A review on stochastic multiscale analysis for FRP composite structures

Zhou, Xiaochao; Qian, Sheng-Yu; Wang, Neng-Wei; Xiong, Wen; Wu, Wenqing

doi:10.1016/j.compstruct.2021.115132

Cited by 47 publications

(22 citation statements)

References 150 publications

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“…Defects/damage have been demonstrated to occur at any time during the whole lifecycle of the FRPCs including materials processing, component manufacture, and in-service stages. According to the composition of FRPCs, some studies have systematically categorized defects as matrix, fiber, and interface/intraface defects (Irving and Soutis, 2019;Zhou et al, 2022). Matrix defects mainly include voids and porosities that arise from poor resin infusion; resin-rich regions due to uneven fiber distribution; matrix cracking caused by impact (Heslehurst, 2014).…”

Section: The Primary Types Of Defects and Damage In Compositesmentioning

confidence: 99%

“…As the market for composite materials continues to expand, the importance of non-destructive testing of FRPCs has increasingly been demonstrated. Indeed, the detection, characterization, and evaluation of defects/flaws in FRPCs using NDT&E are quite difficult and complex due to the anisotropy and structural uncertainty (Zhou et al, 2022) of FRPCs. Also, there is a wide variety of NDT techniques built upon different principles, and most of them are complicated (Wang et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Nondestructive testing and evaluation techniques of defects in fiber-reinforced polymer composites: A review

Chen

Jin²

2022

Front. Mater.

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Fiber-reinforced polymer composites have excellent mechanical properties and outstanding development potential and are cost-effective. They have increasingly been used in numerous advanced and engineering applications as materials for wind turbine blades, helicopter rotors, high-pressure pipelines, and medical equipment. Understanding and assessing structural failure promptly in the whole lifecycle of a composite is essential to mitigating safety concerns and reducing maintenance costs. Various nondestructive testing and evaluation (NDT&E) technologies based on different evaluation principles have been established to inspect defects under different conditions. This paper reviews the established types of NDT&E techniques: acoustic emission, ultrasonic testing, eddy current testing, infrared thermography, terahertz testing, digital image correlation, shearography, and X-ray computed tomography, which is divided into three categories based on the operation frequency and data processing means of the output signal that is directly under analysis. We listed four types of defects/damage that are currently of great interest, namely, voids and porosity, fiber waviness and wrinkling, delamination and debonding, as well as impact damage. To identify a suitable method for different defects/damage, we performed characterization and evaluation by using these NDT&E techniques for typical defects/damage. Then, the cost, inspection speed, benefits and limitations, etc. were compared and discussed. Finally, a brief overview of the development of the technologies and their applications in the field of composite fabrication was discussed.

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Section: The Primary Types Of Defects and Damage In Compositesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nondestructive testing and evaluation techniques of defects in fiber-reinforced polymer composites: A review

Chen

Jin²

2022

Front. Mater.

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“…Uncertainties of things are divided into three types: stochastic uncertainty, [4][5][6] fuzzy uncertainty 7,8 and interval uncertainty. [9][10][11][12] They belong to the research areas of probability theory and mathematical statistics, fuzzy mathematics and interval mathematics, respectively.…”

Section: Introductionmentioning

confidence: 99%

A novel univariate dimension‐reduction based interval finite element method for static response prediction of uncertain structures

Zhao

Feng

et al. 2023

Numerical Meth Engineering

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To eliminate the errors caused by the conventional interval perturbation finite element method due to classic interval arithmetic and neglect of higher-order terms, we propose a novel univariate dimension-reduction based interval finite element method to predict the static response bounds of structures with uncertain but bounded parameters. First, a univariate dimension-reduction algorithm is derived using the generalized Taylor expansion. The global stiffness matrix is expressed as the sum of the median and the univariate disturbance radius. Compared with Taylor expansion approximation, the univariate dimension-reduction approximation has higher accuracy and does not increase the amount of calculation. Then the inverse of the interval global stiffness matrix is approximated as an improved Neumann series. Higher-order terms are included by summing up the geometric terms in the Neumann series. Finally, the improved interval algorithm is used to solve the upper and lower bounds of the structural displacement response and the element stress response. The dependence between the interval parameters is accounted in comparison with the classic interval algorithm. The accuracy and effectiveness of the new method are validated by numerical cases on 2D truss, 3D frame and truck frame with multiple interval parameters.

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“…The fiber-reinforced polymer (FRP), a composite material made of a polymer matrix reinforced by fibers, has been widely applied in many fields, such as aerospace, marine, and construction engineering, due to light weight, durability, and ease of transport. 1,2 Extensive research has proved FRP effective in civil engineering to protect, repair, and reinforce structures. 3,4 In geotechnical engineering, especially in foundation engineering, FRP has recently been used to manufacture piles due to its excellent properties, such as FRP seawater sea-sand concrete (SSC) piles and concrete-filled FRP tube piles (CFFT).…”

Section: Introductionmentioning

confidence: 99%

FRP–soil interfacial mechanical properties with molecular dynamics simulations: Insights into friction and creep behavior

Yin

Yuan-Yuan

2023

Num Anal Meth Geomechanics

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The fiber‐reinforced polymer (FRP) has attracted much attention in civil engineering due to its durability and cost‐effectiveness. The soil–FRP structure interface plays an essential role when the FRP is adopted in geotechnical engineering, but its fundamental interfacial behavior remains unclear. In the present study, the atomistic models of silica representing sand, water film representing the lubricated condition, and cross‐linked epoxy representing FRP are constructed to investigate the FRP–sand interfacial properties at the nano‐scale through molecular dynamics (MD) simulations. The epoxy model geometry and forcefield are first validated by comparing the thermodynamic and mechanical parameters with experimental and simulation measurements. The silica–epoxy interfacial tribological and rheological behavior is then explored by conducting friction and creep simulations under dry and lubricated conditions. The friction force has been found linearly dependent on the normal load and increases with the sliding velocity while decreasing against water content. The modified Amontons law for the adhering surface could describe the silica–epoxy interfacial friction well. The shear stress level influences the creep characteristics with primary, secondary, and tertiary (or rupture) creep modes. The results of this study at the nano‐scale can be further developed to enhance the current contact laws of sand–FRP structure in micromechanics‐based modeling approaches.

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A review on stochastic multiscale analysis for FRP composite structures

Cited by 47 publications

References 150 publications

Nondestructive testing and evaluation techniques of defects in fiber-reinforced polymer composites: A review

Nondestructive testing and evaluation techniques of defects in fiber-reinforced polymer composites: A review

A novel univariate dimension‐reduction based interval finite element method for static response prediction of uncertain structures

FRP–soil interfacial mechanical properties with molecular dynamics simulations: Insights into friction and creep behavior

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