Crack growth in a mixed-mode loading on marble beams under three point bending

GS Xeidakis, IS Samaras, DA Zacharopoulos… - International journal of …, 1996 - Springer
A combined theoretical and experimental study of a crack growth in a mixed-mode I–II
loading is presented. A 160× 40× 20 mm marble beam, with an artificial crack 8 mm and 10 …

Trajectories of unstably growing cracks in mixed mode I–II loading of marble beams

GS Xeidakis, IS Samaras, DA Zacharopoulos… - Rock Mechanics and …, 1997 - Springer
The knowledge of the stress field under which a crack in an engineering material or a rock is
propagated and the trajectory it follows during its growth, is very important. In this paper the …

Design and construction of a vehicular bridge made of glass/polyester pultruded box beams

…, C Galiotis, T Tsiknias, D Zacharopoulos… - Plastics, rubber and …, 2005 - Taylor & Francis
The design and construction is described of a vehicle bridge made of glass-reinforced
polyester pultruded box beams. The bridge has a simply supported span 11· 6 m long and 4 …

Mixed-mode crack growth in anisotropic media

EE Gdoutos, DA Zacharopoulos, EI Meletis - Engineering Fracture …, 1989 - Elsevier
The problem of an anisotropic plate with a crack inclined with respect to the principal axes of
material symmetry and the direction of the applied uniform uniaxial stress is studied. The …

Study of composite patch repair by analytical and numerical methods

…, D Rapti, EE Gdoutos, D Zacharopoulos… - Fatigue & Fracture of …, 2001 - Wiley Online Library
A combined analytical and numerical study of an isotropic cracked plate that was repaired
by using a bonded composite patch was conducted. The analytical work was based on …

Three-dimensional reconstruction of shape and piecewise constant region values for optical tomography using spherical harmonic parametrization and a boundary …

AD Zacharopoulos, SR Arridge, O Dorn… - Inverse …, 2006 - iopscience.iop.org
We consider the recovery of smooth 3D region boundaries with piecewise constant
coefficients in optical tomography. The method is based on a parametrization of the closed …

Mixed-mode crack growth in plates under three-point bending

EE Gdoutos, DA Zacharopoulos - Experimental mechanics, 1987 - Springer
A combined theoretical and experimental study of the problem of crack growth in a plate
subjected to unsymmetrical three-point bending was undertaken. The opening-mode KI and …

Stability analysis of crack path using the strain energy density theory

DA Zacharopoulos - Theoretical and Applied Fracture Mechanics, 2004 - Elsevier
Prediction of crack growth path is a pre-requisite for estimating the final shape of broken
solids and structures. Crack path in broken specimens provides information for the loading …

A matrix-free algorithm for multiple wavelength fluorescence tomography

AD Zacharopoulos, P Svenmarker, J Axelsson… - Optics express, 2009 - opg.optica.org
We show that a genetic algorithm can be used to optimize the layer thicknesses of a hollow
waveguide with a multilayer dielectric cladding. It is shown that in such" chirped" hollow …

Stress and failure analysis of brittle matrix composites. Part II: Failure analysis

EE Gdoutos, A Giannakopoulou… - International Journal of …, 1999 - Springer
A linear elastic fracture mechanics analysis of a cylindrical element of matrix with a single
fiber and two matrix annular cracks perpendicular to the fiber direction under longitudinal …