کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6703836 | 1428515 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
In-plane crashworthiness of bio-inspired hierarchical honeycombs
ترجمه فارسی عنوان
انفجار در هواپیما از سلول های سلول سلولی الهام گرفته از محیط زیست
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کلمات کلیدی
ساختار سلسله مراتبی، شانه عسل، ضربه، جذب انرژی، خرابی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Biological tissues like bone, wood, and sponge possess hierarchical cellular topologies, which are lightweight and feature an excellent energy absorption capability. Here we present a system of bio-inspired hierarchical honeycomb structures based on hexagonal, Kagome, and triangular tessellations. The hierarchical designs and a reference regular honeycomb configuration are subjected to simulated in-plane impact using the nonlinear finite element code LS-DYNA. The numerical simulation results show that the triangular hierarchical honeycomb provides the best performance compared to the other two hierarchical honeycombs, and features more than twice the energy absorbed by the regular honeycomb under similar loading conditions. We also propose a parametric study correlating the microstructure parameters (hierarchical length ratio r and the number of sub cells N) to the energy absorption capacity of these hierarchical honeycombs. The triangular hierarchical honeycomb with Nâ¯=â¯2 and râ¯=â¯1/8 shows the highest energy absorption capacity among all the investigated cases, and this configuration could be employed as a benchmark for the design of future safety protective systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 192, 15 May 2018, Pages 516-527
Journal: Composite Structures - Volume 192, 15 May 2018, Pages 516-527
نویسندگان
Hanfeng Yin, Xiaofei Huang, Fabrizio Scarpa, Guilin Wen, Yanyu Chen, Chao Zhang,