A5086832626- Numerical methods in engineering
- Advanced Numerical Methods in Computational Mathematics
- Additive Manufacturing and 3D Printing Technologies
- Metal Forming Simulation Techniques
- Additive Manufacturing Materials and Processes
- Advanced Welding Techniques Analysis
- Fatigue and fracture mechanics
- Innovations in Concrete and Construction Materials
- Welding Techniques and Residual Stresses
- Rock Mechanics and Modeling
- Elasticity and Material Modeling
- Masonry and Concrete Structural Analysis
- Structural Response to Dynamic Loads
- Aluminum Alloys Composites Properties
- Advanced Mathematical Modeling in Engineering
- Dam Engineering and Safety
- High-Velocity Impact and Material Behavior
- Manufacturing Process and Optimization
- Fluid Dynamics Simulations and Interactions
- Contact Mechanics and Variational Inequalities
- Innovative concrete reinforcement materials
- Concrete Properties and Behavior
- Rheology and Fluid Dynamics Studies
- Concrete and Cement Materials Research
- Structural Behavior of Reinforced Concrete
International Center for Numerical Methods in Engineering
2015-2024
Universitat Politècnica de Catalunya
2014-2023
Polytechnic University of Puerto Rico
1993-2014
National University of Mar del Plata
2010
Mechanics' Institute
1995
Gran Telescopio Canarias (Spain)
1990
Swansea University
1986-1987
In this work a coupled thermo-chemo-mechanical model for the behavior of concrete at early ages is proposed. The allows simulation observed phenomena hydration, aging, damage, and creep. It formulated within an appropriate thermodynamic framework, from which state equations are derived. first part, formulation assessment thermochemical aspects presented. based on reactive porous media theory, it can accurately predict evolution in time hydration degree heat production. compressive tensile...
Purpose This paper aims to address the numerical simulation of additive manufacturing (AM) processes. The results are compared with experimental campaign carried out at State Key Laboratory Solidification Processing laboratories, where a laser solid forming machine, also referred as engineered net shaping, is used fabricate metal parts directly from computer-aided design models. Ti-6Al-4V powder injected into molten pool created by focused, high-energy beam and layer added material...
This work adopts a fast and accurate two-stage computational strategy for the analysis of FSW (Friction stir welding) processes using threaded cylindrical pin tools. The coupled thermo-mechanical problem is equipped with an enhanced friction model to include effect non-uniform pressure distribution under shoulder. overall numerical successfully validated by experimental measurements provided industrial partner (Sapa). verification evidence not only accomplished in terms temperature evolution...
Abstract In this paper a general methodology for the analysis of large concrete dams subjected to seismic excitation is outlined. It valid both gravity (2D representation) and arch (3D representation). The method allows non‐linear material behaviour dam, ‘transparent fictitious boundaries’ dealing properly with in‐coming out‐going waves, an efficient procedure deal dam‐soil‐fluid interaction. mechanical modelled using isotropic damage model which tension compression damage, exhibits...
In this paper a rate-dependent isotropic damage model developed for the numerical analysis of concrete dams subjected to seismic excitation is presented. The shown incorporate two features essential analysis: stiffness degradation and recovery upon load reversals strain-rate sensitivity. issue mesh objectivity addressed using concept ‘characteristic length’ fracture zone, show that both softening modulus fluidity parameter must depend on it provide consistent results as computational...
Abstract This paper briefly reviews the formulations used over last 40 years for solution of problems involving tensile cracking, with both discrete and smeared crack approaches. The focuses on approach, identifying as its main drawbacks observed mesh‐size mesh‐bias spurious dependence when method is applied ‘straightly’. A simple isotropic local damage constitutive model considered, (exponential) softening modulus regularized according to material fracture energy element size. continuum...