Experimental study for the effect of hole notched in fracture mechanics of GLARE and GFRP composites subjected to quasi-static loading

Chu, Changyong; Shan, L.; Al-Furjan, M.S.H.; Zarei, M.S.; Hajmohammad, M.H.; Kolahchi, R.

doi:10.1016/j.tafmec.2022.103624

Cited by 20 publications

(4 citation statements)

References 49 publications

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“…The damage degree D calculated in Section 3 for single sulfate attack, single freeze-thaw cycle, and salt-freeze coupled environment are substituted into Equations ( 16) and (17). Finally, it is possible to calculate the stress-strain relationships of concrete under uniaxial tension and compression in three erosive environments.…”

Section: Acknowledgmentsmentioning

confidence: 99%

“…Numerical analysis, as a branch of mathematics, is the discipline that studies the numerical computation methods and their theories for solving mathematical problems using computers. [16][17][18] Scholars establish theoretical models by controlling equations and then employ methods such as differential correction method (DCM) and differential quadrature method (DQM) to solve these equations. 19,20 The theoretical models encompass various factors or dimensions that affect the target.…”

Section: Introductionmentioning

confidence: 99%

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Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Zou,

2023

Polymer Composites

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In cold regions, the coupling of freeze–thaw cycles and sulfate frequently impairs the performance of FRP‐bonded concrete, resulting in a shortened service life. Carbon fiber polymer (CFRP) and glass fiber polymer (GFRP) are used to paste pre‐cracked concrete beams in the experiment, and three unfavorable environments are created: freeze–thaw cycle, 10% sulfate solution erosion, and coupling erosion. This paper investigates the durability performance of FRP bonded beams using microscopic, mechanical and dynamic modulus of elasticity tests, as well as post‐erosion damage values and finite element modeling. After 400 h of coupled erosion, sulphate erosion and freeze–thaw cyclic erosion environments, the strength of the CFRP bonded beams was reduced by 66.3%, 14.6% and 42.0% and the GFRP bonded beams by 67%, 21.9% and 52.3% respectively. The results show that single sulphate attack does not cause significant damage to the beams, but it can exacerbate the damage caused by freeze–thaw cycles. A coupled damage model based on the Lemaitre strain equivalence assumption predicted the actual coupled damage of the specimens. The finite element model can accurately predict the damage and strength of the bond surface under loading.Highlights The durability performance of CFRP and GFRP adhered pre‐cracked concrete beams Microscopic, mechanical, and dynamic elastic modulus tests are used Freeze–thaw erosion environment in 10% mass fraction sulphate solution Coupled damage models for coupled salt and freeze–thaw cycles are developed FRP‐reinforced pre‐cracked beams subjected to erosion are simulated with ABAQUS

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Section: Acknowledgmentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Zou,

2023

Polymer Composites

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“…In the 1980s, aramid-fiberreinforced aluminum alloy laminates (ARALLs) [9,10] were implemented in the aerospace industries due to their impact strength, fatigue resistance and anti-corrosive nature that remained stable. In the late 1990s, glass-reinforced aluminum laminates (GLAREs) [11][12][13] were used in the aerospace industry due to their excellent properties. According to the cited literature study, glass fiber produces good results in mechanical properties [14,15].…”

Section: Introductionmentioning

confidence: 99%

Development of New Hybrid Composites for High-Temperature Applications

Seoane-Rivero,

Germán,

Santos

et al. 2023

Polymers

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Nowadays, in the automation and aircraft industries, there is a challenge in minimizing the weight of components of vehicles without losing the original properties. In this study, we fabricate hybrid composites based on fiber metal laminates; these materials could be promising composites for high-performance applications. This work is focused on analyzing the effect of high temperature (175 °C) on the mechanical properties of these kind of materials, by introducing NaOH and silane adhesion treatments between metal and prepreg layers and by using vacuum molding processes. Fabricated FML (NaOH treatment) shows a significant improvement in tensile strength in comparison with the ARALL and GLARE reported by ESA. Moreover, developed FMLs at 175 °C kept more than 70% of their tensile strength and modulus and kept 4% of tensile strain at room temperature. The prominent conclusion achieved in this work has been that excellent candidates have been obtained for a wide range of applications, including but not limited to space and aerospace applications.

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“…The addition of nanofillers to GLARE laminate can significantly improve its mechanical properties. Nanofillers can increase the strength, stiffness, and elastic modulus of GLARE laminate by reinforcing the matrix material which result in a material that is more resistant to deformation (16) and fracture (17) under bending load. Nanofillers can improve the toughness (18) of GLARE laminate by increasing the energy required to initiate and propagate cracks in the material under impact and fatigue loading conditions (19) (20).…”

Section: Introductionmentioning

confidence: 99%

Optimizing the process parameter of Abrasive Water Jet Machining against sub-surface delamination and cutting time of nanoclay modified GLARE laminates.

et al. 2023

Preprint

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GLARE is a type of laminate material made up of layers of aluminum and fiberglass used in automotive, and aircraft structures like fuselage panels, control surfaces and wing skins due to their superior specific strength, fatigue, and damage tolerance. The inclusion of nanoclay filler reported to improve the mechanical properties of the GLARE laminates. However, it is important to investigate the machinability of such laminates to extend its applicability in the industry. The current work optimizes the process parameters of Abrasive Water Jet Machining (AWJM) process to cut the nanoclay modified fiber metal laminates. The experiments were designed by following Taguchi’s L9 orthogonal array. The influence of factors like velocity of waterjet, mass flow rate, standoff distance of nozzle studied against the response such as cutting time and sub-surface delamination of layers were studied. The delamination was measured using the variation in thickness before and after the cutting process. The changes in the cutting surface were analysed using macroscopic analysis. The study also developed the regression model and conducted ANOVA on generated data. Grey Relational Analysis (GRA) was used to identify the optimum values of input process parameters against the multiple response such as cutting time and delamination. The results revealed that the jet velocity significantly affected the cutting time, whereas the stand-off distance and mass flow rate affected the delamination thickness of the laminates. A slight plastic deformation was noted on the metal surfaces along with irregularities and fiber exposure was observed in the GFRP layers of laminates exhibited low cutting performance.

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Experimental study for the effect of hole notched in fracture mechanics of GLARE and GFRP composites subjected to quasi-static loading

Cited by 20 publications

References 49 publications

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Development of New Hybrid Composites for High-Temperature Applications

Optimizing the process parameter of Abrasive Water Jet Machining against sub-surface delamination and cutting time of nanoclay modified GLARE laminates.

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