Measurement of the Shear Properties of Extruded Polystyrene Foam by In-Plane Shear and Asymmetric Four-Point Bending Tests

Yoshihara, Hiroshi; Maruta, Makoto

doi:10.3390/polym12010047

Cited by 14 publications

(5 citation statements)

References 23 publications

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“…[22]. Hence, they are often used as foam materials for insulation, protection, and packaging in many industrial and personal applications [23,24]. A large amount of expanded plastics has been discarded as waste after end-used or landfilled [25].…”

Section: Introductionmentioning

confidence: 99%

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

Kim

Cho

2020

Polymers

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Waste Expanded polypropylene (EPP) was utilized as recycled matrix for kenaf fiber-reinforced polypropylene (PP) composites produced using chopped kenaf fibers and crushed EPP waste. The flexural properties, impact strength, and heat deflection temperature (HDT) of kenaf fiber/PP composites were highly enhanced by using waste EPP, compared to those by using virgin PP. The flexural modulus and strength of the composites with waste EPP were 98% and 55% higher than those with virgin PP at the same kenaf contents, respectively. The Izod impact strength and HDT were 31% and 12% higher with waste EPP than with virgin PP, respectively. The present study indicates that waste EPP would be feasible as recycled matrix for replacing conventional PP matrix in natural fiber composites.

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Section: Introductionmentioning

confidence: 99%

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

Kim

Cho

2020

Polymers

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“…A number of mechanical tests have been utilized to characterize the mechanical properties of foam materials, including XPS, such as static compression [4,[13][14][15][16], static tension [15], flexural vibration [16,17], static shear [13,17,18], torsional vibration [18], asymmetric four-point bending [18], and static bending tests [4,[14][15][16]. Among these tests, the static bending test is simple and easy to perform; therefore, to characterize the mechanical properties of XPS, this particular test should be used more frequently.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Sample Configuration on the Measurement of the Bending Properties of Extruded Polystyrene Using Three-Point, Four-Point, and Compression Bending Tests

Yoshihara,

Yoshinobu,

Maruta

2024

Preprint

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Extruded polystyrene (XPS) is frequently used in the construction of many different structures. It is therefore necessary to appropriately characterize its mechanical properties to ensure the safety of said structures. Among the available characterization tests, static bending tests are simple and easy to perform; owing to these characteristics, they should be performed more frequently than other tests. However, in static bending tests on XPS, there are several challenges owing to the high flexibility of XPS, and the chosen testing method and sample configuration affect the accuracy of characterization. In this study, three bending properties (Young’s modulus, proportional limit stress, and bending strength) of samples cut from an XPS panel were determined using three-point bending (TPB), four-point bending (FPB), and compression bending (CB) tests with varying sample span/depth ratios, and statistical analyses were performed to determine the relevance of the tests. The experimental results suggest that the TPB and CB tests were more feasible than the FPB test when the span/depth ratio was appropriately determined. However, clear differences were observed in the sample bending properties determined in these tests. In light of these findings, further studies should be conducted to elucidate these differences.

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“…13 The shear moduli and shear strength of extruded polystyrene foam were obtained by asymmetric four-point bending tests by Yoshihara and Maruta. 14…”

Section: Introductionmentioning

confidence: 99%

“…13 The shear moduli and shear strength of extruded polystyrene foam were obtained by asymmetric four-point bending tests by Yoshihara and Maruta. 14 The novelty of this paper is the following. The experimental approach for determination of the honeycombs shear characteristics is suggested.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of mechanical characteristics of fused deposition processed honeycomb fabricated from PLA or ULTEM 9085

Derevyanko

Uspensky

Аврамов

et al. 2022

Jnl of Sandwich Structures & Materials

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Approach for mechanical characteristic experimental analysis of honeycomb core manufactured by fused deposition modelling is suggested. Experimental analyses of shear and tension of the honeycombs specimens fabricated from PLA and ULTEM 9085 materials are performed. The experimental studies are accompanied by the finite element simulations of the shear and the tension experiments of honeycomb core. As follows from experimental and numerical studies, both the geometrical nonlinearity and plasticity behavior of the material must be accounted for the honeycomb tension analysis. The force-displacement response of honeycomb tension has nonlinear behavior.

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Measurement of the Shear Properties of Extruded Polystyrene Foam by In-Plane Shear and Asymmetric Four-Point Bending Tests

Cited by 14 publications

References 23 publications

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

Effects of Waste Expanded Polypropylene as Recycled Matrix on the Flexural, Impact, and Heat Deflection Temperature Properties of Kenaf Fiber/Polypropylene Composites

The Effect of Sample Configuration on the Measurement of the Bending Properties of Extruded Polystyrene Using Three-Point, Four-Point, and Compression Bending Tests

Experimental and numerical analysis of mechanical characteristics of fused deposition processed honeycomb fabricated from PLA or ULTEM 9085

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