Experimental and micromechanical investigation of T300/7901 unidirectional composite strength

Zhao, YQ; Zhou, Yingqi; Huang, Zheng‐Ming; Batra, R.C.

doi:10.1002/pc.25059

Cited by 38 publications

(23 citation statements)

References 47 publications

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“…It also revealed a noticeable drop in the ultimate strength with the increase in fiber angle from 0° to 15°. Stress concentration factor (SCF) plays an important role while considering the failure prediction, without consideration of SCFs transverse strength will be overestimated [124]. Thermal buckling load for curvilinear fiber-reinforced composite laminates is more for antisymmetric laminates, while laminates with nonuniform temperature distribution exhibit high critical load carrying capacity [110].…”

Section: Classificationmentioning

confidence: 99%

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Pagar²,

et al. 2019

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Composites have been found to be the most promising and discerning material available in this century. Presently, composites reinforced with fibers of synthetic or natural materials are gaining more importance as demands for lightweight materials with high strength for specific applications are growing in the market. Fiber-reinforced polymer composite offers not only high strength to weight ratio, but also reveals exceptional properties such as high durability; stiffness; damping property; flexural strength; and resistance to corrosion, wear, impact, and fire. These wide ranges of diverse features have led composite materials to find applications in mechanical, construction, aerospace, automobile, biomedical, marine, and many other manufacturing industries. Performance of composite materials predominantly depends on their constituent elements and manufacturing techniques, therefore, functional properties of various fibers available worldwide, their classifications, and the manufacturing techniques used to fabricate the composite materials need to be studied in order to figure out the optimized characteristic of the material for the desired application. An overview of a diverse range of fibers, their properties, functionality, classification, and various fiber composite manufacturing techniques is presented to discover the optimized fiber-reinforced composite material for significant applications. Their exceptional performance in the numerous fields of applications have made fiber-reinforced composite materials a promising alternative over solitary metals or alloys.

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Section: Classificationmentioning

confidence: 99%

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Pagar²,

et al. 2019

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“…Uniaxial compressive and tensile tests on the 7901 epoxy gave different yield stresses. 68 We postulate that the pressure-dependent Drucker-Prager yield surface provides a reasonable representation of its response. Defining the effective stress as 49 ¼ ffiffiffiffiffiffiffiffiffiffiffiffiffi ffi…”

Section: Drucker-prager Yield Criterionmentioning

confidence: 98%

“…Uniaxial compressive and tensile tests on the 7901 epoxy gave different yield stresses. 68 We postulate that the pressure-dependent Drucker–Prager yield surface provides a reasonable representation of its response. Defining the effective stress as 49 where α m accounts for the hydrostatic pressure effect; a repeated index implies summation over its range, 1, 2, 3, and the yield surface is described by …”

Section: Theoretical Backgroundmentioning

confidence: 99%

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Micromechanical progressive damage analysis of inter- and intra-layer failures in fiber-reinforced composite laminates

Zhao

Jiang

Huang

et al. 2020

Journal of Composite Materials

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We analyze progressive damage and failure of composite laminates by using a micromechanical bridging model and compare numerical and experimental results for three fracture problems, namely, the four-point bending, the simple tension, and the simple tension of a laminate with an open hole at its centroid. These problems involve fiber–matrix interface debonding, constituents’ damage, interlayer delamination, and localized damage due to stress concentration. Macroscopic constitutive equations of unidirectional lamina, derived from those of the fiber and the matrix by using the bridging model with the fiber material assumed to be linearly elastic and the matrix to be elasto-plastic obeying the Drucker–Prager yield criterion, are employed. Strains in each constituent of the composite are assumed to be infinitesimal for the additive decomposition of strains into elastic and plastic parts to be valid, and the incremental plasticity theory is used. Stresses in the two constituents are found from their values in the homogenized material by using a dehomogenization technique. The intra-layer damage is assumed to initiate at a material point when the failure criterion for either the fiber or the matrix is satisfied. Young’s modulus of a constituent is degraded by following a Weibull distribution. A finite element is deleted when an energy-based failure criterion is satisfied in it, and the analysis is continued till the structure fails. The delamination between adjacent plies is simulated by including a thin resin layer at the interface and studying failure initiation and propagation in it. The computed reaction force versus the displacement curves and the failure patterns in the three problems are found to agree with the corresponding experimental data.

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“…Many factors, such as type of polymer matrix and the types associated fibres; the fibre's origin, processing and forms; the fibre dispersion; the distribution in the matrix; the orientation; the fibrematrix interfacial interaction; and the techniques used in the composite's fabrication, directly affect the mechanical properties of the biocomposites [169][170][171][172][173][174]. Besides, as the strength of reinforcement fibre is higher than that of the matrix material, the strength of a biocomposite is more dependent on the fibre rather than the matrix [175][176][177][178].…”

Section: Factors Affecting the Mechanical Properties Of Biocompositesmentioning

confidence: 99%

Plant-Based Natural Fibre Reinforced Composites: A Review on Fabrication, Properties and Applications

et al. 2020

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The increasing global environmental concerns and awareness of renewable green resources is continuously expanding the demand for eco-friendly, sustainable and biodegradable natural fibre reinforced composites (NFRCs). Natural fibres already occupy an important place in the composite industry due to their excellent physicochemical and mechanical properties. Natural fibres are biodegradable, biocompatible, eco-friendly and created from renewable resources. Therefore, they are extensively used in place of expensive and non-renewable synthetic fibres, such as glass fibre, carbon fibre and aramid fibre, in many applications. Additionally, the NFRCs are used in automobile, aerospace, personal protective clothing, sports and medical industries as alternatives to the petroleum-based materials. To that end, in the last few decades numerous studies have been carried out on the natural fibre reinforced composites to address the problems associated with the reinforcement fibres, polymer matrix materials and composite fabrication techniques in particular. There are still some drawbacks to the natural fibre reinforced composites (NFRCs)—for example, poor interfacial adhesion between the fibre and the polymer matrix, and poor mechanical properties of the NFRCs due to the hydrophilic nature of the natural fibres. An up-to-date holistic review facilitates a clear understanding of the behaviour of the composites along with the constituent materials. This article intends to review the research carried out on the natural fibre reinforced composites over the last few decades. Furthermore, up-to-date encyclopaedic information about the properties of the NFRCs, major challenges and potential measures to overcome those challenges along with their prospective applications have been exclusively illustrated in this review work. Natural fibres are created from plant, animal and mineral-based sources. The plant-based cellulosic natural fibres are more economical than those of the animal-based fibres. Besides, these pose no health issues, unlike mineral-based fibres. Hence, in this review, the NFRCs fabricated with the plant-based cellulosic fibres are the main focus.

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Experimental and micromechanical investigation of T300/7901 unidirectional composite strength

Cited by 38 publications

References 47 publications

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Fiber-Reinforced Polymer Composites: Manufacturing, Properties, and Applications

Micromechanical progressive damage analysis of inter- and intra-layer failures in fiber-reinforced composite laminates

Plant-Based Natural Fibre Reinforced Composites: A Review on Fabrication, Properties and Applications

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