Open AccessStatic energy absorption capacity of grid stiffened composite plates
Author(s) -
Richa Chauhan,
Anindya Bhar
Publication year - 2021
Publication title -
international journal of engineering, science and technology andb. lagos
Language(s) - English
Resource type - Journals
ISSN - 2141-2839
DOI - 10.4314/ijest.v13i1.13s
Subject(s) - materials science , composite number , composite material , structural engineering , delamination (geology) , grid , absorption (acoustics) , cracking , engineering , geology , paleontology , subduction , geodesy , tectonics
This paper presents an experimental study on the energy absorption capacity of iso-grid and ortho-grid stiffened composite plates under transverse loading. The 3-point bend test has been performed to investigate the energy absorption behavior of grid stiffened composite plates. The test results show that energy absorption capacity up to failure is improved when the load is applied on the rib side. The ortho grid stiffened structure shows a higher energy absorption capacity after failure when loaded at the rib side. The main failure modes in grid stiffened composite plates are rib fracture, matrix cracking and delamination over the skin.