탄소섬유 복합재료 구조부재 물성 획득 및 원형부재 충격 전산모사
Acquisition of material properties and Computational Investigation of impact Collapse characteristics of circular cross section carbon fiber composites
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초록
Carbon Fiber Reinforced Plastics (CFRP) is composed of carbon fiber and resin. Carbon fiber has superior strength and stiffness and is lighter than primary light metals. When CFRP is applied to structural parts, these general mechanical properties depend on the orientation of the carbon fiber. The mechanical properties of CFRP are obtained through material testing, such as applying tension or compression in different fiber directions. In this study, the physical properties of CFRP were acquired to investigate the impact characteristics of structural members to which CFRP with different layer structures was applied through impact tests and simulations, and based on this, an impact simulation was performed on circular structural members. Three failure criteria were applied to investigate the collapse behavior due to impact loading in the finite element model of the simulation. Moreover, the simulation results according to each failure criterion were compared and considered.
Abstract
Carbon Fiber Reinforced Plastics (CFRP) is composed of carbon fiber and resin. Carbon fiber has superior strength and stiffness and is lighter than primary light metals. When CFRP is applied to structural parts, these general mechanical properties depend on the orientation of the carbon fiber. The mechanical properties of CFRP are obtained through material testing, such as applying tension or compression in different fiber directions. In this study, the physical properties of CFRP were acquired to investigate the impact characteristics of structural members to which CFRP with different layer structures was applied through impact tests and simulations, and based on this, an impact simulation was performed on circular structural members. Three failure criteria were applied to investigate the collapse behavior due to impact loading in the finite element model of the simulation. Moreover, the simulation results according to each failure criterion were compared and considered.
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