Results 221 to 230 of about 30,966 (260)

Shear Fracture – Testing Mode II and Determining Fracture Toughness

Applied Mechanics and Materials, 2016
The best way how to test fracture mode II and determinate the critical factor KII of cement paste beams is investigated. Several methods are presented and the test based on a theory of the double-edge notched infinite plate is described in detail and will be carry out.
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Shear and mode II fracture of PUR foams

Engineering Failure Analysis, 2015
Abstract Polyurethane (PUR) foam materials are widely used as cores in sandwich composites, for packing and cushioning. They are made of interconnected networks of solid struts and cell walls incorporating voids with entrapped gas. The main characteristics of foams are lightweight, high porosity, high crushability, and good energy absorption capacity.
Liviu Marsavina, Dan M. Constantinescu, Emanoil Linul, Tudor Voiconi, Dragos A. Apostol   +4 more
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Further development of fracture test in mode II

International Journal of Fracture, 1986
Geometrie du specimen utilise dans les echantillons sol-ciment en mode II. Les series des essais sont realises sur des specimens de mortier pour determiner les valeurs de la tenacite a la rupture en utilisant un dispositif de ...
J. Davies, K. W. So
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Mixed mode (Mode I-II) fracturing of rocks

2010
A major challenge in rock fracture mechanics research at its current stage of development is the extrapolation of parameter values measured at laboratory-scale on small, intact rock specimens to large-scale jointed rock masses. Understanding crack growth is therefore very important for assessing the stability of rock masses/materials and for the sage ...
Erarslan, N., Williams, D. J.
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Mode II fracture toughness of 4340 steel

Engineering Fracture Mechanics, 1985
Abstract A new specimen and a test procedure for the determination of mode II fracture toughness ae presented. Preliminary tests on 4340 steel indicated that kIIQ may increase with hardness. kIIQ was estimated as 139.1 and 101.2 MPa√m for respective HRC values of 44 and 33.
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Fracture toughness of aged dental composites in combined mode I and mode II loading

Journal of Biomedical Materials Research, 2000
Resin-based laboratory dental composites for prosthetic restorations have been developed in the past years as a cost-effective alternative to conventional porcelain-fused-to-metal or full ceramic restorations. The fracture toughness at different stress states (K(Ic), K(IIc), and mixed-modes K(I), K(II) ) was assessed for three laboratory dental ...
Scherrer, S. S., Botsis, J., Studer, M., Pini, M., Wiskott, H. W. A., Belser, U. C.   +5 more
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Mode II Fracture Behaviour of Oriented PVC Pipe

Oriented poly vinyl chloride (PVC) is extruded PVC pipe that has subsequent deformation processes performed on it to impose molecular orientation in the critical directions.Oriented PVC is mainly used for water reticulation. It was first commercially made in Australia by Vinidex Tubemakers Pty Ltd in 1984.
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Fracture Energy in Mode I and Mode II of Textile Reinforced Wood

2008
Textile reinforcement in timber constructions enables substantial improvement of load bearing behaviour. Failures in wood due to insufficient strength perpendicular to grain caused by anisotropy are reduced. Durability of especially unprotected outdoor applications is increased, too.
R. Putzger, P. Haller
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Investigation of wood fracture toughness using mode II fracture (shearing)

Journal of Materials Science, 1995
The test results of fracture toughness for three wood species, such as pine, alder and birch are presented. Examination of fracture toughness is carried out using mode II fracture (shearing). Values of the stress intensity factor, K,c, are determined for the three main anatomic directions of wood.
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Mode I Preloading-Mode II Fracture in Warm Pre-Stressing

2008
The loading history of cracked specimens plays an important role in their in-use behavior. Warm Pre-stressing (WPS) can be mentioned as a pre-loading procedure that significantly changes the apparent fracture toughness in some steels. In this procedure the specimen is subjected to a preload in high temperature and is used in a lower service temperature.
M. R. Ayatollahi, M. Mostafavi
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