Mixed mode fracture behavior of short-particle engineered wood

Torabi, Ehsan; Ghouli, Saeid; Marșavina, Liviu; Ayatollahi, M.R.

doi:10.1016/j.tafmec.2021.103054

Cited by 10 publications

(9 citation statements)

References 32 publications

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“…The average (FSP) values obtained were 24.1% for Amouk and 26.7% for Dabema. These values are close to those reported in the literature (24% and 27%, respectively), 35,55 with a marginal difference of around 1% compared to those reported by Gérard et al 35 and Tropix7 Cirad. 55 Shrinkage and shrinkage coefficients.…”

Section: Physical Propertiessupporting

confidence: 90%

“…These values are close to those reported in the literature (24% and 27%, respectively), 35,55 with a marginal difference of around 1% compared to those reported by Gérard et al 35 and Tropix7 Cirad. 55 Shrinkage and shrinkage coefficients. The shrinkage tests indicate no significant difference between the species studied for radial and volume shrinkage, except for tangential shrinkage where this is noticeable (Table 6).…”

Section: Physical Propertiessupporting

confidence: 90%

“…55 These results suggest that the species studied wood can be considered to be of average resistance and, therefore, can be used in construction engineering, flooring, and joinery, as suggested by several authors. 13,19,[55][56][57] Fibre saturation point. The hygroscopic behaviour of the species studied is shown in Figure 5.…”

Section: Physical Propertiessupporting

confidence: 58%

“…According to these results and certain authors these wood species could qualify as medium-shrinkage species. 55,58 It is also important to note that the very low values of shrinkage coefficients in the radial direction obtained (0.25 ± 0.03 and 0.29 ± 0.01, respectively, for Amouk and Dabema) could be described as homogeneous and dimensionally stable species. 35,55 Based on these results, the studied species could be recommended for work in which dimensional changes are less significant, such as interior joinery, flooring, panelling and heavy structural work (e.g., heavy frames, staircases, bonded laminates, vehicle or container bottoms).…”

Section: Physical Propertiesmentioning

confidence: 93%

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Physical and mechanical properties of two tropical wood (Detarium macrocarpum and Piptadeniastrum africanum) and their potential as substitutes to traditionally used wood in Cameroon

Kana,

Biwolé,

Mejouyo Huisken

et al. 2024

International Wood Products Journal

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This study aimed to characterise two little-known woods and discuss their potential to replace those heavily exploited in Cameroon's forests. Amouk (Detarium macrocarpum) and Dabema (Piptadeniastrum africanum) were characterised for their physical and mechanical properties. Density, shrinkage, desorption kinetics, shear strength, tensile strength and modulus of elasticity (MOE) in compression and flexion were determined. A Weibull analysis was performed to predict their failure. It was found that Amouk and Dabéma can be classified as medium-heavy wood with low shrinkage and desorption, following Midilli's empirical model. The physical and mechanical characterisations show that the density, strength and MOE parameters of the woods are close to each other and enable them to be classified as medium-strength woods. The probability of failure in compression follows Weibull's law. These woods can, therefore, be used in structural applications such as construction, replacing common woods.

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Section: Physical Propertiessupporting

confidence: 90%

Section: Physical Propertiessupporting

confidence: 90%

Section: Physical Propertiessupporting

confidence: 58%

Section: Physical Propertiesmentioning

confidence: 93%

See 2 more Smart Citations

Physical and mechanical properties of two tropical wood (Detarium macrocarpum and Piptadeniastrum africanum) and their potential as substitutes to traditionally used wood in Cameroon

Kana,

Biwolé,

Mejouyo Huisken

et al. 2024

International Wood Products Journal

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“…The effect of size on the fracture toughness was investigated by Scorza et al (2019) using different geometric sizes of notched PB beams tested under three-point bending. The fracture properties of MDF and PB were also investigated under pure modes I and II and also under the mixed mode loading conditions (Torabi et al 2021). Yoshihara and Mizuno (2014) investigated the effects of crack length on the mode I critical stress intensity factor of medium-density fiberboard (MDF) using the SENB test.…”

Section: Introductionmentioning

confidence: 99%

Effect of crack length on fracture behavior of particleboard

Wang

Konukcu

2022

BioRes

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The effect of crack length on the fracture behavior of particleboard was investigated using the single-edge-notched bending (SENB) test method under mode I loading. The initial slope (kinit), critical stress intensity factor (KIC), specific fracture energy (Gf), and brittleness number were calculated for five different crack length/specimen width (a/W) ratios varying from 0.1 to 0.9 at intervals of 0.2. The results show that the fracture properties were significantly higher for specimens with an a/W ratio of 0.1 than for the others. However, for the critical stress intensity factor and specific fracture energy, there were no significant differences among the a/W ratios of 0.3, 0.5, and 0.7 where the crack tip was placed in the core layer of the particleboard. In general, as the a/W ratio decreased, the stiffness of the material increased, and the specimens with an a/W ratio of 0.1 showed brittle behavior. However, there was no statistically significant difference between a/W ratios of 0.5 and 0.7.

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