유한요소해석을 이용한 단층연 스틸코드의 평가기법 개발

Abstract

This paper deals with an evaluation method of a single-layer steel cord using the finite element analysis during the stranding process. The residual stress distribution of a drawn wire and the shape of a single-layer steel cord before the roller straightening process are investigated carefully for the accurate description of irregularities of a single-layer steel cord. Simulations of a twisting process and two roller straightening processes are performed with a simplified simulation method. From simulations, the steel cord shape and assessment items of the steel cord quality are measured before and after the roller straightening process. The simulation-based evaluation method developed can provide the specific information of the role of straightening devices to the steel cord quality. It also can be utilized for an optimum design of the stranding process for the reduction of the time and cost.