Tensile static and fatigue behaviour of sisal fibres

Belaadi, Ahmed; Bezazi, Abderrezak; Bourchak, Mostefa; Scarpa, Fabrizio

doi:10.1016/j.matdes.2012.09.048

Cited by 136 publications

(54 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The tests were conducted on a universal material tester (WDW3050) at 0.5 mm/min cross-girder rate, which corresponds to quasistatic tensile behavior (Belaadi et al 2013) as strain rate increases from 2.083 9 10 -4 /s (GL = 40 mm) to 8.333 9 10 -4 /s (GL = 10 mm) in the linear region of the stress-strain curve. A total of 50 samples were tested at each GL.…”

Section: Tensile Propertymentioning

confidence: 99%

Investigations on the structure and properties of palm leaf sheath fiber

et al. 2015

View full text Add to dashboard Cite

As a natural cellulosic fiber, palm leaf sheath fiber (palm fiber) is widely-distributed and abundant cellulose and engineering fiber resource. To obtain essential information about palm fiber, its morphology, composition, chemical and crystal structure, tensile characteristic and adsorption property were investigated. Test results of palm fiber were compared with those of other natural cellulosic fibers. Palm fiber presents aligned Si-dots on the surface and abundant fiber cells with spiral vessel tissues at the cross section. The chemical composition reveals that palm fiber contains abundant lignin but smaller amount of cellulose (the content of 28.16 %). In addition, investigation illustrates that cellulose in palm fiber is I b -dominant type, which is also confirmed by FTIR analysis. X-ray diffraction study shows that the crystallinity (30.52 %), crystallinity index (36.5 %) and crystal size (2.5 nm) are all apparently lower than those of ramie, flax and bamboo fibers. Given the low crystallinity and cellulose content of palm fiber, its tensile strength and Young's modulus are also lower than those of other fibers. Moreover, palm fiber exhibits excellent breaking elongation, high moisture regain, distinct yield characteristic, and variability in strength. The modified Weibull model was used to study the tensile behavior of palm fiber. This model accurately predicted fiber strength. The absorption volume in isotherm of carbonized palm fiber increases with rising pressure, thus indicating good porous structure of the fiber.

show abstract

Section: Tensile Propertymentioning

confidence: 99%

Investigations on the structure and properties of palm leaf sheath fiber

et al. 2015

View full text Add to dashboard Cite

show abstract

“…Other studies provide expanded databases of experimental results related to particular types of natural fibers [8][9][10][11][12]. Some research groups have also attempted to find how different factors affect the performance of existing natural fibers composites [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Multi-axial mechanical characterization of jute fiber/polyester composite materials

Dobah

Bourchak

Bezazi

et al. 2016

Composites Part B: Engineering

Self Cite

View full text Add to dashboard Cite

The work describes the mechanics of novel woven jute fibers reinforced polyester (JFRP) laminates under uniaxial and multi-axial static and fatigue loading cases. JFRP laminates with 25 % fibre volume fraction (FVF) have been manufactured using a hand-layup molding technique at a low pressure. Static uniaxial tests have shown that these novel bio-reinforced laminates have an ultimate tensile strength around 42 MPa under tensile loading and 7.5 N-m under torsional loading. The Multi-axial (tension/torsion) static tests yield an ultimate strength of 21.7 MPa and 5 N-m for tensile and torsion loading conditions, respectively.Fatigue tests have been carried out under displacement and angular control at three different loading levels with a frequency of 5Hz. The fatigue tests results are extensively analyzed using stiffness degradation behavior, hysteresis loops, energy dissipation and strain versus number of cycles (ɛ-N) diagrams. The fatigue endurance limit (over one million cycles) for JFRP is achieved at a stress level of 65% of ultimate displacement. The implication of this work is the use of these materials in areas such as car and aircraft interiors promises to significantly reduce weight, cost and carbon footprints without sacrificing performance.

show abstract

“…From the mechanical viewpoint, the major argument supporting the use of natural fibres is the low material density, which allows the achievement of high levels of specific properties [15][16][17][18]. As shown in Table 1, the specific Young's modulus of natural fibres, more particularly hemp, competes with those of glass and steel fibres [19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%