A5009721358- Mechanical Behavior of Composites
- Wood Treatment and Properties
- Optical measurement and interference techniques
- Fatigue and fracture mechanics
- Tree Root and Stability Studies
- Structural Behavior of Reinforced Concrete
- Textile materials and evaluations
- Natural Fiber Reinforced Composites
- High-Velocity Impact and Material Behavior
- Structural Analysis of Composite Materials
- Ultrasonics and Acoustic Wave Propagation
- Elasticity and Material Modeling
- Structural Response to Dynamic Loads
- Forest ecology and management
- Material Properties and Processing
- Rock Mechanics and Modeling
- Bone health and osteoporosis research
- Epoxy Resin Curing Processes
- Structural Load-Bearing Analysis
- Structural Health Monitoring Techniques
- Orthopaedic implants and arthroplasty
- Polymer crystallization and properties
- Masonry and Concrete Structural Analysis
- Advanced Fiber Optic Sensors
- Plant Surface Properties and Treatments
University of Trás-os-Montes and Alto Douro
2015-2025
Universidade Nove de Julho
2025
National Institute of Statistics and Geography
2015
Centro de Estudos da Voz
2008-2012
Centro de Investigação em Artes e Comunicação
2012
Epoxy resins are extensively employed as adhesives and matrices in fibre-reinforced composites. As polymers, they possess a viscoelastic nature prone to creep stress relaxation even at room temperature. This phenomenon is also responsible for time-dependent failure or fracture due cumulative strain. Several constitutive equations have been used describe the mechanical response of polymers. These models proposed over past six decades, with minimal direct practical confrontation. Each model...
Abstract: The purpose of this paper is to provide a comparison between embedding tests covered by the EN383 and ASTM D5764 standards, highlighting some difficulties regarding application referred standards. These are essential evaluate strength wood, which required for assessment joints strength. proposed based either on experimental data numerical simulations through finite element (FE) method. Tests were performed maritime pine wood ( Pinus pinaster Ait. species) according longitudinal...
Abstract Experimental results obtained from maritime pine ( Pinus pinaster Ait.) wood are presented for the characterisation of all LR=(1,2) orthotropic stiffness parameters clear specimens by a single test. The approach relies on application virtual field method (VFM) to rectangular specimen loaded in Iosipescu fixture. displacement over gauge surface is measured grid method. Two configurations investigated: (1) with grain aligned along length (0° configuration) and (2) at 45°. For 0°...
The present work is dedicated to the experimental and numerical study of buckling behaviour under pure compression carbon–epoxy adhesively-bonded scarf repairs, with angles varying from 2 45°. results were used validate a methodology using Finite Element Method mixed-mode cohesive damage model implemented in ABAQUS® software. adhesive layer was simulated elements trapezoidal traction–separation laws modes I II account for ductility used. determined Double Cantilever Beam End-Notched Flexure...
This work addresses the reconstruction of strain gradient fields at wood growth ring scale from full-field deformation measurements provided by digital image correlation. Moreover, spatial distribution earlywood and latewood radial modulus elasticity is assessed. Meso-scale tensile tests are carried out on Pinus pinaster Ait. wooden specimens oriented in radial–tangential plane under quasi-static loading conditions. A parametric analysis two-dimensional correlation extrinsic intrinsic...
This work reports on a three-dimensional numerical analysis to assess the residual strength of single and double-strap repaired CFRP composite laminates, under tensile, compressive bending loads. Interface finite elements including triangular cohesive mixed-mode damage model are used in order simulate onset growth. The influences several geometric changes as well growth repair addressed. include chamfering outer inner patch faces, filling drilled hole with adhesive (plug filling), use...