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한상민(Sahng M Han),이충일(Chung I Lee),정찬진(Chan J. Chung),송영기(Young K Song),홍진표(Jin P. Hong),천유식(You S Chun) 한국정보과학회 1987 한국정보과학회 학술발표논문집 Vol.14 No.2
시스팀을 효율적으로 개발하기 위해 많은 방법론과 도구들이 개발되어 왔다. 그러나 각 방법론 및 도구들이 모든 분야의 정보 처리 시스팀 개발에 적용될 수는 없었으며 응용 분야에 따라 적합한 방법론 및 도구들을 선택해야 했다. 본 고는 이러한 단점을 보완 하기 위해서, 방법론 개발을 지원하는 메타 시스팀의 구축을 위한 구조(configuration)를 제시하고 각 구성 요소의 기능과 설계 기법, 그리고 메타 시스팀의 구축 방안에 관하여 기술한다.
한승철(Seung Cheol Han),이민근(M.G.Lee),윤종원(J.W.Yoon),한상민(S.M.Han),서용석(Y.S.Suh),강기주(Ki-Ju Kang) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
A periodic cellular metal (PCM) has both load supporting performance and thermal management properties. A few years ago, a new technique for fabricating PCM, known as Wire-woven Bulk Kagome (WBK), was introduced. The WBK has been proved that it has high strength-per-weight. In this work, the buckling responses of two types of WBKcored sandwich panels subjected to in-plane compression were investigated. For both types, the peak loads were governed by macro plastic buckling. Low shear modulus and strength of the WBK core substantially influenced the buckling behaviors of the sandwich panels before and after their peaks. Classical theories, experimental and numerical results were presented. The effects of several factors were analyzed.
샌드위치 판재의 굽힘 거동에 미치는 불연속 WBK 심재의 영향
김하라(H.R. Kim),이민근(M.G. Lee),윤종원(J.W. Yoon),한상민(S.M. Han),서용석(Y.S. Suh),강기주(K.J. Kang) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The bending properties of sandwich panels with discontinuous WBK (Wire-woven Bulk Kagome) cores were investigated. Analytic solutions were derived, and the experimental and numerical results were presented. The analytic solutions provided good estimations of the failure mode, peak load, and bending stiffness in comparison with the experimental results. The strength and stiffness of sandwich panels with discontinuous WBK cores under bending load often substantially deteriorated depending on the gap width between the cores and on the detailed geometry near the gap. The analytic solutions successfully explained how the deterioration of the bending strength or stiffness could be minimized, when two separate sandwich panels or cores are to be joined.
Cell size와 방향에 따른 WBK 심재의 압축거동
이정우(Jeong Woo Lee),이민근(Min Geun Lee),강기주(Ki-Ju Kang),윤종원(J.W.Yoon),한상민(S.M.Han),서용석(Y.S.Suh) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
This paper studies the compressive properties of mild steel WBK (Wire-woven Bulk Kagome) cores. To determine stiffness, the average displacements of WBK were measured using the two clip gages. The effects of orientation and cell size on the equivalent strength and equivalent Young’s modulus of WBK for given external dimensions of the specimens are evaluated. The equivalent peak strengths of the WBK cores in y and x-orientations were about 3/4 and 1/2 of that in z-orientation, respectively, and the equivalent Young’s moduli in y and x-orientations were about 5/6 of that in z-orientation.