Analysis of Composite Sabot Structure using Equivalent Properties

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Journal of the Korea Institute of Military Science and Technology 2003;6(4):63-72.

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등가물성을 이용한 복합재 이탈피의 구조해석

이성호, 이강우, 우경식, 박관진

¹국방과학연구소
²프리즘㈜
³충북대학교 구조시스템공학과

Abstract

This paper deals with the analysis of composite sabot of APFSDS projectile. Unlike conventional composite parts, the sabot is composed of thick-sectioned lamination, and thus requires 3-dimensional properties in the analysis. In this study, a model was formulated to calculate the equivalent composites properties. The equivalent properties were then used in the finite element analysis and the results were compared with those by the full 3-dimensional analysis with ply-by-ply modeling. The results generally agreed with each other in the bound of 20% error, indicating that the formulated model produced the equivalent properties with reasonable accuracy. It was thought to be an efficient approach to use the model in global analysis and then perform the full 3-dimensional analysis in regions of interest for detailed evaluation in designing the composite sabot structure.

Key Words: Comopsite Sabot, APFSDS Projectile, Finite Element Analysis, Equivalent Property