Composite forming simulation of a three-dimensional representative model with random fiber distribution

Wu, Qi; Yoshikawa, Nobuhiro; Zhai, Hongzhou

doi:10.1016/j.commatsci.2020.109780

Cited by 9 publications

(3 citation statements)

References 35 publications

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“…BF can enhance the strength of the matrix depending on its superior mechanical properties such as a high elastic modulus and tensile strength, coupled with well-bonding performance with concrete. On the other hand, BF has a three-dimensional random distribution system in concrete [ 46 ], which improves the crack resistance, and effectively delays the generation and expansion of internal cracks.…”

Section: Resultsmentioning

confidence: 99%

Durability Performance of Basalt Fiber-Reinforced Concrete Subjected to Sulfate–Magnesium Combined Attack

Fan,

Wang,

et al. 2024

Materials

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In salt lake areas, cast-in situ concrete structures are subjected to long-term corrosion by sulfate and magnesium ions. The properties of concrete can be improved by adding materials like basalt fiber (BF). To investigate the degradation process and mechanism of cast-in situ concrete with premixed BF under the dual corrosion of sulfate and magnesium salts, concrete with a content of BF ranging from 0 to 0.5% was prepared. Specimens were subjected to different internal and external corrosion conditions and immersed for 180 days. Dimension, mass, and appearance changes at different immersion times were recorded. The compressive and flexural strength of the specimens were tested and continually observed throughout the immersion time. Mineral and microstructural changes at different immersion times were determined by the XRD, TG, and SEM analysis methods. Results indicated that external sulfate–internal magnesium combined attack had a significant negative effect on the early strength. The compressive and flexural strength of the corroded specimens decreased by 17.2% and 14.1%, respectively, compared to the control group at 28 days. The premixed magnesium ions caused the decomposition of the C-S-H gel, resulting in severe spalling and lower mechanical properties after immersing for a long time. As the BF can inhibit crack development, the properties of the concrete premixed with BF were improved. Specimens exhibited superior performance at a BF content of 0.5%, resulting in a 16.2% increase in flexural strength. This paper serves as a valuable reference for the application of basalt fiber-reinforced concrete under the challenging conditions of sulfate–magnesium combined attack.

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Section: Resultsmentioning

confidence: 99%

Durability Performance of Basalt Fiber-Reinforced Concrete Subjected to Sulfate–Magnesium Combined Attack

Fan,

Wang,

et al. 2024

Materials

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“…The first step involves homogenizing a unidirectional representative volume element (UD-RVE) to represent the fiber bundle at the mesoscale, and the second step involves homogenizing the woven fabric representative volume element (WF-RVE) to represent the composite at the macroscale. When conducting homogenization of thermal and mechanical properties, [14][15][16][17] the temperature dependency of the polymer matrix should be considered because the thermoforming procedure covers a wide temperature range. 6,10,[18][19][20] Moreover, homogenization of the thermo-viscoelasticity is more complex as the polymer matrix itself shows relaxation and creep behavior by the time.…”

Section: Introductionmentioning

confidence: 99%

Multi-scale finite element simulation of the thermoforming of a woven fabric glass fiber/polyetherimide thermoplastic composite

Zhai

Bai

et al. 2023

Journal of Composite Materials

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Understanding the thermoforming process for thermoplastic composites is of great importance to ensure the quality of the composite product but is difficult because of the complex material constitutive models and thermo-mechanical coupling in the thermoforming process. In this study, a woven fabric thermoplastic composite consisting of glass fiber and polyetherimide resin was thermoformed under one-sided cooling conditions. After the effective material properties are homogenized with newly developed, two-step asymptotic homogenization methods, and the temperature and pressure boundary conditions are measured experimentally, a 3D composite laminate sandwiched by interfacial layers and metal molds was finite element simulated in the macroscale. The simulated warpage, which was caused by the in-plane residual stresses, was consistent with the experimental results when reasonable tool–part interactions were considered. Subsequently, the temperature, displacement, strain, and stress were comprehensively discussed in terms of their spatial distribution, temporal evolution, and correlations with the others.

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“…It has been widely studied for metallic materials machining, forming or laminating processes and fatigue characterization [1,2]. Heat sources appearance occurs as well in composite materials [3,4] under mechanical loading [5], for instance in forming process [6] or in fatigue tests [7,8]. The interest for heat sources lies in their relationship to the thermomechanical properties of the material, to the fatigue life prediction, and to the damage assessment.…”

Section: Introductionmentioning

confidence: 99%

Multi-resolution approach based on a variables separation method in unsteady thermal problem for composites

Vidal

Ibouroi

Gallimard

et al. 2021

Composite Structures

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Composite forming simulation of a three-dimensional representative model with random fiber distribution

Cited by 9 publications

References 35 publications

Durability Performance of Basalt Fiber-Reinforced Concrete Subjected to Sulfate–Magnesium Combined Attack

Durability Performance of Basalt Fiber-Reinforced Concrete Subjected to Sulfate–Magnesium Combined Attack

Multi-scale finite element simulation of the thermoforming of a woven fabric glass fiber/polyetherimide thermoplastic composite

Multi-resolution approach based on a variables separation method in unsteady thermal problem for composites

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