An experimental and finite element analysis of the static deformation of natural fiber-reinforced composite beam

Lim, Jiunn Hsuh; Ratnam, Mani Maran; Khalil, H. P. S. Abdul

doi:10.1016/s0142-9418(02)00066-1

Cited by 17 publications

(5 citation statements)

References 14 publications

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“…The mechanical behaviors of NFRC beams, plates, and shells have also been investigated. Lim et al [ 18 ] performed the direct measurement of the whole-field deformation of an NFRC cantilever beam by the shadow moiré method and the comparison of the experimental results with the finite element results. Saravana Bavan and Mohan Kumar [ 19 ] analyzed the deflection and stress properties of an NFRC beam by the finite element method (FEM).…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Stability of Natural-Fiber-Reinforced Composite Cylindrical Shells with Initial Geometric Imperfection Considering Moisture Absorption and Hygrothermal Aging

2022

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In this paper, the nonlinear stability of a natural-fiber-reinforced composite cylindrical shell with initial geometric imperfection is investigated. The nonlinear governing equations are established by high-order shear deformation theory. The load-edge shortening curves for different imperfection amplitudes are obtained by the Galerkin method. Several numerical examples are presented to verify the accuracy of the proposed method and to investigate the influence of initial geometric imperfection, moisture absorption, and hygrothermal aging on the post-buckling behavior of natural-fiber-reinforced composite cylindrical shells.

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Section: Introductionmentioning

confidence: 99%

Nonlinear Stability of Natural-Fiber-Reinforced Composite Cylindrical Shells with Initial Geometric Imperfection Considering Moisture Absorption and Hygrothermal Aging

2022

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“…The use of a normal white light source for shadow moiré in micro-deflection measurement is relatively difficult because normal light sources produce low visibility fringes. Although the measurement resolution can be enhanced by integrating the phase-shifting technique in fringe pattern analysis [13,14], phase-shifting will produce errors if the fringe contrast is low.…”

Section: Introductionmentioning

confidence: 99%

Deflection Measurement and Determination of Young’s Modulus of Micro-cantilever Using Phase-shift Shadow Moiré Method

et al. 2009

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The deflection of micro-structures have been previously measured using optical interferometry methods. In this study, the classical phase-shift shadow moiré method (PSSM) was applied to measure the deflection of a silicon micro-cantilever and to determine the Young's modulus of the cantilever material. The modulus value was determined from the profile based on deflection equation. A normal white light source and a grating of 40 line pairs per mm were used to generate the moiré fringes. Since the use of white light and high-resolution grating produces low contrast moiré fringes, the fringe visibility was enhanced by applying contrast enhancement and filtering techniques. The Young's modulus of the silicon cantilever material was estimated to be 165.9 GPa with an uncertainty of ±11.3 GPa (6.8%). The experimental results show that the PSSM method can be successfully applied for characterizing micro-cantilevers. Comparison of the deflection profile from the proposed method and a commercial 3-D optical profiler showed that the measurement range and sensitivity of PSSM are not affected by the poor contrast images.

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“…These fibers are used mostly for cordage, sacks, fishnets, mats, ropes, wall coverings, and as a filler for mattresses and cushions [31]. Also, it is reported that use of plant fiber reinforced composites as reinforcement in polymer matrix with a view to replace more expensive and non-renewable synthetic fibers, such as glass, can reduce the material cost [32][33][34][35]. The scope for substituting jute and sisal fibers in place of glass fibers as reinforcement in composites lies in their higher specific modulus and lower specific gravity [36].…”

Section: Introductionmentioning

confidence: 99%

Plant Fiber — Industrial Waste Reinforced Polymer Composites as a Potential Wood Substitute Material

Saxena

Morchhale

Pappu

et al. 2008

Journal of Composite Materials

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This investigation deals with the property characterization and utilization of abundantly available and renewable resources of plant fibers such as jute and sisal. These plant fibers along with industrial wastes (fly ash and red mud) have been used for synthesizing value added composite materials. Relevant engineering properties such as physical and mechanical, resistance to abrasive wear, weathering and fire, etc., of the plant fiber reinforced polymer matrix composites so synthesized were characterized. The characteristics of conventional wood and other commercially available potential candidate building materials were also compared to assess the application potential of the newly developed materials vis-a-vis their conventional counterparts. The study reveals that the developed polymer—natural fiber—industrial (inorganic) waste composites attain far superior mechanical properties and resistance to abrasive wear, fire, water absorption, weathering, and chemical attack, as compared to their conventional counterparts such as wood, medium density fibre (MDF) boards, particle board, etc. The versatile material system so developed has potential for wood substitute applications like door shutters, flooring tiles, roofing sheets, partitions, etc., and is envisaged to significantly contribute towards forest conservation and environmental protection. The study strongly suggests that the newly developed plant fiber and/or industrial waste reinforced polymer composite materials are quite capable to serve as a potential cost and energy effective, technologically viable, and attractive substitute to the conventionally used wood and other identical materials. The study gains significance from the fact that earlier investigators have focussed their attention mainly towards exploring the use of chopped (sisal), and textile (jute) composites for different engineering applications including building while the present study examines the suitability of abundantly available natural fibers such as sisal and jute in the presence of otherwise harmful industrial wastes like red mud and fly ash for synthesizing polymer-based composites. This is followed by assessing the potential of the developed composite materials as a cost and energy effective wood substitute for building applications.

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An experimental and finite element analysis of the static deformation of natural fiber-reinforced composite beam

Cited by 17 publications

References 14 publications

Nonlinear Stability of Natural-Fiber-Reinforced Composite Cylindrical Shells with Initial Geometric Imperfection Considering Moisture Absorption and Hygrothermal Aging

Nonlinear Stability of Natural-Fiber-Reinforced Composite Cylindrical Shells with Initial Geometric Imperfection Considering Moisture Absorption and Hygrothermal Aging

Deflection Measurement and Determination of Young’s Modulus of Micro-cantilever Using Phase-shift Shadow Moiré Method

Plant Fiber — Industrial Waste Reinforced Polymer Composites as a Potential Wood Substitute Material

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