Experimental Evaluation of Low Velocity Impact Properties and Damage Progression on Bamboo/Glass Hybrid Composites Subjected to Different Impact Energy Levels

Abstract

Six impact energy values, ranging from 2.5 J to 10 J, were applied to study the impact properties of neat epoxy and bamboo composites, while six impact energy values, ranging from 10 J to 35 J, were applied on bamboo/glass hybrid composites. Woven glass fibre was embedded at the outermost top and bottom layer of bamboo powder-filled epoxy composites, producing sandwich structured hybrid composites through lay-up and molding techniques. A drop weight impact test was performed to study the impact properties. A peak force analysis showed that neat epoxy has the stiffest projectile for targeting interaction, while inconsistent peak force data was collected for the non-hybrid composites. The non-hybrid composites could withstand up to 10 J, while the hybrid composites showed a total failure at 35 J. It can be concluded that increasing the filler loading lessened the severity of damages in non-hybrid composites, while introducing the woven glass fibre could slow down the penetration of the impactor, thus lowering the chances of a total failure of the composites.

Low-Velocity Impact Analysis of Pineapple Leaf Fiber (PALF) Hybrid Composites

“…A glass fiber mat E600 purchased from Mechasolve Engineering Sendirian Berhad (Selangor, Malaysia) was used to fabricate the hybrid, as well as for the glass fiber composite. The density, tensile strength, and tensile modulus properties of the glass fiber are 2.58 g/cm 3 , 3445 MPa, and 72.3 GPa, respectively [ 15 ]. Both Smooth-On brand epoxy and hardener (Pennsylvania, USA) are used.…”

“…The type of epoxy used is Epoxamite100 and 103 slow hardener. The density, tensile strength, and tensile modulus properties of epoxy are 1.10 g/cm 3 , 54 MPa, 3.2 GPa, respectively [ 15 ].…”

Physical, Mechanical and Perforation Resistance of Natural-Synthetic Fiber Interply Laminate Hybrid Composites

“…Shah et al studied the hybridisation of bamboo and glass-reinforced epoxy composites. The use of woven glass fibre in composite laminates could slow the impactor’s penetration, reducing the likelihood of the composites failing completely [ 153 ]. Chen et al investigated the effects of hybridisation of a carbon/glass/basalt-reinforced composite on the low velocity impact resistance.…”

Thermoplastic Hybrid Composites with Wood Fibers: Bond Strength of Back-Injected Structures

“…Instrumented puncture impact tests or drop weight tests are known methods to test composites and natural fiber-reinforced composites [ 54 , 55 , 56 , 57 , 58 , 59 , 60 ]. There are no articles that examine hybrid back-injected composite structures with natural or wood fibers.…”