Anoush Poursartip
University of British Columbia
Composite numberUltimate tensile strengthCuring (chemistry)Finite element methodComposite laminatesComposite materialEpoxyThermosetting polymerProcess simulationMaterials scienceCompactionConstitutive equationPlane stressResidual stressComputer scienceComputer simulationFracture mechanicsStructural engineeringDelaminationStress (mechanics)
104Publications
28H-index
2,442Citations
Publications 104
Newest
#1Cheng Chen (UBC: University of British Columbia)H-Index: 1
#2Anoush Poursartip (UBC: University of British Columbia)H-Index: 28
Last. Göran Fernlund (UBC: University of British Columbia)H-Index: 15
view all 3 authors...
Abstract This work investigates the effect of the glass transition of interlaminar toughening particles on the in-plane ( G 12 ) and out-of-plane ( G 13 ) lamina shear modulus during cure for an interlayer toughened prepreg system, Toray T800SC/3900-2B. The dependence of lamina G 12 and G 13 on temperature and degree of cure (DoC) of the resin was determined using Dynamic Mechanical Analysis (DMA). Lamina G 12 is mainly governed by resin properties, whereas lamina G 13 is additionally affected b...
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#1Navid Zobeiry (UW: University of Washington)H-Index: 10
#2Anoush Poursartip (UBC: University of British Columbia)H-Index: 28
Science-based simulation tools such as Finite Element (FE) models are routinely used in scientific and engineering applications. While their success is strongly dependent on our understanding of underlying governing physical laws, they suffer inherent limitations including trade-off between fidelity/accuracy and speed. The recent rise of Machine Learning (ML) proposes a theory-agnostic paradigm. In complex multi-physics problems, however, creating large enough datasets for successful training of...
1 Citations
#1Cheng Chen (UBC: University of British Columbia)H-Index: 1
#2Scott Nesbitt (UBC: University of British Columbia)
Last. Göran Fernlund (UBC: University of British Columbia)H-Index: 15
view all 6 authors...
Abstract Faster cure cycles are desirable to achieve higher production rates for thermoset prepreg composites. This work studies the effect of cure cycle on the static and dynamic Mode II interlaminar fracture toughness ( G I I c ) of an interlayer toughened thermoset prepreg composite, Toray T800SC/3900-2B. Unidirectional laminates with different interlayer microstructures were manufactured to the same degree of cure using cure cycles with varying heating rates (0.1-7.0 °C/min) and cure tempera...
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#1J. LoH-Index: 1
#1Suong V. HoaH-Index: 35
Last. A. NakaiH-Index: 1
view all 1 authors...
1 CitationsSource
#1Cheng Chen (UBC: University of British Columbia)H-Index: 1
#2Anoush Poursartip (UBC: University of British Columbia)H-Index: 28
Last. Göran Fernlund (UBC: University of British Columbia)H-Index: 15
view all 3 authors...
Abstract To shorten the cure cycle for thermoset prepreg composites, we can either increase the heating rate or the curing temperature. However, this raises the question whether modifying the cure cycle affects the laminate microstructure and physical and mechanical properties. Current state-of-the-art aerospace prepreg composites incorporate thermoplastic particles into the interlayer to increase delamination and impact resistance, which creates a more complicated composition and laminate micro...
3 CitationsSource
#1Enrico Zappino (Polytechnic University of Turin)H-Index: 17
#2Navid Zobeiry (UW: University of Washington)H-Index: 10
Last. Anoush Poursartip (UBC: University of British Columbia)H-Index: 28
view all 6 authors...
Abstract A computationally efficient modeling approach for the accurate evaluation of process-induced deformations and residual stresses in composite parts is presented. A family of refined one-dimensional kinematic models, developed in the framework of the Carrera Unified Formulation, has been used to predict the accurate through-thickness deformation of layered structures during the manufacturing process. The composite material curing phase has been simulated exploiting the capabilities of the...
6 CitationsSource
#1Alireza Forghani (UBC: University of British Columbia)H-Index: 7
#2Anoush Poursartip (UBC: University of British Columbia)H-Index: 28
Last. Reza Vaziri (UBC: University of British Columbia)H-Index: 27
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Abstract A non-local macroscopic constitutive model is presented to simulate the progression of intra-laminar damage in laminated composite structures. A novel feature of the model is an orthotropic, non-local averaging scheme that is specially designed to capture the preferred path of damage / fracture propagation in laminated structures consisting of strongly orthotropic layers. In addition to maintaining the objectivity of the numerical results, through rendering them mesh size and mesh orien...
8 CitationsSource
#1Enrico Zappino (Polytechnic University of Turin)H-Index: 17
#2Navid Zobeiry (UBC: University of British Columbia)H-Index: 10
Last. Anoush Poursartip (UBC: University of British Columbia)H-Index: 28
view all 6 authors...
Source
#1Andreas Munk (UBC: University of British Columbia)H-Index: 4
#2Adam Scibior (UBC: University of British Columbia)H-Index: 3
Last. Frank Wood (UBC: University of British Columbia)H-Index: 31
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We present a framework for automatically structuring and training fast, approximate, deep neural surrogates of existing stochastic simulators. Unlike traditional approaches to surrogate modeling, our surrogates retain the interpretable structure of the reference simulators. The particular way we achieve this allows us to replace the reference simulator with the surrogate when undertaking amortized inference in the probabilistic programming sense. The fidelity and speed of our surrogates allow fo...
5 Citations
#1Cheng ChenH-Index: 1
#2Anoush PoursartipH-Index: 28
Last. Göran FernlundH-Index: 15
view all 3 authors...
There are established process models for thermoset composites to calculate residual stress development and process-induced deformations. For thermoset composites, laminate elastic constants during cure are required for the process simulation. Matrix material properties such as bulk modulus and shear modulus develop continually as cross-linking of polymer chains progresses. Elastic constants of laminates during cure are determined from material properties of fiber and matrix, using micromechanics...
1 CitationsSource