Exploració per autor "Otero Gruer, Fermín Enrique"
Ara es mostren els items 1-20 de 29
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A dynamic spring element model for the prediction of longitudinal failure of polymer composites
Tavares, Rodrigo Paiva; Otero Gruer, Fermín Enrique; Baiges Aznar, Joan; Turon Travesa, Albert; Camanho, Pedro P. (2019-04)
Article
Accés obertA spring element model that takes into account the dynamic effects associated with fibre failure in composite materials is presented. The model is implemented in a parallel environment to allow a better performance in the ... -
A methodology to generate design allowables of composite laminates using machine learning
Furtado, Carolina; Pereira, L.F.; Tavares, Rodrigo Paiva; Salgado, Henrique M.; Otero Gruer, Fermín Enrique; Catalanotti, Guiuseppe; Arteiro, Albertino; Bessa, Miguel A.; Camanho, Pedro P. (2021-12)
Article
Accés obertThis work represents the first step towards the application of machine learning techniques in the prediction of statistical design allowables of composite laminates. Building on data generated analytically, four machine ... -
A novel methodology to measure the transverse Poisson's ratio in the elastic and plastic regions for composite materials
Ruiz Cózar, Ivan; Arbeláez Toro, Juan Jose; Maimi, Pere; Otero Gruer, Fermín Enrique; González Juan, Emilio Vicente; Turon Travessa, Albert; Camanho, Pedro P. (Elsevier, 2024-03-01)
Article
Accés obertA new methodology to measure the transverse Poisson’s ratios in fibre-reinforced composite materials was developed. Transverse tensile and transverse compressive standardised tests were instrumented using digital image ... -
A synchrotron computed tomography dataset for validation of longitudinal tensile failure models based on fibre break and cluster development
Breite, Christian; Melnikov, Alexander; de Morais, Alfredo Balacó; Maire, Eric; Otero Gruer, Fermín Enrique; Gorbatikh, Larissa (Elsevier, 2021-12)
Article
Accés obertWe performed in-situ tensile tests on two carbon fibre/epoxy composites with continuous scanning using synchrotron computed tomography (CT). Both composites were cross-ply laminates, and two specimens were tested for each ... -
A three-dimensional plastic-damage model for polymer composite materials
Ruiz Cózar, Ivan; Otero Gruer, Fermín Enrique; Maimi, Pere; González Juan, Emilio Vicente; Miot, Stéphanie; Turon Travesa, Albert; Camanho, Pedro P. (Elsevier, 2022-09)
Article
Accés restringit per política de l'editorialA new 3D elastoplastic damage model is proposed to predict the plastic deformation and the progressive failure of unidirectional laminated composite materials at the meso-scale level. A non-associated flow rule is employed ... -
An analytical model to predict stress fields around broken fibres and their effect on the longitudinal failure of hybrid composites
Guerrero García, José María; Tavares, Rodrigo Paiva; Otero Gruer, Fermín Enrique; Mayugo Majó, Joan Andreu; Turon Travesa, Albert; Costa Balanzat, Josep; Camanho, Pedro P. (2019-03)
Article
Accés obertThis paper presents an analytical model to predict the stress redistribution around broken fibres in hybrid polymer composites. The model is used under the framework of a progressive failure approach to study the load ... -
An efficient multi-scale method for non-linear analysis of composite structures
Otero Gruer, Fermín Enrique; Martínez García, Javier; Oller Martínez, Sergio Horacio; Salomon Rotlisbeger, Ramon Omar (2015-11-01)
Article
Accés obertThe use of multi-scale procedures is encouraged by the continuous increase of computational capacity, but it is still a challenge performing a non-linear analysis of real composite structures without the aid of large ... -
An enhanced constitutive model to predict plastic deformation and multiple failure mechanisms in fibre-reinforced polymer composite materials
Ruiz Cózar, Ivan; Otero Gruer, Fermín Enrique; Maimi, Pere; González Juan, Emilio Vicente; Turon Travessa, Albert; Camanho, Pedro P. (2024-02-15)
Article
Accés obertSpurious damage modes in continuum damage mechanics models for fiber-reinforced polymer composite materials based on the effective stress tensor can be generated when large strains occur. A methodology to prevent this ... -
An invariant based transversely-isotropic constitutive model for unidirectional fibre reinforced composites considering the matrix viscous effects
Gerbaud, Paul William; Otero Gruer, Fermín Enrique; Bussetta, Philippe; Camanho, Pedro P. (2019-11)
Article
Accés obertFibres Reinforced Polymers (FRPs) are found in several applications in aeronautics, space and in the automotive industry. These applications are exposed to loading conditions, including impact, which results in a complex ... -
Blind benchmarking of seven longitudinal tensile failure models for two virtual unidirectional composites
Breite, Christian; Melnikov, Alexander; Turon Travesa, Albert; de Morais, Alfredo Balacó; Otero Gruer, Fermín Enrique; Mesquita, F; Costa Balanzat, Josep; Mayugo Majó, Joan Andreu; Guerrero García, José María; Gorbatikh, Larissa (2021-01)
Article
Accés obertMany models for prediction of longitudinal tensile failure of unidirectional (UD) composites have been developed in the last decades. These models require significant assumptions and simplifications, but their consequences ... -
Damage evolution in open-hole laminated composite plates subjected to in-plane loads
Moure, M. M.; Otero Gruer, Fermín Enrique; Garcia Castillo, S. K.; Sanchez Saez, S.; Barbero, E; Barbero, Ever (2015-12-01)
Article
Accés obertDamage evolution of notched composite laminates is analysed in this work using a discrete damage model, which estimates matrix damage evolution and fibre failure. The fibre damage is regularised with a Weibull distribution, ... -
Detailed experimental validation and benchmarking of six models for longitudinal tensile failure of unidirectional composites
Breite, Christian; Melnikov, Alexander; Turon Travesa, Albert; de Morais, Alfredo Balacó; Le Bourlot, Christophe; Maire, Eric; Schöberl, Erich; Otero Gruer, Fermín Enrique; Sinclair, Ian; Costa Balanzat, Josep; Mayugo Majó, Joan Andreu; Guerrero García, José María; Gorbatikh, Larissa (2022-01)
Article
Accés obertLongitudinal tensile failure of unidirectional fibre-reinforced composites remains difficult to predict accurately. The key underlying mechanism is the tensile failure of individual fibres. This paper objectively measured ... -
Effective simulation of the mechanics of longitudinal tensile failure of unidirectional polymer composites
Tavares, Rodrigo Paiva; Otero Gruer, Fermín Enrique; Turon Florenza, Albert; Camanho, Pedro P. (Springer, 2017-12)
Article
Accés obertAn efficient computational model to simulate tensile failure of both hybrid and non-hybrid composite materials is proposed. This model is based on the spring element model, which is extended to a random 2D fibre packing. ... -
Effects of local stress fields around broken fibres on the longitudinal failure of composite materials
Tavares, Rodrigo Paiva; Guerrero Cruz, José Manuel; Otero Gruer, Fermín Enrique; Turon Travesa, Albert (2018-08-28)
Article
Accés obertAn in-depth analysis of the stress fields that surround a broken fibre in fibre reinforced composites is performed and the effects of different material properties are analysed. The stress fields obtained using a spring ... -
Experimental characterization and constitutive modeling of the non-linear stress–strain behavior of unidirectional carbon–epoxy under high strain rate loading
Koerber, Hannes; Kuhn, Peter; Ploeck, Marina; Otero Gruer, Fermín Enrique; Gerbaud, Paul William; Rolfes, Raimund; Camanho, Pedro P. (Springer, 2018-12)
Article
Accés obertThe mechanical response of IM7-8552 carbon epoxy was investigated for transverse tension and transverse tension/in-plane shear loadings at static and dynamic strain rates using transverse tension and off-axis tension ... -
Micro-mechanical analysis of composite materials using Phase-Field models of brittle fracture
Macias Bernal, Juan Manuel; Arteiro, Albertino; Otero Gruer, Fermín Enrique; Camanho, Pedro P.; Reinoso Cuevas, José (Elsevier, 2023-11-01)
Article
Accés obertFailure in fiber-reinforced composites is a complex phenomenon where different damage mechanisms interact and evolve through various scales. Micro-mechanical analysis using the finite element method has become an important ... -
Modeling 3D transverse elasto-plastic damage of unidirectional fiber-reinforced polymer composites using a smeared crack approach
Teixeira Goncalves, Paulo; Arteiro, Albertino; Rocha, Nuno; Otero Gruer, Fermín Enrique (Elsevier, 2024-01-01)
Article
Accés obertThis work presents a novel formulation of a 3D smeared crack model for unidirectional fiber-reinforced polymer composites based on a stress invariant approach for transverse yielding and failure initiation, and on a continuum ... -
Modelling viscoelastic behaviour of carbón nanotube-reinforced thermo-plastics
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier; Salomón, Ramón Omar (Asociación Argentina de Mecánica Computacional, 2012)
Text en actes de congrés
Accés obertCarbon nanotubes (CNTs), since their discovery by Lijima (S. Lijima, Nature, 354:56-58 (1991)), are considered a new generation of reinforcement. Their "nano" size structure makes them potentially free of defects, which ... -
Multi-scale procedure for the mechanical analysis of composite laminate structures considering mixed boundary conditions
Turon Pujol, Francesc; Otero Gruer, Fermín Enrique; Martínez García, Javier (2023-10)
Article
Accés obertThis paper presents a multi-scale procedure for the study of flat composite structures with discontinuities. In this procedure, the structure is solved using shell elements while the laminate performance and the structural ... -
Multiscale computational homogenization
Otero Gruer, Fermín Enrique; Oller Martínez, Sergio Horacio; Martínez García, Javier (Centro de Investigación en Matemáticas, 2017)
Capítol de llibre
Accés restringit per política de l'editorial