The Effect of Biocomposite Material In A Composite Structure Under Compression Loading

• Main Author: Sweeney, Benjamin Andrew
• Format: Others
• Published: DigitalCommons@CalPoly 2017
• Subjects: biocomposites; composites; sustainability; compression loading; bamboo; structures; Aeronautical Vehicles; Biology and Biomimetic Materials; Computer-Aided Engineering and Design; Other Aerospace Engineering; Other Civil and Environmental Engineering; Other Materials Science and Engineering; Other Mechanical Engineering; Structural Engineering; Structural Materials; Structures and Materials
• Online Access: https://digitalcommons.calpoly.edu/theses/1932; https://digitalcommons.calpoly.edu/cgi/viewcontent.cgi?article=2922&context=theses

While composite structures exhibit exceptional strength and weight saving possibilities for engineering applications, sometimes their overall cost and/or material performance can limit their usage when compared to conventional structural materials. Meanwhile ‘biocomposites’, composite structures consisting of natural fibers (i.e. bamboo fibers), display higher cost efficiency and unique structural benefits such as ‘sustainability’. This analysis will determine if the integration of these two different types of composites are beneficial to the overall structure. Specifically, the structure will consist of a one internal bamboo veneer biocomposite ply; and two external carbon fiber weave composite plies surrounding the bamboo biocomposite. To acquire results of this study, the hypothesized composite structure will consist of varied trapezoidal corrugated specimens and tested in uniaxial compression loading. Thereafter, this test data will be used to ultimately design, manufacture, and test a structural biocomposite/composite box, intended to carry extremely high compressive loads; relative to its own weight. A finite element analysis of this test will be used to validate experimental data. After running the experiment, the carbon fiber with bamboo test sample results were compared to that of only carbon fiber test sample. The carbon fiber samples resulted in a maximum compressive load difference of only 23% higher loads when compared to the carbon fiber with bamboo, on average. These findings are discussed throughout.