College - Author 1
College of Engineering
Department - Author 1
Materials Engineering Department
Degree Name - Author 1
BS in Materials Engineering
College - Author 2
College of Engineering
Department - Author 2
Materials Engineering Department
Degree - Author 2
BS in Materials Engineering
College - Author 3
College of Engineering
Department - Author 3
Materials Engineering Department
Degree - Author 3
BS in Materials Engineering
Date
6-2022
Primary Advisor
Blair London, College of Engineering, Materials Engineering Department
Abstract/Summary
The addition of cladding layers to composite laminates is used in industry to improve bond adhesion and the ease of manufacturing. However, there is no public data on the effects of cladding layers on the mechanical properties of composite components. To directly observe how cladding layers affect mechanical properties, four laminates with zero, one, two, and three cladding layers of twill fabric were added symmetrically to a biased core. The mechanical testing performed was tensile, short beam strength, and compression testing in the longitudinal and transverse directions. The measured strengths were related to the longitudinal properties of the core, and this was done to model the trends beyond this specific laminate. Second, third, and fourth order polynomials were tested for all testing methods and directions. The polynomial with the highest R2 value above 0.90 was selected to model a trend if it was observed for the method-direction groupings. If a trend was not observed, adding a cladding layer does not need to be considered for that grouping. The significant trends can be described as a decrease in the longitudinal tensile strength, an increase in the transverse tensile strength and short beam strength, and the other test conditions did not yield a significant and meaningful correlation.
URL: https://digitalcommons.calpoly.edu/matesp/260