Understanding the impact of fiber orientation on mechanical, interlaminar shear strength, and fracture properties of jute–banana hybrid composite laminates

Abstract

Jute and banana fibers are biodegradable green fibers being increasingly used to replace synthetic fibers in fiber-reinforced polymer composites. Integration of jute and banana distinct natural fibers has the potential to improve composite performance in secondary structural applications. In this study, an equal quantity of unidirectional jute and banana fibers with four different fiber orientations [(0/0) 3s , (0/45) 3s , (0/90) 3s , and (+45/À45) 3s ] was embedded in phenol formaldehyde resin to make hybrid laminates using the hot press method. Tensile, flexural, impact, interlaminar shear strength (ILSS), and single-end notch bend tests are performed in accordance with the ASTM standards to evaluate the effect of fiber orientation on natural fiber hybrid composites (NFHCs).Experimental results revealed that changing the fiber orientations [(0/0) 3s ] leads to a major impact on reducing the mechanical properties of NFHC laminates to the extent of 39%. Furthermore, the tensile strength, Young's modulus, impact and ILSSs, and fracture toughness were found to be 37% higher for the (0 /0 ) 3s composite. Additionally, tensile, flexural, and impact fractured specimens were examined by scanning electron microscopy to understand the fiber-matrix failure behavior due to inter-ply orientation in NFHCs.

Prominence of quantitative fiber loading on free vibration, damping behavior, inter‐laminar shear strength, fracture toughness, thermal conductivity, and flammability properties ofjute–bananahybrid fiber phenol‐formaldehyde composites

“…Stiffness is related to the modulus and tensile strength. 26 According to our earlier research, 6 the PJB-2 composite has high tensile strength (53.60 MPa) and a high young's modulus (4529 MPa) in comparison to all other composites. Hence, the outcomes of the vibrational modal test were considerable.…”

“…However, the optimized chemical treatment will certainly improve the fiber wetting, adhesion, and porosity, there by increases composite's characteristics. However, raising the NaOH concentration more than 1% and soaking the fibers in NaOH solution for an extended length of time causes surface degradation, reducing the composite mechanical characteristics 5–7 …”

“…However, raising the NaOH concentration more than 1% and soaking the fibers in NaOH solution for an extended length of time causes surface degradation, reducing the composite mechanical characteristics. [5][6][7] Composites reinforced with Jute fibers have grown in popularity in recent years. In comparison to synthetic fibers used in FRP composites, Jute fibers provide many benefits, including biodegradability, acceptable material performance with a low specific mass, and cost.…”

Studies on mechanical and thermal properties of cellulosic fiber fillers reinforced epoxy composites

“…[ 62,63 ] The higher amount of cellulose content resulted in more tensile strength, which was owing to a higher degree of cellulose polymerization with the epoxy matrix and also the capability of tension resistance. [ 64 ] In this current research work, the jute has higher cellulose contents and is then followed by bamboo, and coir fibers. The tensile increment in hybrid composites was mainly due to the reinforcement of jute and bamboo fibers.…”

Mode II interlaminar fracture toughness enhancement of fine z‐pin reinforced carbon fiber composite with low fraction of pins

“…[1,2] However, the susceptibility of composite laminates to delamination has limited their application due to their laminated structure. [3][4][5] The types of delamination crack are divided into mode I and mode II according to opening crack and sliding crack. Generally, under bending or out-of-plane shear stresses mode II delamination cracks are prone to be formed.…”