Size effects on the in-plane mechanical behavior of hexagonal honeycombs
In-plane uniaxial compression tests were experimented on seven kinds of honeycomb specimens with different sizes (cell numbers) under the loading rate of 10 mm/min, in order to investigate the size effects on four important mechanical parameters (the curve modulus, initial collapse stress, densifica...
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doaj-cc596ab0ac6f4b5184f26d96ffff30182021-09-05T14:00:30ZengDe GruyterScience and Engineering of Composite Materials0792-12332191-03592016-05-0123330130710.1515/secm-2014-0121Size effects on the in-plane mechanical behavior of hexagonal honeycombsJin Tao0Zhou Zhiwei1Liu Zhenguo2Shu Xuefeng3Institute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaState Key Laboratory of Frozen Soil Engineering, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, ChinaInstitute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaInstitute of Applied Mechanics and Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaIn-plane uniaxial compression tests were experimented on seven kinds of honeycomb specimens with different sizes (cell numbers) under the loading rate of 10 mm/min, in order to investigate the size effects on four important mechanical parameters (the curve modulus, initial collapse stress, densification strain, and plateau stress) of the honeycomb structure. The results show that the curve modulus of honeycombs decreases with decrease in specimen size, indicating that the curve modulus in in-plane direction is sensitive to size. In addition, the initial collapse stress in x2-direction as well as energy absorption efficiency in x1-direction is slightly sensitive to the specimen size. However, the other mechanical parameters of honeycomb show significant size independence. The weak boundary cells are used to explain size effects on the in-plane mechanical behavior of honeycomb. Consequently, the minimum specimen size of hexagonal honeycomb specimens for measuring the effective in-plane mechanical properties of a bulk honeycomb is determined according to these results.https://doi.org/10.1515/secm-2014-0121hexagonal honeycombsin-plane uniaxial compressionsize effects |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jin Tao Zhou Zhiwei Liu Zhenguo Shu Xuefeng |
spellingShingle |
Jin Tao Zhou Zhiwei Liu Zhenguo Shu Xuefeng Size effects on the in-plane mechanical behavior of hexagonal honeycombs Science and Engineering of Composite Materials hexagonal honeycombs in-plane uniaxial compression size effects |
author_facet |
Jin Tao Zhou Zhiwei Liu Zhenguo Shu Xuefeng |
author_sort |
Jin Tao |
title |
Size effects on the in-plane mechanical behavior of hexagonal honeycombs |
title_short |
Size effects on the in-plane mechanical behavior of hexagonal honeycombs |
title_full |
Size effects on the in-plane mechanical behavior of hexagonal honeycombs |
title_fullStr |
Size effects on the in-plane mechanical behavior of hexagonal honeycombs |
title_full_unstemmed |
Size effects on the in-plane mechanical behavior of hexagonal honeycombs |
title_sort |
size effects on the in-plane mechanical behavior of hexagonal honeycombs |
publisher |
De Gruyter |
series |
Science and Engineering of Composite Materials |
issn |
0792-1233 2191-0359 |
publishDate |
2016-05-01 |
description |
In-plane uniaxial compression tests were experimented on seven kinds of honeycomb specimens with different sizes (cell numbers) under the loading rate of 10 mm/min, in order to investigate the size effects on four important mechanical parameters (the curve modulus, initial collapse stress, densification strain, and plateau stress) of the honeycomb structure. The results show that the curve modulus of honeycombs decreases with decrease in specimen size, indicating that the curve modulus in in-plane direction is sensitive to size. In addition, the initial collapse stress in x2-direction as well as energy absorption efficiency in x1-direction is slightly sensitive to the specimen size. However, the other mechanical parameters of honeycomb show significant size independence. The weak boundary cells are used to explain size effects on the in-plane mechanical behavior of honeycomb. Consequently, the minimum specimen size of hexagonal honeycomb specimens for measuring the effective in-plane mechanical properties of a bulk honeycomb is determined according to these results. |
topic |
hexagonal honeycombs in-plane uniaxial compression size effects |
url |
https://doi.org/10.1515/secm-2014-0121 |
work_keys_str_mv |
AT jintao sizeeffectsontheinplanemechanicalbehaviorofhexagonalhoneycombs AT zhouzhiwei sizeeffectsontheinplanemechanicalbehaviorofhexagonalhoneycombs AT liuzhenguo sizeeffectsontheinplanemechanicalbehaviorofhexagonalhoneycombs AT shuxuefeng sizeeffectsontheinplanemechanicalbehaviorofhexagonalhoneycombs |
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1717811805850435584 |