Impact Response Behaviors of Laminated Composite Plates Subjected to the Transversely Impact of a Steel Ball

J. Ocean Eng. Technol. 1993;7(2):44-56.

강구에 의한 횡방향 충격을 받는 적층복합판의 충격 응답 거동

김문생,김남식,박승범,백인환

부산대학교 기계설계공학과 기계기술연구소,부산공대 기계설계과,부산공대 기계설계과,부산대학교 생산기계과 기계기술연구소

Keywords: Impact Response Behaviors, Higher-order Shear Deformation Theory, Transversely Impact, Strain Response, Wave propagation Velocity, HSDT

핵심용어: 충격 응답 거동, 고차전단변형이론, 횡방향 충격, 변화율 응답, 파동 전파 속도

Abstract

The purpose of this paper is to analyze the impact response behaviors of glass/epoxy laminated composite plates subjected to the transversely impact of a steel ball. For this purpose, dynamic finite element analysis based on the higher-order shear defomation plate theory is used to compute the contact forces, rebound velocity of a steel ball, and dynamic strain response histories. And low-velocity and high-velocity impact experiments were conducted to compare the results and compute the wave propagation velocities. The results obtained from impact experiments are in good agreement with those of dynamic finite element analysis. Also the wave propagation velocities obtained from high-velocity impact experiments and wave propagation theory agree well, and wave velocities were higher in the smaller radius of steel ball.