Separation Mode Analysis of Track Assembly of Main Battle Tank

Lee, Kyoung-Ho; Park, Byoung-Hoon

Journal of the Korea Institute of Military Science and Technology 2007;10(3):173-180.

Kyoung-Ho Lee, Byoung-Hoon Park

궤도형 전투차량의 궤도박리 발생 및 성장모드 예측에 관한 연구

이경호, 박병훈

국방과학연구소

Abstract

In this paper, we have proposed a simple finite element model for separation mode analysis on the roadwheel and track assembly of main battle tank and established a contact stress-based mechanism which could explain the initiation and growth of separation defect occurred during the test of padreplacable track. It was proved that the longitudinal contact shear stress component on the pin hole region of the track shoe body which is parallel to the driving direction is consistent with the crack initiation at the bonding surface between track shoe and wheel-side rubber. The longitudinal shear stress increased locally near the separated region after the separation initiated. So we could assume that the local stress concentration accelerates the separation growth according to the shear mode.

Key Words: Main Battle Tank, Track, Separation, Finite element, Contact, Durability