Abstract
Wire-woven bulk kagome (WBK) materials are a new class of cellular metallic structures possessing desired mechanical performance and can be fabricated easily by assembling metallic wires. In previous studies, the WBK materials were shown to have high strength and weak sensitivity on imperfections under compressive loads. In this paper, we present numerical simulation results on the mechanical performance of WBK and its sensitivity on imperfections under shear loads. Two types of statistical imperfections on geometry and material property were introduced in the simulation models as likewise the previous studies. The simulation results were compared with the experimental measurement on the WBK made of stainless wire (SUS304). The WBK were shown to have a good isotropic mechanical strength under various orientations of shear loadings.
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This paper was recommended for publication in revised form by Associate Editor Maenghyo Cho
Sangil Hyun received his B.S. and M.S. degrees in physics from Seoul National University, Korea, in 1986 and 1989. He received his Ph.D. degree in solid state theory from Michigan State Uni-versity in 1998. Dr. Hyun is currently a senior researcher at the simulation center in Korea Inst. of Ceramic Eng. & Tech. (KICET). He is mainly working on computational studies on multifunctional cha-racteristics of fine ceramics, metals, and composites. He also develops a multiscale modeling on nanotribology and nanofluidics.
Ji-Eun Choi received her B.S. and M.S degrees in Mechanical Engineering from Chosun University, Korea, in 1999 and 2001. Ms. Choi is currently an associate research engineer at the automobile research center in Chonnam National University. She is mainly working on the theoretical and numerical analyses on truss PCMs (Periodic Cellular Metals).
Ki-Ju Kang received his B.S. degree in Mechanical Engineering from Chonnam National University, Korea, in 1981. He then received his M.S. and Ph.D. degrees from Korea Advanced Institute of Science and Technology in 1983 and 1988, respectively. Dr. Kang is currently a Professor at the School of Mechanical Systems Engineering at Chonnam National University in Gwangju, Korea. Prof. Kang’s lab is designated as a national research Lab. His research interests include the optimal designs and manufacturing technologies of various types of porous cellular metals and mechanical behaviors of a thermally grown oxide at high temperature.
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Hyun, S., Choi, JE. & Kang, KJ. Effect of imperfections on the mechanical behavior of wire-woven bulk kagome truss PCMs under shear loading. J Mech Sci Technol 23, 1270–1277 (2009). https://doi.org/10.1007/s12206-008-1202-2
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DOI: https://doi.org/10.1007/s12206-008-1202-2