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D J Oehlers - One of the best experts on this subject based on the ideXlab platform.

  • generic debonding resistance of eb and nsm Plate to concrete joints
    Journal of Composites for Construction, 2007
    Co-Authors: R Seracino, Raizal M Saifulnaz, D J Oehlers
    Abstract:

    It is well established that Adhesively bonding Plates to the surfaces of reinforced concrete members is an efficient retrofitting approach. Specifically, two techniques have emerged: Using thin externally Bonded (EB) sheets/Plates and near-surface mounted (NSM) strips/bars. A good amount of research has been undertaken worldwide to understand the fundamental behavior describing such Adhesively Bonded Plate-to-concrete joints. Unfortunately, until now, no generic model exists to determine the debonding resistance of both retrofitting techniques. In this paper, a generic analytical model is derived to determine the debonding resistance of any Adhesively Bonded Plate-to-concrete joint using an idealized linear-softening local interface bond-slip relationship. The model is derived using a unique definition of the debonding failure plane and confinement ratio such that it is suitable for both the externally Bonded and near-surface mounted techniques. The model is validated by comparison with existing push-pull...

R Seracino - One of the best experts on this subject based on the ideXlab platform.

  • generic debonding resistance of eb and nsm Plate to concrete joints
    Journal of Composites for Construction, 2007
    Co-Authors: R Seracino, Raizal M Saifulnaz, D J Oehlers
    Abstract:

    It is well established that Adhesively bonding Plates to the surfaces of reinforced concrete members is an efficient retrofitting approach. Specifically, two techniques have emerged: Using thin externally Bonded (EB) sheets/Plates and near-surface mounted (NSM) strips/bars. A good amount of research has been undertaken worldwide to understand the fundamental behavior describing such Adhesively Bonded Plate-to-concrete joints. Unfortunately, until now, no generic model exists to determine the debonding resistance of both retrofitting techniques. In this paper, a generic analytical model is derived to determine the debonding resistance of any Adhesively Bonded Plate-to-concrete joint using an idealized linear-softening local interface bond-slip relationship. The model is derived using a unique definition of the debonding failure plane and confinement ratio such that it is suitable for both the externally Bonded and near-surface mounted techniques. The model is validated by comparison with existing push-pull...

Raizal M Saifulnaz - One of the best experts on this subject based on the ideXlab platform.

  • generic debonding resistance of eb and nsm Plate to concrete joints
    Journal of Composites for Construction, 2007
    Co-Authors: R Seracino, Raizal M Saifulnaz, D J Oehlers
    Abstract:

    It is well established that Adhesively bonding Plates to the surfaces of reinforced concrete members is an efficient retrofitting approach. Specifically, two techniques have emerged: Using thin externally Bonded (EB) sheets/Plates and near-surface mounted (NSM) strips/bars. A good amount of research has been undertaken worldwide to understand the fundamental behavior describing such Adhesively Bonded Plate-to-concrete joints. Unfortunately, until now, no generic model exists to determine the debonding resistance of both retrofitting techniques. In this paper, a generic analytical model is derived to determine the debonding resistance of any Adhesively Bonded Plate-to-concrete joint using an idealized linear-softening local interface bond-slip relationship. The model is derived using a unique definition of the debonding failure plane and confinement ratio such that it is suitable for both the externally Bonded and near-surface mounted techniques. The model is validated by comparison with existing push-pull...

Raizal Saifulnaz M. - One of the best experts on this subject based on the ideXlab platform.

  • Towards a generic model of the intermediate crack debonding resistance of Plates Adhesively Bonded to concrete
    'The University of Hong Kong Libraries', 2005
    Co-Authors: Seracino R., Oehlers D., Raizal Saifulnaz M.
    Abstract:

    © 2005 International Institute for FRP in ConstructionNumerous models have been published to predict the maximum intermediate crack (IC) debonding force in Adhesively Bonded Plate-to-concrete joints. However, none of the models are generic in that they are only applicable to a particular retrofitting technique, and they are not explicitly a function of the fundamental property of Adhesively Bonded Plate-to-concrete joints, that is the interface shear stress – slip relationship. This paper presents a generic model to determine the IC debonding force that is a function of the interface shear stress and slip and the debonding failure plane, which is applicable to both the externally Bonded and nearsurface mounted retrofitting techniques.R. Seracino, D.J. Oehlers and M.R. Raizal Saifulna

Yuceoglu Umur - One of the best experts on this subject based on the ideXlab platform.

  • Free Vibrations of Composite Plates Stiffened by Two Adhesively Bonded Plate Strips
    'American Institute of Aeronautics and Astronautics (AIAA)', 2012
    Co-Authors: Javanshir Jaber, Farsadi Touraj, Yuceoglu Umur
    Abstract:

    In this study, the free flexural (or bending) vibration response of composite base-Plate or panel systems stiffened by two Adhesively Bonded Plate strips are theoretically analyzed in detail and numerically solved in terms of the mode shapes with their natural frequencies. Additionally, some important parametric studies are also included in the present study. The aforementioned Bonded and stiffened system is composed of an orthotropic Mindlin base Plate or panel stiffened or reinforced by the dissimilar, orthotropic two-Bonded stiffened-Plate strips. The two relatively thin, in-between adhesive layers are assumed as the linearly elastic continua with dissimilar material properties. The Plate elements of the system are analyzed in terms of the Mindlin Plate theory, which takes into account the transverse (or bending) and the rotatory moments of inertia as well as the normal and the transverse shear deformations. The dynamic equations of each Plate element of the system are combined together with the stress resultant displacement expressions and, where appropriate, with the adhesive-layer equations. After some manipulations and combinations, the aforementioned dynamic equations are finally reduced to a new set of the governing system of the first-order ordinary differential equations in the state vector forms. These equations are numerically integrated by means of the modified transfer matrix method (with interpolation polynomials). In the numerical results, the mode shapes with their natural frequencies, up to the sixth mode, are graphically presented, for various sets of the boundary conditions. The significant effects of some of the important parameters, such as the aspect ratio, the stiffener length (or width) ratio, and the bending stiffness ratio on the natural frequencies, are studied and presented up to the sixth mode for several sets of the support conditions. The serious influence of the adhesive-layer material characteristics on the mode shapes and on the natural frequencies in terms of the hard (or relatively still) and the soft (or relatively flexible) adhesive layers are also investigated and are shown for the various sets of the support conditions. Furthermore, some very important conclusions related to the analysis and the design of such Bonded and stiffened systems are presented