Title

The Effect of UV Radiation on Different Types of Sail Cloth

Author(s)

Landon H. Louthian

School Name

Heathwood Hall Episcopal School

Grade Level

9th Grade

Presentation Topic

Engineering

Presentation Type

Non-Mentored

Abstract

The purpose of this project was to determine how different types of popular sailcloth reacted under pressure after being exposed to ultraviolet radiation for one week. The experiment could help sailors decide what their sails should be made of. The types of sail cloth used were: dacron, kevlar laminate, and polyester laminate. Seven samples of each were cut out with one of each acting as the control group. After exposure, the samples were tested with a Mullen Burst Tester at Clemson University. The hypothesis was that if the sail cloths were exposed to UVR for a week, then they would react and weaken under UVR with polyester being the strongest and dacron being the weakest. The null hypothesis was that if the samples were exposed to UVR for a week, the samples would not react and would not weaken due to the radiation. The results favored the null hypothesis with each variable weakening insignificantly, and dacron being the strongest, and kevlar laminate being the weakest. In conclusion, the sail cloth was not exposed to the radiation long enough to inflict any serious damage.

Start Date

4-11-2015 2:30 PM

End Date

4-11-2015 2:45 PM

COinS
 
Apr 11th, 2:30 PM Apr 11th, 2:45 PM

The Effect of UV Radiation on Different Types of Sail Cloth

The purpose of this project was to determine how different types of popular sailcloth reacted under pressure after being exposed to ultraviolet radiation for one week. The experiment could help sailors decide what their sails should be made of. The types of sail cloth used were: dacron, kevlar laminate, and polyester laminate. Seven samples of each were cut out with one of each acting as the control group. After exposure, the samples were tested with a Mullen Burst Tester at Clemson University. The hypothesis was that if the sail cloths were exposed to UVR for a week, then they would react and weaken under UVR with polyester being the strongest and dacron being the weakest. The null hypothesis was that if the samples were exposed to UVR for a week, the samples would not react and would not weaken due to the radiation. The results favored the null hypothesis with each variable weakening insignificantly, and dacron being the strongest, and kevlar laminate being the weakest. In conclusion, the sail cloth was not exposed to the radiation long enough to inflict any serious damage.