A5011460286- Concrete Corrosion and Durability
- Additive Manufacturing and 3D Printing Technologies
- Innovations in Concrete and Construction Materials
- Structural Behavior of Reinforced Concrete
- BIM and Construction Integration
- Corrosion Behavior and Inhibition
- Structural Load-Bearing Analysis
- Structural Health Monitoring Techniques
- Innovative concrete reinforcement materials
- Structural Engineering and Vibration Analysis
- Bone Tissue Engineering Materials
- Hydrogen embrittlement and corrosion behaviors in metals
- Probabilistic and Robust Engineering Design
- Fatigue and fracture mechanics
- Numerical methods in engineering
- Orthopaedic implants and arthroplasty
- biodegradable polymer synthesis and properties
- Structural Analysis and Optimization
- Railway Engineering and Dynamics
- Power Systems and Technologies
- Infrastructure Maintenance and Monitoring
- Mechanical Behavior of Composites
- Concrete and Cement Materials Research
- Geotechnical Engineering and Underground Structures
Universidad de Navarra
2021-2024
Universidad Publica de Navarra
2021-2024
Tecnalia
2017-2024
Association of Electronic and Information Technologies
2021-2022
Euskadiko Parke Teknologikoa
2018
Thermoplastic polymer–filler composites are excellent materials for bone tissue engineering (TE) scaffolds, combining the functionality of fillers with suitable load-bearing ability, biodegradability, and additive manufacturing (AM) compatibility polymer. Two key determinants their utility rheological behavior in molten state, determining AM processability mechanical properties. We report here characterization both these physical properties four TE relevant composite formulations...
3D concrete printing is gaining relevance as a technology for the manufacture of lightweight components and complex freeform shells. Nevertheless, insertion reinforcing elements to withstand tensile stress, fabrication large structures, joints between different segments are some targets that still be addressed its full development. A new method which also includes novel parametric model presented in this study simulate performance 3DPC reinforced segmented beams subjected 3-point bending...
Concrete and mortar are widely used construction materials that when processed with new 3D-printing techniques can be to produce lighter structures freeform shapes. Both conventional cast-moulded 3D-printed concrete components withstand high compressive though limited tensile stress, so reliable material data required for correct dimensioning of those components. The indirect test, or Brazilian as per EN 12390-6 A, is perform a strength characterization hardened concrete. In this study, test...
A segmented 3D-printed concrete (3DPC) beam is designed whose structural reliability depends on a rebar that can withstand tensile stress at the joints between segments under bending moments. In this study, new approach for first time presented placement after hardening. It details an innovative testing procedure of joint behavior and bonding strength through use 3DCP assembled to form T-shaped beams with underside groove into which inserted. The embedded in mortar within semi-circular wet...
There is still a considerable gap in the definition of weldability Duplex Stainless Steel (DSS). A lack clarity that explained by standard specification maximum content equivalent carbon defines “weldable” steel coupled with fact alloying elements DSS exceed this defined limit weldability. In paper, welding quality an inert environment and presence chlorides analyzed aim defining optimum conditions 2001, 2304, 2205 DSS. The same procedure followed for hybrid weld between low mild steel,...
One of the main goals in design girder bridge deck systems is to determine cross-sectional distribution live loads across different girders that make up cross-section deck. Structural grillage models and current standards based on a Load Distribution Factor (LDF) provide oversized designs, as demonstrated this paper. This research introduces novel method allows decks be calculated by applying matrix formulation reduces structural problem 2 degrees freedom for each girder: deflection rotation...
Abstract This article deals with the comparative analysis of current cable force monitoring techniques. In addition, experience three stress techniques during construction phase is included: (a) installation load cells on active anchorages cables, (b) unidirectional strain gauges, and (c) evaluation stresses in cables applying vibrating wire technique by means accelerometers. The main advantages disadvantages each analysed are highlighted Construction Process context Tajo Viaduct, one most...
Steel rebars of structures exposed to cyclic loadings and marine environments suffer an accelerated deterioration process by corrosion fatigue, causing catastrophic failure before service life ends. Hence, stainless steel have been emerging as a way mitigating pitting contribution despite the increased cost. The present study proposes fatigue semiempirical model. Different samples made carbon steel, 304L austenitic (ASS), 316L ASS, 2205 duplex (DSS), 2304 lean steels (LDSS), 2001 LDSS...
Abstract Thermoplastic polymer – filler composites are excellent materials for bone tissue engineering (TE) scaffolds, combining the functionality of fillers with suitable load bearing ability, biodegradability, and additive manufacturing (AM) compatibility polymer. Two key determinants their utility rheological behavior in molten state, determining AM processability, mechanical load-bearing properties. We report here characterization both these physical properties four TE relevant composite...
Additive manufacturing (AM) of scaffolds enables the fabrication customized patient-specific implants for tissue regeneration. Scaffold customization does not involve only macroscale shape final implant, but also their microscopic pore geometry and material properties, which are dependent on optimizable topology. A good match between experimental data AM models is obtained when there just a few millimetres at least in one direction. Here, we describe methodology to perform finite element...
The special properties of 3 D-Printed Concrete in terms rheology, deposition technology, and dosage substantially modify its mechanical after hardening. In this paper, comparisons are drawn between different concrete strength development models specified the main Building-Codes Standards experimental data from tests on various thixotropic mortar mixes suitable for 3DPC. aim was to develop an empirical procedure improve current models, so that their results could predict 3DPC bulk materials...
<p>One of the goals sustainable development applied to bridge infrastructure is provide owners with strengthening solutions that may lead an increase existing structures service life. In case steel bridges, assessment remaining life most often linked determination structural deterioration caused by corrosion and fatigue. Damage fatigue very difficult assess before crack initiation, more bound occur in old structures, for which phenomenon was not taken into account design 1970....
This work studies the behaviour of a steel portal frame selection under fire exposure, considering both span lengths and exposure times as variables. Such structures combine carbon (S275), fireproof micro-alloyed (FR), coatings intumescent paint with variable thicknesses, improving thereby flame retardant structure. Thus, main contribution this study is optimization frames by combining steels, analysing resulting costs influence on final dimensions. Besides, topological each component within...