Effect of dynamic friction and static friction in finite element analysis of carbon fiber preform

Abstract

This paper aims to improve the accuracy of the finite element analysis for the preform shape transformation according to the difference in the type of carbon fiber and friction force. The carbon fiber type (Toray T700, Zoltek), the fiber direction (0°/90°, ± 45°), and the frictional force were measured, which occurred between the fiber and the mold and between the fiber and the fiber. A comparative experiment was conducted through actual preform production by designating it as a variable for element analysis. The analysis was conducted according to the difference between the static friction coefficient and the dynamic friction coefficient in the molding analysis. Within the range of the Coulomb equation, the shear angle changing was compared with the actual preform shape to show similar results.

Enhancing GFRP fatigue durability for chassis component applications through glass fiber coupling variation

“…These composite materials, prominently exemplified by Carbon Fiber-Reinforced Plastic (CFRP), primarily employ thermosetting plastics as matrices and are widely recognized for their exceptional strength-to-weight ratio [ [6] , [7] , [8] ]. CFRP finds its application not only in enhancing the aesthetic appeal of vehicle exteriors, such as roofs, hoods, and trunk lids, but also in reinforcing critical structural components within automobiles [ 8 , 9 ]. However, the remarkable advantages offered by CFRP, in terms of weight reduction, are often overshadowed by the substantial escalation in component costs, thereby constraining its widespread adoption [ [3] , [6] , [7] , [8] , [9] ].…”

“…CFRP finds its application not only in enhancing the aesthetic appeal of vehicle exteriors, such as roofs, hoods, and trunk lids, but also in reinforcing critical structural components within automobiles [ 8 , 9 ]. However, the remarkable advantages offered by CFRP, in terms of weight reduction, are often overshadowed by the substantial escalation in component costs, thereby constraining its widespread adoption [ [3] , [6] , [7] , [8] , [9] ].…”

“…However, despite this drawback, research efforts are underway to enhance the interfacial adhesion of GFRP due to its significant cost advantages [ [12] , [13] , [14] , [15] ]. Furthermore, many automotive companies are now applying these composites in actual vehicles [ [8] , [9] , [10] , 16 ].…”