Journal Textile Coloration and Finishing Year / Vol., Issue, Month 2022 / V.34,no.4,Dec Title Effect of Hole Processing Condition on Carbon Fiber-Reinforced Plastic Composites for Lightweight Combat Backpack Frames Authors Hyeok-Jin Kim, Dong-Jun Kwon1, Jea-Dong Lee, Hyun-Sik Son, and Young-ho Jin Institution/Affiliations DYETEC Institute), 1Gyeongsang National University Pages/Total page pp.241 ~ 249 / 9 Language Korean Abstract As for military backpacks in Korea, utility backpack products equipped with various functions along with comfort and convenience are being developed. As a result, the volume and weight of the backpack increase, and many lightweight studies of the materials forming the backpack are being conducted. This study is a basic study on frame lightweight using fiber-reinforced composites to deal with aluminum, a back frame that maintains the shape of a backpack and provides stability when worn by combatants. As is known, only fiber-reinforced composites have sufficient light weight and mechanical properties, but the mechanical properties were reviewed by drilling holes to maximize the light weight. Tensile strength and flexural strength were measured by drilling 6mm, 12mm, 18mm, and 24mm holes, and the tensile strength and flexural strength were measured when 1, 3, 5, and 7 holes of 12mm were increased. As a result, even when the number of holes was increased, tensile strength did not change significantly, and the flexural strength showed to be higher in the case of 3 holes and 5 holes than in the case of 1 hole. Keywords fiber reinforced composites, mechanical strength, bag back frame, open-hole, light weight Download   Reference http://koreascience.or.kr/journal/OSGGBT.page