Zobrazeno 1 - 10
of 75
pro vyhledávání: '"G. G. Portnov"'
Publikováno v:
Mechanics of Composite Materials. 50:39-50
A finite element analysis is carried out to determine the stress-strain state of anchors for round rods made of a high- modulus, high-strength unidirectional carbon-fiber reinforced plastic. The rods have splitted ends in which Duralumin wedges are g
Publikováno v:
Mechanics of Composite Materials. 49:595-604
The effectiveness of fastening of high-strength unidirectional CFRP/epoxy rods in potted anchors was investigated experimentally. The rods had splitted ends, in which duralumin wedges were glued. The experiments, performed for three types of contact
Publikováno v:
Mechanics of Composite Materials. 49:457-474
Designs of grips for flat strips made of fiber-reinforced polymers (FRPs) are put forward. They can be used for tests in tension, prestretching, and long-term loading. In order to prevent the rise of stress concentrations, special profiled grips with
Publikováno v:
Mechanics of Composite Materials. 49:381-400
It is been suggested to devide all FRP reinforcing bars into three groups in accordance with the method used for establishing a bond between the core of the bars and concrete. Patents related to each group are cited and briefly described. At the end
Publikováno v:
Mechanics of Composite Materials. 47:285-300
An analytical model for estimating the load-carrying capacity of cylindrical potted anchors with round rods made of high-strength composites is developed taking into account a partial debonding at the rod-pottant interface under tension loading. A de
Publikováno v:
Mechanics of Composite Materials. 46:133-146
Our previous investigation into the means for decreasing the peak interfacial shear stress in bond-type anchors for fiber-reinforced polymer rods [1, 2] is extended to include the case where the bonded length of the rod is divided into two regions, e
Publikováno v:
Mechanics of Composite Materials. 45:381-398
The key problem facing the application of FRP stay cables and tendons is the anchor age. In the first part of the investigation, a model of a potted (bond-type) anchor was proposed, and a parametric analysis of the solution for the distribution of th
Autor:
Charles E. Bakis, G. G. Portnov
Publikováno v:
Composite Structures. 83:100-109
The stress state in a solid round transversely isotropic rod loaded with balanced shear stresses on a part of its lateral surface is considered. The change in gripping conditions is simulated by varying the distribution of statically equivalent shear
Publikováno v:
Mechanics of Composite Materials. 43:503-512
The influence of a preliminary bending induced by misalignment of the grips of a testing machine on the stress-strain state of a flat specimen made of a high-strength unidirectional carbon fiber composite under uniaxial tension is estimated. An analy
Publikováno v:
Mechanics of Composite Materials. 43:29-40
A detailed finite-element analysis of the stress-strain state in the load transfer zone of uneasily tensioned flat test specimens made of a high-strength unidirectional carbon fiber-epoxy composite is carried out with account of the elastoplastic beh