A5085573530- Fatigue and fracture mechanics
- Hydrogen embrittlement and corrosion behaviors in metals
- Microstructure and Mechanical Properties of Steels
- Material Properties and Failure Mechanisms
- Metal Forming Simulation Techniques
- Corrosion Behavior and Inhibition
- Mechanical stress and fatigue analysis
- Metallurgy and Material Forming
- Structural Load-Bearing Analysis
- Concrete Corrosion and Durability
- Non-Destructive Testing Techniques
- High-Velocity Impact and Material Behavior
- Nuclear Materials and Properties
- Metal Alloys Wear and Properties
- Numerical methods in engineering
- Engineering Structural Analysis Methods
- Structural Behavior of Reinforced Concrete
- Microstructure and mechanical properties
- Fire effects on concrete materials
- Welding Techniques and Residual Stresses
- Mechanical Behavior of Composites
- Engineering Diagnostics and Reliability
- High Temperature Alloys and Creep
- Metal and Thin Film Mechanics
- Structural Integrity and Reliability Analysis
Universidad de Salamanca
2015-2024
Structural Integrity Associates (United States)
2018
University of Edinburgh
2009
Universidade da Coruña
1992-2001
Pidstryhach Institute for Applied Problems of Mechanics and Mathematics
1998
Universidad Complutense de Madrid
1991-1993
Universidad Politécnica de Madrid
1991-1992
Continuum modelling of hydrogen diffusion in metals, which accounts for both trapping and an imposed force field, is revisited. A generalised model developed as a continuous interpretation the discrete random-walk theory. system nonlinear equations describing phenomenon with multiple types traps derived without assumption local equilibrium among populations dissimilar positions. Lattice-trap interchange kinetics can degenerate into limit case. Moreover, certain terms general may be...
This paper focuses on the study of tensile fracture behaviour prismatic notched specimens cold drawn pearlitic steel, providing a macro- and micro-approach. Two types samples with very different notch radius (sharp blunt notches, PAA PCC) same depth were studied, thereby allowing under levels stress triaxiality (constraint) in experimental specimen. The studied are machined from steel wires taken real drawing chain, analysing entire process, initial base material (hot rolled bar; not at all)...
This article deals with the relationship between microstructure and both strength ductility in eutectoid pearlitic steel. It is seen how standard mechanical properties fracture micromechanisms are affected by heat treatment resulting material. The yield stress, ultimate tensile (measured means of reduction area) exhibit a rising trend increasing cooling rate (associated smaller pearlite interlamellar spacing lower colony size), while strain for maximum load shows decreasing tendency...
In this paper a study is presented of the tensile fracture behavior progressively-drawn pearlitic steels obtained from five different cold-drawing chains, including each drawing step initial hot-rolled bar (not cold-drawn at all) to final commercial product (pre-stressing steel wire). To end, samples wires were tested up by means standard tension tests, and later, all surfaces analyzed scanning electron microscopy (SEM). Micro-fracture maps (MFMs) assembled characterize fractographic modes...
This paper studies the relationship between microstructural changes caused by cold drawing process in pearlitic steel wires (axial orientation of lamellae together with decrease average interlamellar spacing) and improvement their mechanical properties. The strength is related to plastic strain means Embury-Fisher equation, also a new Hall–Petch expression, where calculate distance barriers against dislocational movement one must consider, apart from spacing, angle. A modelling evolution was...
This paper offers a numerical approach to the problem of hydrogen embrittlement and notch tensile strength pearlitic steel in presence sharp blunt notches by using finite element method determine how geometry influences notch-tip diffusion affected stress strain fields steady-state regime for different loading values. Numerical results show that point maximum hydrostatic (towards which is transported mechanism stress-assisted diffusion) shifts from tip inner points specimen under increasing...