Flexural and creep strengthening for wood/PVC composite members using flat bar strips

Pulngern, Tawich; Padyenchean, C.; Rosarpitak, Vichai; Prapruit, W.; Sombatsompop, Narongrit

doi:10.1016/j.matdes.2011.02.005

Cited by 31 publications

(19 citation statements)

References 21 publications

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“…A generalized Burger's viscoelastic model consisting of one Maxwell element and one Kelvin element connected in series has been used to describe short‐term creep response . Xu et al , Lee et al , and Rimdusit et al explained the model's approach to characterizing creep.…”

Section: Introductionmentioning

confidence: 99%

Effects of fiber size on short-term creep behavior of wood fiber/HDPE composites

Wang

Huang

et al. 2014

Polym Eng Sci

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When natural fiber‐thermoplastic composites are used in long‐term loading applications, investigating creep behavior is essential. The creep behavior of high‐density polyethylene (HDPE)‐based composites reinforced with four sizes of wood fibers (WFs) (120–80, 80–40, 40–20, and 20–10 mesh) was investigated. The instantaneous deformation and creep strain of all WF/HDPE composites increased at a fixed loading level when the temperature was increased incrementally from 25 to 85°C. At a constant loading level, composites containing the larger‐sized WFs had better creep resistance than those containing smaller‐sized fibers at all measured temperatures. The creep properties of composites with smaller‐sized WFs were more temperature‐dependent than those with larger‐sized WFs. Two creep models (Burger's model and Findley's power law model) were used to fit the measured creep data. A time–temperature superposition principle calculation was attempted for long‐term creep prediction. The Findley model fitted the composite creep curves better than the four‐element Burger's model. From the predicted creep response of the WF/HDPE composites, two groups of small fibers (120–80 and 80–40 mesh) had the lowest creep resistance over long periods of time at the reference temperature of 25°C. The largest WFs (10–20 mesh) provided the best composite creep resistance. POLYM. ENG. SCI., 55:693–700, 2015. © 2014 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Effects of fiber size on short-term creep behavior of wood fiber/HDPE composites

Wang

Huang

et al. 2014

Polym Eng Sci

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“…However, due to too much variation in composite structure design, effective models to describe all the mechanical properties of composites may be numbered or not abundant at all. [9][10][11][12][13][14][15] When more than one kind of fibre is sued to reinforce thermoplastic composite, which model is more effective? In the present study, we compared three models to describe wood/flax fibre reinforced PP composites.…”

Section: Other Modelsmentioning

confidence: 99%

Application of mechanical model for natural fibre reinforced polymer composites

Cao

Wang

2014

Materials Research Innovations

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Mechanical models were often used to describe and predict synthetic fibre reinforced thermosetting polymers. However, natural fibre reinforced thermoplastic polymers were less mentioned. In this paper, the application of mathematical methods in natural fibre-polymer composite was reviewed. Typical mechanical models, such as the rule of mixtures, inverse rule of mixtures and Hirsch models, were presented. The advantages and disadvantages of each model were pointed out. Finally, a flax-wood-polypropylene composite was taken as an example. Some models were compared to describe this composite.

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“…One method of increasing fracture toughness and strength is to use chopped natural or synthetic fibers to produce hybrid composites which yielded limited enhancements. Yet, to yield a significant improvement, some efforts have been conducted to reinforce the already produced WPC profiles with adhesion of fiber‐reinforced composites and metallic sheets onto their surfaces . In these efforts, special equipment and materials were employed which are not applicable in a mass production scheme and can also diminish the aesthetic quality of the WPC surfaces.…”

Section: Introductionmentioning

confidence: 99%

A modular extrusion die design to produce continuous glass fibers reinforced PVC‐wood composite profiles

2016

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This paper presents design and manufacture of a modular die to produce profiles of wood plastic composites (WPCs) reinforced with continuous glass fibers. As the strength and fracture toughness of WPCs are not convincing for load bearing applications, strengthening WPC profiles with continuous fibers could provide sufficient strength to meet the requirements. In this study, a modular profile die with various cross sections, i.e., I‐, U‐, and rectangular‐shaped was designed and manufactured. The approach to balance the flow for the various sections was to implement a flow restricting mechanism along the melt flow path. Impregnated glass rovings (IMGRs) were introduced continuously into the flow to reinforce the profiles through specially designed guides. Experimentations indicated the sound performance of the designed and implemented modular die. Three point bending tests were carried out to evaluate the flexural properties. Improvements in flexural strength and modulus were noticeable. The highest improvement in bending strength with four glass fibers was observed to be 23%, 38%, and 58% for I‐, U‐, and rectangular‐shaped profiles, respectively. POLYM. COMPOS., 39:2268–2276, 2018. © 2016 Society of Plastics Engineers

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Flexural and creep strengthening for wood/PVC composite members using flat bar strips

Cited by 31 publications

References 21 publications

Effects of fiber size on short-term creep behavior of wood fiber/HDPE composites

Effects of fiber size on short-term creep behavior of wood fiber/HDPE composites

Application of mechanical model for natural fibre reinforced polymer composites

A modular extrusion die design to produce continuous glass fibers reinforced PVC‐wood composite profiles

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