Low-Velocity Impact Response on Glass Fiber Reinforced 3D Integrated Woven Spacer Sandwich Composites

Abstract

This study presents an experimental investigation on the low-velocity impact response of three-dimensional integrated woven spacer sandwich composites made of high-performance glass fiber reinforced fabric and epoxy resin. 3D integrated woven spacer sandwich composites with five different specifications were produced using a hand lay-up process and tested under low-velocity impact with energies of 5 J, 10 J, and 15 J. The results revealed that the core pile’s heights and diverse impact energies significantly affect the stiffness and energy absorption capacity. There is no significant influence of face sheet thickness on impact response. Moreover, the damage morphologies of 3D integrated woven spacer sandwich composites under different impact energies were analyzed by simple visualization of the specimen. Different damage and failure mechanisms were observed, including barely visible damage, visible damage, and clearly visible damage. Moreover, it was noticed that the damage of 3D integrated woven spacer sandwich composites samples only constraints to the impacted area and does not affect the integrity of the samples.

Structural design and impact resistance of three‐dimensional structure‐reinforced flexible polymer composites

“…Weft side views, iii. Top view 27 ; (F) Images of the rectangular structure spacer fabric samples 30 ; (G) Images of the zigzag‐shaped structure spacer fabric sample 18 ; (H) Images of the trapezoidal structure spacer fabric sample 20 ; (I) Sandwich structure connected with core piles 31 …”

Enhanced impact resistance of three‐dimensional woven composites with double‐layer core structure

“…The force and stiffness decreased with the increase in core pile heights, but the energy absorption capacity increased with increasing core pile heights. [ 30 ] However, the researches on integrated double‐layer 3DWSC, and their residual strength after impact are rarely involved so far. [ 31 ]…”

“…The force and stiffness decreased with the increase in core pile heights, but the energy absorption capacity increased with increasing core pile heights. [30] However, the researches on integrated double-layer 3DWSC, and their residual strength after impact are rarely involved so far. [31] Herein, three kinds of integrated double-layer 3DWSC with different positions of middle panel were designed and prepared successfully.…”

Evaluation of the Mechanical Properties and Drilling of Glass Bead/Fiber-Reinforced Polyamide 66 (PA66)-Based Hybrid Polymer Composites

“…However, these materials are reinforced with different types of fibers [3] such as glass, carbon, basalt, and aramid, as they show comparatively low hardness and propensity to creep at high temperatures [4,5]. Glass beads (solid glass micro-beads or glass beads) are suitable for aviation and marine applications thanks to their excellent mechanical and thermal properties [6,7]. In addition, they have a strong filling ability, low and good dispersed internal tension in products, and are easily processed for filling materials.…”