{"id":762,"date":"2014-07-16T15:22:14","date_gmt":"2014-07-16T19:22:14","guid":{"rendered":"http:\/\/ip-tx-www.eos.ncsu.edu\/tecs\/?p=762"},"modified":"2014-07-16T15:22:14","modified_gmt":"2014-07-16T19:22:14","slug":"high-school-summer-textile-exploration-program-step-students-focus-on-engineering-reinforced-composite-materials","status":"publish","type":"post","link":"https:\/\/textiles.ncsu.edu\/news\/2014\/07\/high-school-summer-textile-exploration-program-step-students-focus-on-engineering-reinforced-composite-materials\/","title":{"rendered":"High School Summer Textile Exploration Program (STEP) Students Focus on Engineering Reinforced Composite Materials"},"content":{"rendered":"\n

When students new to the Wilson College of Textiles are asked what kind of products are made with textiles, their immediate answers typically include \u201cclothes,\u201d \u201cprotective gear,\u201d or \u201cmedical products.\u201d The idea of making a snowboard, a ski boat, or even an airplane almost never crosses their minds. Dr. Philip Bradford<\/a>, an assistant professor in TECS and an engineering project group leader for STEP, is on a mission to change that. He has spent the last two summers developing a STEP curriculum that introduces STEP students to fiber reinforced composite materials. \u201cAfter the five day program, students leave with not only an appreciation of all the consumer goods made from fiber reinforced composite materials but also an understanding of a few of the industrial processes used to produce them,\u201d explained Bradford . \u201cI designed this program so that students work with a few different fabrication methods and get to take samples of the composites they made home with them.\u201d A total of 19 students over two weeks participated in the composites sessions.<\/p>\n\n\n\n

A fiber reinforced composite is a material made up of two main components, high performance fibers and a resin matrix. The fibers give the composite its strength. However, textile fabrics are typically very flexible. To make a ridged composite structure, a resin matrix is added to the fibers or fabrics. The resin bonds all of the fibers together and after it is cured to a solid, gives the composite its shape. Students in the program were instructed through four fabrication methods that increased in complexity each day.<\/p>\n\n\n\n

The first day consisted of a method called Wet-Layup<\/em>. This is the most simple of the fabrication methods where liquid resin was brushed onto fiberglass fabrics, molded and then allowed to cure over night. The second day students used Roll Wrapping<\/em> to create carbon fiber tubes. This is the same process used commercially to make millions of golf club shafts, hockey sticks, and fishing rods every year. The Vacuum<\/em> Assisted Resin Transfer Moldin<\/em>g (VARTM)<\/em> process was used on the third day to make a fiberglass composite panel. VARTM is used commercially to make thousands of boat hulls and wind turbine blades. Finally, on the fourth day carbon fiber composite sandwich panels were produced by Vacuum <\/em>Bagging<\/em> resin impregnated carbon fiber fabrics, the same process used to produce the highest performance composites for the aerospace industry.<\/p>\n\n\n\n