DOI: https://doi.org/10.15368/theses.2015.82
Available at: https://digitalcommons.calpoly.edu/theses/1426
Date of Award
6-2015
Degree Name
MS in Mechanical Engineering
Department/Program
Mechanical Engineering
Advisor
Joseph Mello
Abstract
The Hashin failure criteria and damage evolution model for laminated fiber reinforced polymers are explored. A series of tensile coupon finite element analyses are run to characterize the variables in the physical model as well as modeling techniques for using an explicit dynamic solver for a quasi-static problem. An attempt to validate the model on an axial tube crush is presented. It was found that fiber buckling was not occurring at the impactor-tube interface. Results and speculation as to why the failure initiation is incorrect are discussed. Lessons learned from the tube crush are applied successfully to the quasi-static Formula SAE nosecone crush test. The model is validated by experimental data and the impact metrics between the test and model are within 5%. Future work and possible optimization techniques are discussed.
Included in
Automotive Engineering Commons, Computer-Aided Engineering and Design Commons, Mechanics of Materials Commons
