Fatigue and Fracture Properties of Laminated Bamboo Strips from Gigantochloa scortechinii Polyester Composites

Abstract

The fatigue and fracture properties of bamboo fiber composites made of woven layers were investigated. This study utilized a specific type of bamboo species named Gigantochloa scortechinii (Buluh Semantan). In these experiments, unsaturated polyester (UP) and bamboo fiber (BF) strips were prepared through a hand lay-up technique using 3-mm thick aluminum mould. The composite bamboo strips had a thickness of 1.5 mm. The strips were woven together to make a single layer. The layer was then laminated into several thicknesses. The specimens were then characterized using fatigue and fracture tests. A fatigue limit of 30 MPa and fracture toughness of 5 to 8 MPa √ were obtained. These findings suggest that the bamboo strips, based on unsaturated polyester, provided relatively good fatigue and fracture properties and a good method of reinforcing fibers to combat fatigue and fracture failures.

Fracture and fatigue behavior of Bambusa Vulgaris-Schrad Bamboo

“…Hence, the current results suggest that fatigue failure does not occur in Bambusa-Vulgaris Schrad bamboo when the peak stresses are significantly below the critical buckling stress. The above results are consistent with prior reports by Ali et al (Ali et al, 2016), who have also shown that fatigue damage in bamboo is associated with interfacial debonding/cracking, matrix cracking, and fiber buckling/fracture (Figures 9 and 10).…”

Effect of Chemical Treatments on Morphological, Physical and Mechanical Properties of Bamboo/Glass Fibers Hybrid Laminated Composite

“…The previous research of laminated bamboo composites carried out by Ali et al has been used the buluh semantan bamboo (Gigantochloa scortechinii) with a thickness of 3 mm. It resulted in the best tensile strength of 30 MPa [16]. Another research of HLC using other natural fibers such as Agave sisalana and jute combined with glass fiber is a woven mat (600 gsm) conducted by Ramesh et al [17].…”

Characteristics laminates composite bamboo

“…Laminated bamboo boards can also overcome the weaknesses of round bamboo such as limited dimensions and size irregularities between segments [7,8]. Gigantochloa scortechinii bamboo species has been widely used by researchers to produce laminated bamboo boards [9], plywood [10] and polymer bamboo composites [11,12]. Meanwhile, Gigantochloa levis has also been used to produce glued laminated bamboo [13], plywood [14] and bamboo/epoxy composites [15].…”