Browsing by Author "Camanho, Pedro P."
Now showing items 1-10 of 10
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A dynamic spring element model for the prediction of longitudinal failure of polymer composites
(2019-04)
Article
Open AccessA 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
(2021-12)
Article
Open AccessThis 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
(Elsevier, 2024-03-01)
Article
Open AccessA 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 three-dimensional plastic-damage model for polymer composite materials
(Elsevier, 2022-09)
Article
Open AccessA 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
(2019-03)
Article
Open AccessThis 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 enhanced constitutive model to predict plastic deformation and multiple failure mechanisms in fibre-reinforced polymer composite materials
(2024-02-15)
Article
Open AccessSpurious 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
(2019-11)
Article
Open AccessFibres 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 ... -
Effective simulation of the mechanics of longitudinal tensile failure of unidirectional polymer composites
(Springer, 2017-12)
Article
Open AccessAn 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. ... -
Experimental characterization and constitutive modeling of the non-linear stress–strain behavior of unidirectional carbon–epoxy under high strain rate loading
(Springer, 2018-12)
Article
Open AccessThe 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
(Elsevier, 2023-11-01)
Article
Open AccessFailure 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 ...
