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School of Engineering: Recent submissions

  • Confinement Effectiveness in Rectangular Concrete Columns with Fiber Reinforced Polymer Wraps 
    Tabbara, Mazen; Karam, Gebran (2016-02-10)
    An innovative mechanistic based method for passive confinement efficiency estimation is proposed based on the extension to rectangular sections of the pulley model previously proposed by the writers. A refined finite element ...
  • Corner effects in CFRP-wrapped square columns 
    Tabbara, Mazen; Karam, Gebran (2016-02-10)
    An experimental investigation of the corner sharpness effect in square columns with carbon fibre-reinforced polymer (CFRP) wraps is presented using traditional compressive testing of short square columns as well as an ...
  • Simulations of the penetration of 6061-T6511 aluminum targets by spherical-nosed VAR 4340 steel projectiles 
    Warren, Thomas; Tabbara, Mazen (2016-02-10)
    In certain penetration events it is proposed that the primary mode of deformation of the target can be approximated by known analytical expressions. In the context of an analysis code, this approximation eliminates the ...
  • A computational method for quasi-static fracture 
    Tabbara, Mazen; Stone, C.M. (2016-02-10)
    A direct method for solving quasi-static, mixed-mode fracture problems is presented. The element-free Galerkin method is used in order to allow for crack growth without remeshing. An expression for the normalized, critical ...
  • Dynamic fracture using element-free Galerkin methods 
    Belytschko, T.; Tabbara, Mazen (2016-02-10)
    The element-free Galerkin method for dynamic crack propagation is described and applied to several problems. This method is a gridless method, which facilitates the modelling of growing crack problems because it does not ...
  • Element-free Galerkin method for wave propagation and dynamic fracture 
    Belytschko, T.; Lu, Y.Y.; Tabbara, Mazen (2016-02-10)
    Element-free Galerkin method (EFG) is extended to dynamic problems. EFG method, which is based on moving least square interpolants (MLS), requires only nodal data; no element connectivity is needed. This makes the method ...
  • Element-free galerkin methods for static and dynamic fracture 
    Tabbara, Marc; Belytschko, T.; Lu, Y.Y. (2016-02-10)
    Element-free Galerkin (EFG) methods are presented and applied to static and dynamic fracture problems. EFG methods, which are based on moving least-square (MLS) interpolants, require only nodal data; no element connectivity ...
  • Finite element derivative recovery by moving least square interpolants 
    Tabbara, Mazen; Blacker, Ted; Belytschko, Ted (2016-02-10)
    A simple, accurate technique for recovery of displcements and derivatives, such as strains is presented. The technique is based on local interpolation of nodal displacements using a moving least square method. The strains ...
  • H-Adaptive finite element methods for dynamic problems, with emphasis on localization 
    Tabbara, Mazen; Belytschko, T. (2017-05-23)
    H-adaptive procedures for the finite element solution of transient solid mechanics problems are studied, with particular emphasis on problems involving localization due to material instability. Various types of error ...
  • A new method of analysis for slender columns 
    Zdenek, P.; Bazant, Luigi Cedolin; Tabbara, Mazen (2017-04-26)
    This paper presents a simple new method to calculate column-interaction diagrams, which takes into account slenderness effects. The method consists of a simple incremental-loading algorithm that traces the load-deflection ...
  • Service level agreement in optical networks 
    Du-Pond, Michel; Audouin, Olivier; Berde, Bela; Daheb, Belkacem; Fawaz, Wissam; Pujolle, Guy; Vigoureux, Martin (2017-04-07)
    This article proposes a Service Level Agreement applied to the optical domain (O-sla), which is expected to be the near and long term network technology thanks, among other things, to the great bandwidth capacity offered ...
  • Service level agreement and provisioning in optical networks 
    Fawaz, Wissam; Daheb, Belkacem; Audouin,Olivier; Pujolle, Guy (2016-02-05)
    This article proposes a service level agreement applied to the optical domain (O-SLA), which is expected to be the near- and long-term network technology of the great bandwidth capacity offered by optical devices. After ...
  • A novel fault management approach for DWDM optical networks 
    Fawaz, W.; Martignon, F.; Chen, K.; Pujolle, G. (2016-02-05)
    Connection availability is considered as a critical metric when providing differentiated services in Wavelength-Division Multiplexing mesh networks. Indeed, one of the major concerns of optical network operators is related ...
  • Priority-enabled optical shared protection 
    Fawaz, W.; Chen, K.; Pujolle, G. (2016-02-05)
    The availability of an optical connection is considered to be a critical service differentiator in WDM optical networks. In this regard, the design of a protection scheme that is able to improve the availability of high ...
  • A Novel Connection Setup Management Approach for Optical WDM Networks 
    Fawaz, Wissam; Abou-Rjeily, Chadi (2016-02-05)
    Wavelength Division Multiplexing (WDM) has significantly increased the transmission capacity of today's optical networks. An increase in the available bandwidth is promoting at the same time the introduction of new services, ...
  • Distributed Information-Lossless Space-Time Codes for Amplify-and-Forward TH-UWB Systems 
    Abou-Rjeily, Chadi; Fawaz, Wissam (2016-02-05)
    In this paper, we extend the non-orthogonal amplify-and-forward (NAF) cooperative scheme to the context of impulse radio ultra-wideband (UWB) systems. In particular, we consider the problem of distributed space-time (ST) ...
  • Space-Time Codes for MIMO Ultra-Wideband Communications and MIMO Free-Space Optical Communications with PPM 
    Abou-Rjeily, Chadi; Fawaz, Wissam (2017-08-10)
    In this paper, we consider the problem of space-time (ST) coding with pulse position modulation (PPM). While all the existing ST block codes necessitate rotating the phase or amplifying the amplitude of the transmitted ...
  • Priority-aware optical shared protection 
    Fawaz, Wissam; Sawah, Timothy; Abou-Rjeily, Chadi (2017-07-27)
    The availability of an optical connection is considered to be a critical service differentiator in WDM optical networks. In this regard, the design of a protection scheme that improves the availability of high priority ...
  • Incorporating mutation probability into priority-aware protection in optical networks 
    Fawaz, Wissam; Khabbaz, Maurice (2016-04-11)
    A persisting major challenge for optical network operators is to meet the various availability requirements of the different subscribed services through the deployment of effective protection strategies. Priority-aware ...
  • Networking in E-textiles 
    Nakad, Z.; Jones, M.; Martin, T.; Fawaz, W. (2016-05-16)
    The abundance of fabrics in our life offers immense possibilities for ubiquitous electronic integration. Electronic textiles (e-textiles) represent the merging of fabric and electronic technologies to be used in wearable ...

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