Experimental and numerical investigation on the dynamic characteristics of thick laminated plant fiber-reinforced polymer composite plates

Venkatachalam, G.; Suthenthiraveerappa, Vimalanand; Pragasam, Vignesh

doi:10.1007/s00419-018-1473-8

Cited by 6 publications

(3 citation statements)

References 29 publications

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“…Gopalan et al [ 19 ] studied the numerical and experimental investigations on the free vibration behaviours of plant fibre-fortified polymer laminated composite plates wherein the experimentally obtained composite lamina elastic constants were used for the numerical simulation based on hierarchical finite element method. Mahmoudi et al [ 20 ] performed the experimental and numerical investigations on the damping characteristics of flax fibre-reinforced epoxy laminated composites and found that the modal damping was higher when the flax fibre ply orientation was oriented at 90°.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

et al. 2021

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Due to the growing environmental awareness, the development of sustainable green composites is in high demand in composite industries, mainly in the automotive, aircraft, construction and marine applications. This work was an attempt to experimentally and numerically investigate the dynamic characteristics of Woven Flax/Bio epoxy laminated composite plates. In addition, the optimisation study on the dynamic behaviours of the Woven Flax/Bio epoxy composite plate is carried out using the response surface methodology (RSM) by consideration of the various parameters like ply orientation, boundary condition and aspect ratio. The elastic constants of the Woven Flax/Bio epoxy composite lamina needed for the numerical simulation are determined experimentally using two methods, i.e., the usual mechanical tests as well as through the impulse excitation of vibration-based approach and made a comparison between them. The numerical analysis on the free vibration characteristics of the composite was carried out using ANSYS, a finite element analysis (FEA) software. The confirmation of the FE model was accomplished by comparing the numerical results with its experimental counterpart. Finally, a comparison was made between the results obtained through the regression equation and finite element analysis.

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Section: Introductionmentioning

confidence: 99%

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

et al. 2021

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“…Rozylo et al [ 16 ] performed a numerical and experimental investigation on the buckling of thin-walled carbon/epoxy laminate composite profiles with top-hat sections under an axial compression and focused mainly on the critical and post critical states. Gopalan et al [ 17 ] carried out experimental and numerical investigations on the dynamic characteristics of uniform plant fiber reinforced polymer laminated composite plates wherein the experimentally determined elastic constants of the composite lamina were used for the numerical simulation based on the hierarchical finite element method. Suthenthiraveerappa et al [ 18 ] addressed the dynamic characteristics of thickness tapered plant fiber reinforced polymer laminated composite plates both numerically and experimentally.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Analyses on the Buckling Characteristics of Woven Flax/Epoxy Laminated Composite Plate under Axial Compression

et al. 2021

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The evolution of a sustainable green composite in various loadbearing structural applications tends to reduce pollution, which in turn enhances environmental sustainability. This work is an attempt to promote a sustainable green composite in buckling loadbearing structural applications. In order to use the green composite in various structural applications, the knowledge on its structural stability is a must. As the structural instability leads to the buckling of the composite structure when it is under an axial compressive load, the work on its buckling characteristics is important. In this work, the buckling characteristics of a woven flax/bio epoxy (WFBE) laminated composite plate are investigated experimentally and numerically when subjected to an axial compressive load. In order to accomplish the optimization study on the buckling characteristics of the composite plate among various structural criterions such as number of layers, the width of the plate and the ply orientation, the optimization tool “response surface methodology” (RSM) is used in this work. The validation of the developed finite element model in Analysis System (ANSYS) version 16 is carried out by comparing the critical buckling loads obtained from the experimental test and numerical simulation for three out of twenty samples. A comparison is then made between the numerical results obtained through ANSYS16 and the results generated using the regression equation. It is concluded that the buckling strength of the composite escalates with the number of layers, the change in width and the ply orientation. It is also noted that the weaving model of the fabric powers the buckling behavior of the composite. This work explores the feasibility of the use of the developed green composite in various buckling loadbearing structural applications. Due to the compromised buckling characteristics of the green composite with the synthetic composite, it has the capability of replacing many synthetic composites, which in turn enhances the sustainability of the environment.

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“…Many studies have been conducted in thermosetting laminate composites and the induced mechanical property deteriorations, and some valuable swelling models are obtained. [21][22][23][24][25] Although the "random" fiber orientation and distribution of shortcut fiber composites bring a great challenge to construct a microstructure model and predict the composite water swelling behavior.…”

Section: Introductionmentioning

confidence: 99%

A study of water‐induced elementary hemp fiber swelling and the reinforced polypropylene composite expansion

Han

Gong

et al. 2021

Polymer Composites

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To deeply understand the swelling mechanism, the water swelling ratio and direction of elementary hemp fiber and the reinforced polypropylene (PP) composites were analyzed by both experimental methods and numerical simulation. The fiber swelling force was also calculated based on Flory-Rehner theory. The results showed that the simulated fiber radial swelling ratio of 6.5% is slightly higher than the measured one of 5.6%. For the reinforced composites, the simulated cross-sectional expansion of 3.7% is very close to the measured one of 3.5%. This indicates that fiber mainly swells along its radial direction and the composite expansion is affected by not only fiber swelling ratio and direction but also fiber volume fraction and orientation. The proposed simulation model could easily estimate the swelling ratio and rate of plant fiber and the reinforced composites from their weight gain data. The generated swelling force of fiber is almost 850 MPa at the beginning and decreases to zero until achieving saturation state, which is much higher than the constraint stress of PP matrix and drives composite water expansion behavior. It is concluded that reducing the mixing entropy of plant fiber with water should be an effective approach to inhibit composite water expansion and improve its dimensional stability. The obtained results are beneficial for constructing a water absorption and service life prediction model of shortcut hemp fiber composites.

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Experimental and numerical investigation on the dynamic characteristics of thick laminated plant fiber-reinforced polymer composite plates

Cited by 6 publications

References 29 publications

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

Dynamic Characteristics of Woven Flax/Epoxy Laminated Composite Plate

Experimental and Numerical Analyses on the Buckling Characteristics of Woven Flax/Epoxy Laminated Composite Plate under Axial Compression

A study of water‐induced elementary hemp fiber swelling and the reinforced polypropylene composite expansion

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