Blast Resistant Design

Single Abstract

342125 - Impact Behaviour of Sandwich Panels made of Flax Fiber-Reinforced Bio-Based Polymers Face Sheets and Foam Cores

Saturday, April 21
8:00 AM - 9:30 AM
Location: 202CD

In this paper, the impact behaviour of sandwich panels constructed of flax fibre-reinforced polymer (FRP) facings and closed cell polyisocyanurate foam cores is studied. A total of 27 sandwich beam specimens (1200 mm long and 150 mm wide) made of 75 mm thick foam have been fabricated and will be tested under impact. The parameters of the study are three core densities (32, 64, and 96 kg/m3) and three facing thicknesses (one, two, and three layers). Three identical specimens per case have been prepared. A bidirectional flax fabric (400 g/m2) was used for face sheets. A bio-based epoxy resin, with an approximate bio-content of 30%, was used to make the FRP facings. Three of each specimen type will be tested using a drop weight impact applied at mid-span. One of each of these specimens will be tested multiple times increasing the kinetic energy until failure. The kinetic energy will be increased by first increasing the drop height and then, if necessary, adding additional weight to the impactor and resetting the height to keep the increase in energy constant. The remaining two specimens will be tested once at the energy that caused failure in the first specimen. The acceleration of the impactor and the specimen, the drop weight velocity, and the top and bottom facing strains at mid-span will be measured. It is expected that ultimate energy absorption and strength of the specimens will increase as both the core density and facing thickness increase. The aim of this paper is to provide data to the field of study, provide insight into the structural behavior of these types of structures and show their viability for use in infrastructure. With further research, there is the potential that these types of structures could be included in structural building codes. This is on-going research and results will be available for the submission of the full paper.

Pedram Sadeghian

Assistant Professor and Canada Research Chair in Sustainable Infrastructure
Dalhousie University

Dr. Sadeghian is an Assistant Professor and Canada Research Chair in Sustainable Infrastructure in the Department of Civil and Resource Engineering at Dalhousie University. His research, which explores how advanced materials and innovative technologies can increase the sustainability of existing and new infrastructure, such as bridges and highways, will help lead to longer-lasting, environmentally friendly infrastructure.

Presentation(s):

Send Email for Pedram Sadeghian

Amir Fam

Professor
Queen's University

Dr. Fam is the Donald and Sarah Munro Chair in Engineering and Applied Science and the Associate Dean (Research and Graduate Studies) in the Faculty of Engineering and Applied Science at Queen’s University. He holds a B.Sc. in Civil Engineering from Alexandria University and an M.Sc. and Ph.D. in Civil Engineering (structures) from the University of Manitoba. An active researcher in the areas of structural engineering using fiber reinforced polymer (FRP) reinforcements and bio-based composites in new construction and retrofitting aging bridges and buildings, Dr. Fam has over 140 publications. He is an internationally recognized leader in the area of FRP tubes behavior and analysis. Dr. Fam is the Co-Editor-in-Chief of the Canadian Journal of Civil Engineering (CJCE) and an Associate Editor/Member of Editorial Board of several journals.

Presentation(s):

Send Email for Amir Fam

Dillon J. Betts

Graduate Student
Dalhousie University

Dillon is a graduate student in the Department of Civil and Resource Engineering at Dalhousie University, Canada.

Presentation(s):

Send Email for Dillon Betts


Assets

342125 - Impact Behaviour of Sandwich Panels made of Flax Fiber-Reinforced Bio-Based Polymers Face Sheets and Foam Cores



Attendees who have favorited this

Please enter your access key

The asset you are trying to access is locked. Please enter your access key to unlock.

Send Email for Impact Behaviour of Sandwich Panels made of Flax Fiber-Reinforced Bio-Based Polymers Face Sheets and Foam Cores