Examination of the implications of fibers’ alignment and volume fraction on the engineering constants of natural fiber epoxy lamina using analytical research

• Published in: Industrial crops and products Vol. 222; p. 119615
• Main Authors: Vishwash, B., Sachidananda, K.B., Shivakumar, N.D.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 15.12.2024
• Subjects: epoxides; Fiber volume fraction and engineering constants; flax; hemp; jute; modulus of elasticity; Natural Fiber Reinforced Polymer Matrix Composites (NFRPCs); Poisson distribution; sisal; Fiber volume fraction and engineering constants; Natural Fiber Reinforced Polymer Matrix Composites (NFRPCs)
• ISSN: 0926-6690
• DOI: 10.1016/j.indcrop.2024.119615

The primary aim of this effort is to examine how the natural fiber orientation angle affects the lamina's engineering constants, which include the lamina level shear coupling coefficients (ηxy,x and ηxy,y), major Poisson's ratio (νxy), longitudinal and transverse Young's moduli (Ex and Ey), and shear modulus (Gxy). The lamina that is being studied is made of epoxy and natural fiber. Six natural fibers - alfa, flax, hemp, jute, nettle, and sisal fibers—are the subject of the investigation. For every one of the aforementioned engineering constants, the study evaluates the performance of six natural fiber epoxy lamina. This research also presents the lamina behavior for varying fiber volume fractions. The Macromechanics of lamina is used in an analytical study to conduct the examination. The analysis revealed that the lamina's engineering constants are significantly influenced by the volume percentage and orientation of the fibers. For each fiber orientation angle between 00 and 900, as well as for each fiber volume fraction between 0 % (totally matrix) and 100 % (completely fibers) in steps of 5 %, the study provides a thorough variations of the natural fiber epoxy lamina's engineering constants. •Analytical research on the natural fiber reinforced composites.•Prediction of engineering constants.•Influence of fiber alignment on the engineering constants.•Influence of fiber volume fraction on the engineering constants.•Macromechanics and micromechanics of composite materials based analytical research.