Buy article PDF
The purchased file will be sent to you
via email after the payment is completed.
US$ 35
|
Steel and Composite Structures Volume 58, Number 4, February 25 2026 , pages 459-476 DOI: https://doi.org/10.12989/scs.2026.58.4.459 |
|
|
|
Investigation of the effect of Kevlar and glass fibers on the flexural and impact behavior of sandwich composite panels with a rubberized cork core |
||
Hadi Rezghi Maleki, Masoud Roustaei, Pooya Parvandeh,
Dursun Meriç, Hasan Gedikli
|
||
| Abstract | ||
| This study investigated the effect of fiber type on the mechanical behavior of sandwich composite structures with a rubberized cork core. The specimens were fabricated using Kevlar/epoxy and glass/epoxy as face sheets, while a low-density, energy-absorbing rubberized cork was used as the core material in all samples. The manufacturing process was carried out through hand lay-up, followed by pressing and oven curing to ensure proper bonding and final mechanical strength. To evaluate the mechanical performance, the samples underwent standard three-point flexural and low-velocity impact tests. The flexural test results indicated that although both types of composites exhibited suitable elastic behavior in the initial stages, their ultimate flexural strength was relatively low, with failure occurring under moderate loads. In impact tests, Kevlar/epoxy face sheet samples demonstrated higher impact resistance and suffered relatively less damage, whereas glass/epoxy samples showed greater vulnerability and experienced larger deformations. Analysis of force-time, force-displacement, and energy absorption curves revealed that the cellular structure of cork played a crucial role in preventing full penetration and effectively absorbing part of the impact energy. | ||
| Key Words | ||
| flexural property; glass fibers; Kevlar fibers; low-velocity impact; rubberized cork core | ||
| Address | ||
| Hadi Rezghi Maleki:Department of Mechanical Engineering, Faculty of Engineering, University of Bonab, Bonab, Iran Masoud Roustaei:Faculty of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran Pooya Parvandeh:Faculty of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran Dursun Meriç:Department of Mechanical Engineering, Karadeniz Technical University, Trabzon, Turkey Hasan Gedikli:Department of Mechanical Engineering, Karadeniz Technical University, Trabzon, Turkey | ||