Technical agave fiber tensile performance: The effects of fiber heat-treatment

Langhorst, Amy; Ravandi, Mohammad Reza Ghotbi; Mielewski, Deborah F.; Banu, Mihaela

doi:10.1016/j.indcrop.2021.113832

Cited by 21 publications

(3 citation statements)

References 42 publications

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“…The mounting tab is loaded to the testing machine and the sides of the mounting tab are cut to release the support of the mounting tab without damaging the fiber. The testing is conducted at a constant cross-head speed of 0.2 mm/min till the fiber breaks [ 82 , 83 ].…”

Section: Mechanical Propertiesmentioning

confidence: 99%

Processing, Characterization of Furcraea foetida (FF) Fiber and Investigation of Physical/Mechanical Properties of FF/Epoxy Composite

et al. 2022

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In recent days the rising concern over environmental pollution with excessive use of synthetic materials has led to various eco-friendly innovations. Due to the organic nature, abundance and higher strength, natural fibers are gaining a lot of interest among researchers and are also extensively used by various industries to produce ecological products. Natural fibers are widely used in the composite industry as an alternative to synthetic fibers for numerous applications and new sources of fiber are continuously being explored. In this study, a fiber extracted from the Furcraea foetida (FF) plant is characterized for its feasibility as a reinforcement to fabricate polymer composite. The results show that the fiber has a density of 0.903 ± 0.07 g/cm3, tensile strength (σt) of 170.47 ± 24.71 MPa and the fiber is thermally stable up to 250 °C. The chemical functional groups and elements present in the FF fiber are evaluated by conducting Fourier transform infrared spectroscopy (FT-IR) and energy dispersive spectroscopy (EDS). The addition of FF fibers in epoxy reduced the density (13.44%) and hardness (10.9%) of the FF/Epoxy (FF/E) composite. However, the void content (Vc < 8%) and water absorption (WA: < 6%) rate increased in the composite. The FF/E composite with 30% volume of FF fibers showed maximum σt (32.14 ± 5.54 MPa) and flexural strength (σf: 80.23 ± 11.3 MPa).

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Section: Mechanical Propertiesmentioning

confidence: 99%

Processing, Characterization of Furcraea foetida (FF) Fiber and Investigation of Physical/Mechanical Properties of FF/Epoxy Composite

et al. 2022

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“…To deeply analyze damage mechanisms, different techniques are used in this work: scanning electron microscopy (SEM), acoustic emission (AE) and micro computed tomography (micro-CT). In literature, SEM is frequently used for fracture surface analysis (Huang et al 2022;Langhorst et al 2021) and AE has already been successfully applied in order to record damage evolution in a variety of biocomposite materials (Jani et al 2021;Bartos et al 2020;El Mahi et al 2019). X-ray micro-CT with high resolution allows specimen observation in three dimensions.…”

Section: Introductionmentioning

confidence: 99%

Influence of Hygrothermal Aging on Mechanical Properties and Damage Mechanisms of Hemp-Reinforced Biocomposites

Drouhet

Touchard

Chocinski–Arnault

2022

Journal of Natural Fibers

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Biocomposites are being developed for structural applications, particularly in the automotive industry. The use of plant fibers as reinforcement is a first step towards the development of ecomaterials but it is necessary to use also a more eco-friendly matrix. In this paper, woven hemp composites impregnated with two different eco-polymers are compared: hemp/Greenpoxy and hemp/Elium. Greenpoxy is a partially bio-based thermoset resin and Elium is a recyclable thermoplastic polymer. The influence of various hygrothermal aging conditions on the mechanical properties of these composites is studied and results are compared with the behavior of samples stored at ambient temperature and humidity. Water immersion was carried out at three different temperatures: 21°C, 60°C and 70°C. A Fick's law was used to model the water uptake. Modulated DSC was performed to measure the evolution of the glass transition temperatures. Repeated progressive tensile loading tests were carried out and instrumented with acoustic emission monitoring. The evolution of the damage factor, the residual strains and the acoustic events was analyzed. Fracture surface analysis and microtomography observations were also performed. Damage mechanisms are discussed. Results show that mechanical properties are highly affected by the hygrothermal aging whatever the matrix, but the increase in temperature affects the two composites differently.

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“…However, there are still important issues that limit natural fibers' future use in engineering designs, mostly related to predicting structural performance as a result of the natural variability in fiber characteristics. 7,8 The variations in plant origin, quality of the crop, planting condition, harvesting, extraction and refinement method, and fiber characterization are considered primary aleatoric uncertainty sources in the fiber properties, which lead to the variation of their mechanical properties. The uncertainties in fiber physical and mechanical properties generally lead to significant anisotropy in the mechanical and structural performance of the natural fiber-reinforced composites, which are currently not controlled or assessed.…”

Section: Introductionmentioning

confidence: 99%

Uncertainty analysis of mechanical behavior of natural fiber composites

Ravandi

Noorian

Banu

2022

Proceedings of the Institution of Mechanical Engineers, Part L:

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The natural origin of the fibers combined with random production flaws results in significant uncertainties in the properties of natural fiber-reinforced composites. A probabilistic assessment can help to characterize the uncertainties and evaluate the reliability of natural fiber composites, enabling their use in engineering designs. To this end, this study aims to analyze the uncertainties in the tensile strength and frequency response of a unidirectional flax/epoxy composite due to the actual variability of various input parameters, including the fiber material properties and manufacturing flaws. Based on the available data in the literature, the non-deterministic input variables were divided into normal and uniform variables using a statistical test. A computationally efficient response surface approach based on the polynomial chaos expansion was proposed to conduct the uncertainty analysis with multi-type uncertain variables. Moreover, the results were validated by experimental measurements and compared with the direct Monte Carlo simulation to demonstrate the accuracy and efficiency of the surrogate model.

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Technical agave fiber tensile performance: The effects of fiber heat-treatment

Cited by 21 publications

References 42 publications

Processing, Characterization of Furcraea foetida (FF) Fiber and Investigation of Physical/Mechanical Properties of FF/Epoxy Composite

Processing, Characterization of Furcraea foetida (FF) Fiber and Investigation of Physical/Mechanical Properties of FF/Epoxy Composite

Influence of Hygrothermal Aging on Mechanical Properties and Damage Mechanisms of Hemp-Reinforced Biocomposites

Uncertainty analysis of mechanical behavior of natural fiber composites

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