Publication
Damage accumulation during cyclic loading of a continuous alumina fibre reinforced aluminium composite
Related publications (40)
An iterative analytical/experimental study of bridging in delamination of the double cantilever beam specimen
Anastasios Vassilopoulos, John Botsis, Behzad Dehghan Manshadi, Ebrahim Farmand Ashtiani
Large scale bridging in mode-I delamination of layered composites is an important toughening mechanism. While its extent depends on constituent materials, it is also influenced by specimen geometry. Here, an analytical approach is adopted to express the th ...
Elsevier2014Analytical modeling of local stresses at Balsa/timber core joints of FRP sandwich structures
Thomas Keller, Anastasios Vassilopoulos, Julia De Castro San Roman Fest, Michael Osei-Antwi
In order to optimize sandwich structures, core materials of different density and thus different stiffness and strength are often combined. The material discontinuities at joints of dissimilar core materials may lead to abrupt changes of the shear angles a ...
Elsevier2014Experimental investigation and modelling of the structural behaviour of confined grouted interfaces for a new steel–concrete connection
Jean-Paul Lebet, Dimitrios Papastergiou
Confined interfaces between cement grout and other materials such as embossed steel or rough concrete are formed in an innovative new steel-concrete connection for composite bridges. This article presents the experimental study of such interfaces and inves ...
Elsevier2014Optimization of Digital Image Correlation for High-Resolution Strain Mapping of Ceramic Composites
Digital image correlation (DIC) is assessed as a tool for measuring strains with high spatial resolution in woven-fiber ceramic matrix composites. Using results of mechanical tests on aluminum alloy specimens in various geometric configurations, guidelines ...
2012Effects of non-uniform strains on tensile fracture of fiber-reinforced ceramic composites
Effects of non-uniform strains on tensile fracture of fiber-reinforced ceramic–matrix composites have not been satisfactorily explained by existing mechanics-based models. In this paper, we use an exact model of fiber fragmentation under global load sharin ...
Elsevier2012Neutron diffraction investigations on residual stresses contributing to the fatigue crack growth in ferritic steel tubular bridges
Alain Nussbaumer, Claire Acevedo
Fatigue crack growth observed in tubular K-joint specimens, typical of tubular bridge structures, always initiates at the chord crown toe locations whether the applied stress range is tensile or compressive. Even though other locations around the weld have ...
Elsevier2012An experimental-numerical study of moisture absorption in an epoxy
John Botsis, Marco Lai, Joël Cugnoni, Dragan Coric
It is well known that moisture absorption impairs the mechanical and physical properties of polymers. Conventionally, the material's hygric strains are described as the product of a constant coefficient of moisture expansion (CME) and moisture concentratio ...
2012Wind Tunnel Studies of Shear Stress Partitioning in Live Plant Canopies
The earth's surface is permanently exposed to the atmosphere and accordingly to strong wind forces in many regions. Aerodynamic entrainment, transport and redeposition of sand, soil or snow are able to considerably reshape the surface morphology and influe ...
EPFL2012Nonlocal continuum crystal plasticity with internal residual stresses
We derive a three-dimensional constitutive theory accounting for length-scale dependent internal residual stresses in crystalline materials that develop due to a non-homogeneous spatial distribution of the excess dislocation (edge and screw) density. The s ...
Elsevier2011Fatigue and cyclic creep of replicated microcellular aluminium
Andreas Mortensen, Sébastien Philippe Soubielle, Frédéric Diologent
The cyclic behaviour of 400 mu m pore size replicated aluminium foam is assessed in tension-tension fatigue with a stress ratio equal to 0.1, keeping the load amplitude constant, for relative density values comprised between 0.175 and 0.220. The number of ...
Elsevier2011