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Mostrando ítems 1-10 de 15
Ponencia
Residual Tensile Strength of Multi-Impacted Woven Glass Fibre-Reinforced Polymer Composites
(INEGI / FEUP (Faculty of Engineering of University of Porto), 2023-07)
The effect of multiple low-velocity impacts on the tensile strength of E-glass/epoxy woven fabric composite laminates was studied. For this purpose, specimens with a lay-up sequence of [0,90]10 were considered, which were ...
Ponencia
Estudio experimental a fatiga de laminados unidireccionales a 90⁰
(Grupo Español de Fractura, 2021-06-08)
La vida a fatiga de laminados unidireccionales a 90⁰ (UD-90) ha sido estudiada ante distintas condiciones de carga cíclica Tracción-Tracción (R=0.1). En primer lugar, el efecto de la porosidad se ha evaluado usando dos ...
Ponencia
Study of the influence of stacking sequence in the failure of crossply laminates manufactured with ultra-thin plies
(Asociación Española de Materiales Compuestos (AEMAC), 2024-01)
Numerous studies on the use of laminates manufactured with ultra-thin composite laminates have shown the existence of a significant delay in the appearance of damage, a phenomenon known as the Scale Effect. To study the ...
Ponencia
Computational semi-analytic code for stress singularity analysis
(Elsevier, 2022)
Problems of stress singularities in single or multi-material corners have been addressed by many authors over the years. Most of the authors presented closed-form corner-eigenequations for special cases, and often there ...
Ponencia
Experimental study of the use of ultra-thin plies in quasi-isotropic laminates under cyclic tension after impact
(Asociación Española de Materiales Compuestos (AEMAC), 2024-01)
In this work, the authors propose an experimental study on the possible improvement of the mechanical behaviour produced by ultra-thin plies in laminates subjected to cyclic loading after impact. More specifically, this ...
Ponencia
An xfem-based numerical scheme to compute crack-induced electrical resistivity changes in cracked cnt-reinforced composites using ansys
(American Institute of Physics Inc., 2020-11-30)
This paper presents an eXtended Finite Element Method (XFEM)-based numerical scheme to compute electrical resistivity changes caused by the presence of cracks. Using the commercial finite element package ANSYS, the virtual ...
Ponencia
Modelling crowd-structure interaction on an ultra-lightweight FRP footbridge
(Universidad de Valladolid, 2022)
Human-Structure Interaction (HSI) may influence the dynamic behaviour of Fibre Reinforced Polymer (FRP) footbridges due to the lightweight nature of composite materials. Hence, load models that account for HSI should be ...
Ponencia
Quadrature rule for singular integrals in common engineering problems
(WiT Press, 2022)
This paper describes a general method to compute the boundary integral equation for common engineering problems. The proposed procedure consists of a new quadrature rule to evaluate singular and weakly singular integrals. ...
Ponencia
Micro Damage and Cracking in Fibre Reinforced Composites by a Novel Hybrid Numerical Technique
(American Institute of Physics Inc., 2020-11-26)
The prediction of failure mechanisms in fibre-reinforced composite materials is of great importance for the design of composite engineering applications. With the aim of providing a tool able to predict and explain the ...
Ponencia
Finite Fracture Mechanics from the macro- to the micro-scale. Comparison with the Phase Field model
(Elsevier, 2022)
In the Phase Field methodology there is a length parameter related to the size of the damage region, which is proportional to the Irwin length. In this work, we apply the Phase Field methodology to the analysis of fracture ...