Search Results - "Kourkoulis, S. K."

The standardized Brazilian disc test as a contact problem by Kourkoulis, S.K., Markides, Ch.F., Chatzistergos, P.E.

“…The standardized Brazilian disc test is revisited considering the disc-jaw complex as a system of two elastic bodies in contact. The aim of the study is to…”
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The Stress Field in a Standardized Brazilian Disc: The Influence of the Loading Type Acting on the Actual Contact Length by Markides, Ch. F., Kourkoulis, S. K.

“…The aim of the present study was to determine the stress field developed in a Brazilian disc under conditions closely approaching those of the actual test…”
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Stresses and displacements in a circular ring under parabolic diametral compression by KOURKOULIS, S. K, MARKIDES, Ch. F

“…The response of a linear elastic circular ring to a parabolic distribution of radial pressure, imposed along two symmetric arcs of its outer perimeter, is…”
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The Brazilian disc under non-uniform distribution of radial pressure and friction by Markides, Ch.F., Pazis, D.N., Kourkoulis, S.K.

“…The stress field developed in an intact Brazilian disc is determined assuming that the externally imposed radial pressure is not uniform but rather it varies…”
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Closed full-field solutions for stresses and displacements in the Brazilian disk under distributed radial load by Markides, Ch.F., Pazis, D.N., Kourkoulis, S.K.

“…The Brazilian disk test, namely the diametric compression of a circular disk by radial loads that are uniformly distributed along two symmetric arcs of its…”
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Naturally Accepted Boundary Conditions for the Brazilian Disc Test and the Corresponding Stress Field by Markides, Ch. F., Kourkoulis, S. K.

“…The stress field developed in the Brazilian disc is determined assuming that the disc is under the influence of a combination of two load distributions, namely…”
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Stress intensity factors for the Brazilian disc with a short central crack: Opening versus closing cracks by Markides, Ch.F., Pazis, D.N., Kourkoulis, S.K.

“…Closed form expressions are obtained for the stress intensity factors (SIFs) in case of a Brazilian disc with a short central crack, the length of which does…”
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Influence of Friction on the Stress Field of the Brazilian Tensile Test by Markides, C. F., Pazis, D. N., Kourkoulis, S. K.

“…The friction stresses developed between the specimen and the loading platens in the Brazilian tensile test are usually neglected in most of the theoretical…”
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Hidden Affinities Between Electric and Acoustic Activities in Brittle Materials at Near-Fracture Load Levels by Triantis, D., Pasiou, E. D., Stavrakas, I., Kourkoulis, S. K.

“…The time evolution of the electric activity in brittle materials, mechanically loaded at levels approaching the ones causing catastrophic fracture, is studied…”
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Natural time analysis of acoustic emissions before fracture: Results compatible with the Bak-Tang-Wiesenfeld model by Loukidis, A., Perez-Oregon, J., Pasiou, E. D., Kourkoulis, S. K., Sarlis, N. V., Triantis, D.

“…Abstract Natural time analysis has been recently applied for the elaboration of data recorded by means of the Acoustic Emission (AE) sensing technique while…”
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Optimizing fixation methods for stable and unstable intertrochanteric hip fractures treated with sliding hip screw or cephalomedullary nailing: A comparative biomechanical and finite element analysis study by Kyriakopoulos, G., Panagopoulos, A., Pasiou, E., Kourkoulis, S.K., Diamantakos, I., Anastopoulos, G., Tserpes, K., Tatani, I., Lakoumentas, J., Megas, P.

“…Despite recent advances in implants and surgical techniques, catastrophic and clinical failures in the treatment of intertrochanteric fractures continue to…”
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Improved strain sensing performance of glass fiber polymer composites with embedded pre-stretched polyvinyl alcohol–carbon nanotube fibers by Alexopoulos, N.D., Jaillet, C., Zakri, C., Poulin, P., Kourkoulis, S.K.

“…Polyvinyl alcohol–carbon nanotube (PVA–CNT) fibers differing on their pre-stretching condition were embedded in glass fiber reinforced plastic (GFRP)…”
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Notched marble plates under tension: Detecting prefailure indicators and predicting entrance to the “critical stage” by Kourkoulis, S.K., Pasiou, E.D., Dakanali, I., Stavrakas, I., Triantis, D.

“…The potentialities of the pressure stimulated currents technique to be used as a continuous structural health monitoring tool in applications related to stone…”
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Marble epistyles under shear: An experimental study of the role of “Relieving Space” by Pasiou, E. D., Stavrakas, I., Triantis, D., Kourkoulis, S. K.

“…The mechanical response of mutually interconnected epistyles is studied experimentally. The specimens are made of two marble blocks connected to each other…”
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Analytic solution for the stress field in an orthotropic disc under diametral parabolic pressure by Markides, Ch.F., Kourkoulis, S.K.

“…A full-field analytic solution for the stress field developed in a circular disc made of an orthotropic material is obtained assuming that the disc is under…”
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Experimental study of the size- and shape-effects of natural building stones by Kourkoulis, S.K., Ganniari-Papageorgiou, E.

“…The dependence of the mechanical properties of natural building stones on the size and the shape of the specimens is studied experimentally. Attention is…”
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Influence of nonlinearity and double elasticity on flexure of rock beams — II. Characterization of Dionysos marble by Exadaktylos, G.E., Vardoulakis, I., Kourkoulis, S.K.

“…A technical bending theory of beams accounting for nonlinearity due to damage and bimodularity of brittle rocks was proposed in Part I. In order to check the…”
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Dionysos marble beams under bending: A contribution towards understanding the fracture of the Parthenon architraves by Kourkoulis, S.K., Ganniari-Papageorgiou, E., Mentzini, M.

“…The response of either intact or fractured and restored marble architraves under bending is the object of the present paper. The study is motivated by the…”
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‘Mathematical’ Cracks Versus Artificial Slits: Implications in the Determination of Fracture Toughness by Markides, Ch. F., Kourkoulis, S. K.

“…An analytic solution is introduced for the stress field developed in a circular finite disc weakened by a central slit of arbitrary ratio of its edges and…”
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U-notched Dionysos-Pentelicon marble beams in three point bending : The effect of nonlinearity, anisotropy and microstructure by KOURKOULIS, S. K, EXADAKTYLOS, G. E, VARDOULAKIS, I

“…The failure of notched beams made from Dionysos-Pentelicon marble is studied in the present work, both experimentally and numerically. A series of properly…”
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