A critical review of numerical methods for the simulation of pultruded fiber-reinforced structural elements

Fascetti, Alessandro; Feo, Luciano; Abbaszadeh, Hadi

doi:10.1016/j.compstruct.2021.114284

Cited by 18 publications

(7 citation statements)

References 141 publications

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“…The subject of the solution is then the set of 12 the first order differential equations for unknown functions y i (t), (i = 1,2, 3,4,5,6,7,8,9,10,11,12)…”

Section: Results Of Numerical Solutionmentioning

confidence: 99%

“…The numerical solution of the equations of motion was performed in the environment of MATLAB system [ 12 ]. The fourth order Runge–Kutta method was used (ode45 procedure).…”

Section: Bridge Under Consideration Discussionmentioning

confidence: 99%

“…There has not been much work completed on the study of composite beams under the action of moving loads, although several researchers have given theoretical [ 10 , 11 , 12 , 13 ], numerical [ 14 , 15 , 16 ], and experimental [ 17 , 18 , 19 ] analyses of traditional beams and plates under such conditions.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Investigation of the Dynamic Responses of Fibre-Reinforced Polymer Composite Bridge Beam Subjected to Moving Vehicle

et al. 2022

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In modern industry, heavy traditional materials are being substituted with light and strong fibre-reinforced polymer composite materials. Bridges and railroads made of composite laminates are considerably affected by traffic loads. Therefore, it is very important to analyse this effect which would find practical applications in engineering designs. This paper explains the theoretical formulation that governs the dynamic response of a composite beam subjected to a moving load. The governing equations for the dynamic effect on the laminated composite bridge beam are explained here. The main theories in the micro–macro modelling of composite laminates are also described in the paper. Within the macro modelling, the Classical Laminate and Shear Deformation Laminate Theory of beams are presented. The symmetric cross-ply laminated bridge, made of boron/epoxy is under consideration. The computational two-dimensional model of the vehicle is adopted. The governing equations for the dynamic effect on the laminated composite bridge beam are explained. The calculation of the time response of the bridge for the characteristic speeds of the vehicle is performed in the environment of the MATLAB software. The maximum dynamic magnification factor for the dynamic analysis of a composite beam is found.

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“…The subject of the solution is then the set of 12 the first order differential equations for unknown functions y i (t), (i = 1,2, 3,4,5,6,7,8,9,10,11,12)…”

Section: Results Of Numerical Solutionmentioning

confidence: 99%

“…The numerical solution of the equations of motion was performed in the environment of MATLAB system [ 12 ]. The fourth order Runge–Kutta method was used (ode45 procedure).…”

Section: Bridge Under Consideration Discussionmentioning

confidence: 99%

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Numerical Investigation of the Dynamic Responses of Fibre-Reinforced Polymer Composite Bridge Beam Subjected to Moving Vehicle

et al. 2022

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“…In conclusion, the results underline that the coupled nature of the local fiber volume fraction and the residual stress formation can be of critical importance when accessing the structural integrity of pultruded profiles. As, a huge effort is put on simulating the structural performance of pultruded composites [52]. We shed a light on the mesoscale nonuniformity in Vf and its effects on residual stress field, which can be further used for the structural analysis in the presence of this mesoscale nonuniformity.…”

Section: Discussionmentioning

confidence: 99%

Mesoscale Process Modeling of a Thick Pultruded Composite with Variability in Fiber Volume Fraction

et al. 2021

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Pultruded fiber-reinforced polymer composites are susceptible to microstructural nonuniformity such as variability in fiber volume fraction (Vf), which can have a profound effect on process-induced residual stress. Until now, this effect of non-uniform Vf distribution has been hardly addressed in the process models. In the present study, we characterized the Vf distribution and accompanying nonuniformity in a unidirectional fiber-reinforced pultruded profile using optical light microscopy. The identified nonuniformity in Vf was subsequently implemented in a mesoscale thermal–chemical–mechanical process model, developed explicitly for the pultrusion process. In our process model, the constitutive material behavior was defined locally with respect to the corresponding fiber volume fraction value in different-sized representative volume elements. The effect of nonuniformity on the temperature and cure degree evolution, and residual stress was analyzed in depth. The results show that the nonuniformity in fiber volume fraction across the cross-section increased the absolute magnitude of the predicted residual stress, leading to a more scattered residual stress distribution. The observed Vf gradient promotes tensile residual stress at the core and compressive residual stress at the outer regions. Consequently, it is concluded that it is essential to take the effects of nonuniformity in fiber distribution into account for residual stress estimations, and the proposed numerical framework was found to be an efficient tool to study this aspect.

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“…To provide context for the research presented in this article, the main features of the LDPM are reviewed. For a thorough description of the LDPM approach, the interested reader is referred to previous works available in the literature Fascetti et al, 2018Fascetti et al, , 2021Shen et al, 2020), which discuss the main advantages in using the LDPM approach when compared to traditional methods. Three basic steps are required for the construction of LDPM realizations of concrete elements, as shown in Figure 2a.…”

Section: Ldpm Formulationmentioning

confidence: 99%

Stochastic lattice discrete particle modeling of fracture in pervious concrete

Fascetti

Ichimaru

Bolander

2022

Computer aided Civil Eng

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This article presents a stochastic modeling approach for simulating the mechanical behavior of pervious concrete, based on novel extensions of the lattice discrete particle model. Selected digital images of the internal mesostructure, obtained from physical specimens, are used to survey material features and produce statistically representative descriptions of the pore networks. A procedure for estimating the statistical features of the mesostructure is proposed, and samples of a spatially correlated random field are utilized to numerically reproduce the distribution of the large, connected pores in the material. The numerical samples are linked to the topology of the lattice network by means of two novel techniques proposed herein: (1) a random placement procedure for the poly‐sized spheres representing coarse aggregate and (2) a ray tracing technique, which is used to evaluate the effective distributions of mass, stiffness, and strength of each lattice element according to the local distribution of porosity. Numerical results demonstrate how the proposed model is capable of simulating both the large scatter in strength and the variety of failure modes that are observed when testing physical specimens of pervious concrete. The proposed procedure is generally applicable to different types of materials with varying porosity, opening up new possibilities for the simulation of porous media by means of lattice discrete particle modeling techniques.

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A critical review of numerical methods for the simulation of pultruded fiber-reinforced structural elements

Cited by 18 publications

References 141 publications

Numerical Investigation of the Dynamic Responses of Fibre-Reinforced Polymer Composite Bridge Beam Subjected to Moving Vehicle

Numerical Investigation of the Dynamic Responses of Fibre-Reinforced Polymer Composite Bridge Beam Subjected to Moving Vehicle

Mesoscale Process Modeling of a Thick Pultruded Composite with Variability in Fiber Volume Fraction

Stochastic lattice discrete particle modeling of fracture in pervious concrete

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