Luis P. Canal
École Polytechnique Fédérale de Lausanne
Composite numberMatrix (chemical analysis)Interface (computing)Digital image correlationMode (statistics)DissipationFinite element methodMatrix (mathematics)Multiscale modelingResidualComposite materialEpoxyAbsorption of waterBridging (networking)Glass fiberHardening (metallurgy)Materials scienceRange (mathematics)LawDeformation (meteorology)Volume (thermodynamics)Scheme (programming language)Scanning electron microscopeVacuum assisted resin transfer moldingPolyurethaneVirtual testMicromechanicsThermal diffusivityFiber Bragg gratingFracture (geology)Thermal expansionFiber-reinforced compositeDisplacement (vector)Cohesive zone modelFracture mechanicsAdhesiveDynamic mechanical analysisDelaminationSmart materialGravimetric analysisFracture toughness
26Publications
11H-index
662Citations
Publications 25
Newest
#1Davi M. MontenegroH-Index: 4
#2Luis P. Canal (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 11
Last. Konrad Wegener (ETH Zurich)H-Index: 44
view all 6 authors...
Abstract The determination of the fracture toughness of fiber-reinforced polymers (FRPs) exhibiting significant nonlinear material behavior requires the use of methods that take into account the contribution of nonlinear phenomena on the computation of the crack driving force. While the J -integral method has been standardized (ASTM E1820) and extensively used to quantify the fracture toughness of homogeneous nonlinear materials, its validity to unidirectional FRPs remains uncertain. This work a...
4 CitationsSource
#1A. Bimis (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 1
#2Luis P. Canal (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 11
Last. John Botsis (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 37
view all 4 authors...
Abstract Objective To perform a mechanical characterization of a self-setting calcium phosphate cement in function of the immersion time in Ringer solution. Materials and methods Specimens of self-setting calcium phosphate cement were prepared from pure α-TCP powder. The residual strains developed during hardening stage were monitored using an embedded fiber Bragg grating sensor. Additionally, the evolution of the elastic modulus was obtained for the same time period by conducting low-load inden...
1 CitationsSource
#1Luis P. Canal (École Polytechnique)H-Index: 11
#2Marco Alfano (University of Calabria)H-Index: 20
Last. John Botsis (École Polytechnique)H-Index: 37
view all 3 authors...
Abstract A cohesive zone model (CZM) is proposed to assess the thickness scaling effect associated with fiber bridging during fracture. The CZM was developed through a multi-scale simulation approach and utilizes an embedded cell model of the Double Cantilever Beam (DCB) that explicitly accounts for the bridging bundles on the fracture plane. In particular, micromechanical simulations of failure were carried out, for varying arms thickness, in order to determine the homogenized fracture behavior...
26 CitationsSource
#1Davi M. MontenegroH-Index: 4
#2Luis P. CanalH-Index: 11
Last. Konrad WegenerH-Index: 44
view all 6 authors...
#1John Botsis (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 37
#2E. Farmand-Ashtiani (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 1
Last. Luis P. Canal (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 11
view all 5 authors...
It is well known that large-scale bridging accompanying delamination and fracture in layered composites is among the most important toughening mechanisms. The resulting resistance to fracture, however, is dependent on the specimen geometry rendering its modeling difficult. As a consequence, characterization of the tractions on the wake of the crack, the so-called bridging zone, is very important in the efforts to predict the loading response of composite structures. In this chapter, experimental...
Source
#1G. Pappas (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 8
#2Luis P. Canal (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 11
Last. John Botsis (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 37
view all 3 authors...
Abstract A detailed experimental-numerical study of large scale bridging during intralaminar fracture of AS4/PPS uniaxial thermoplastic composite is reported. Identification of bridging tractions is carried out using: (a) An inverse identification method based on quasi-distributed strain data from fiber Bragg gratings, FE modeling and optimization; both small and large displacements are considered in the simulations resulting in negligible differences between the bridging tractions and of about ...
17 CitationsSource
#1Meisam Jalalvand (UoB: University of Bristol)H-Index: 19
#2Gergely Czél (BME: Budapest University of Technology and Economics)H-Index: 14
Last. Javier LLorca (UPM: Technical University of Madrid)H-Index: 73
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This paper presents detailed experimental information on mode-II delamination development in fibre/epoxy composite materials and provides observations about the process zone in the vicinity of the crack tip. It is shown that the energy dissipated in delamination propagation is spent on two ways (i) creating new fracture surfaces (delamination) and (ii) nonlinear shear deformation in the composite plies adjacent to the delaminating interface. Therefore, the nonlinear process zone is not restricte...
15 CitationsSource
#1Luis P. Canal (École Polytechnique)H-Index: 11
#2G. Pappas (École Polytechnique)H-Index: 8
Last. John Botsis (École Polytechnique)H-Index: 37
view all 3 authors...
Abstract Fiber reinforced composites can develop large scale bridging upon mode I fracture. This toughening mechanism depends on the constituents and the geometry of the specimen, and is especially important in unidirectional laminates when fracture is parallel to the fibers. The mode I intralaminar fracture behavior of unidirectional carbon-epoxy laminates was investigated by means of a three-dimensional multiscale model based on an embedded-cell approach. A double cantilever beam specimen was ...
19 CitationsSource