing different hypotheses of equivalence in continuum damage mechanics and all are obtained as special cases ...
George Z. VOYIADJIS, Peter I. KATTAN
doaj   +1 more source

Pulmonary Dysfunction Is Associated With Sleep Study Abnormalities in Children With Sickle Cell Disease: A Multicenter Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Pulmonary dysfunction and sleep abnormalities are common in children with sickle cell disease (SCD) and are associated with worse clinical outcomes. Whether spirometry abnormalities are associated with polysomnography (PSG) findings remains unclear.
Ammar Saadoon Alishlash   +4 more
wiley   +1 more source

Development of methologies to study the damage tolerance of aeronautical and aerospace composite structures [PDF]

open access: yes, 2008
Mechanics of Advanced Materials research group (Department of Continuum Mechanics and Structural Analysis) of the University Carlos III of Madrid (Spain) offers their experience in the analysis and modelization of high and low velocity impact behaviour ...
Barbero Pozuelo, Enrique   +1 more
core   +1 more source

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