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A variational approach to the phase field modeling of brittle and ductile fracture
(2018)
The modeling of the post-critical behavior of materials is still a scientific challenge. This is especially true when dealing with materials that undergo complex behavior, in which several mechanisms are combined. This ...
A micromechanics-based variational phase-field model for fracture in geomaterials with brittle-tensile and compressive-ductile behavior
(2022)
This paper presents a framework for modeling failure in quasi-brittle geomaterials under different loading conditions. A micromechanics-based model is proposed in which the field variables are linked to physical mechanisms ...
A finite element approach for predicting the ultimate rotation capacity of RC beams
(2013-07-15)
This paper presents a numerical approach to model the complex failure mechanisms that define the ultimate rotational capacity of reinforced concrete beams. The behavior in tension and compression is described by a constitutive ...
On the effectiveness of ventilation to mitigate the damage of spherical membrane vessels subjected to internal detonations
(SAGE, 2020)
This article conducts a comparative study on the effectiveness of ventilation to mitigate blasting effects on spherical chambers subjected to internal detonations of high explosives through finite element analysis using ...
An implicit/explicit integration scheme to increase computability of non-linear material and contact/friction problems
(Elsevier Science Sa, 2008-12)
An implicit/explicit integration scheme for non-linear constitutive models is presented. It aims at providing additional computability to those solid mechanics problems were robustness is an important issue, i.e. material ...
Zero-thickness interface constitutive theory for concrete self-healing effects
(Pergamon-Elsevier Science Ltd, 2017-07)
A damage-plasticity constitutive theory for zero-thickness interfaces is presented aimed at predicting time-dependent self-healing phenomena in concrete. The material model is based on fracture-energy concepts and accounts ...
Bounding the plastic strength of polycrystalline voided solids by linear-comparison homogenization techniques
(The Royal Society, 2015-11)
The elastoplastic response of polycrystalline voided solids is idealized here as rigid-perfectly plastic. Bounds on the macroscopic plastic strength for prescribed microstructural statistics and single-crystal strength are ...
Wavespeed measurement in buried water distribution pipes and its significance in leak location
(2013-09-16)
To determine the location of leaks in buried water pipes, acoustic methods are often used. These have proven to be very effective in metallic pipes but have been problematic in modern plastic pipes. In this paper the reason ...
The dynamic behaviour of a buried water pipe and its effect on leak location using acoustic methods
(2013-09-16)
Leakage in buried pipes is one of the main concerns for water companies due to the scarcity of potable water sources. Older metallic pipelines have been replaced by plastic pipes in such systems, which makes it more difficult ...
The dynamic behaviour of a buried water pipe and its effect on leak location using acoustic methods
(2013-09-16)
Leakage in buried pipes is one of the main concerns for water companies due to the scarcity of potable water sources. Older metallic pipelines have been replaced by plastic pipes in such systems, which makes it more difficult ...