|Table of Contents|

Influence of missing cell on in-plane dynamic behavior of honeycomb(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2019年05期
Page:
541-547
Research Field:
Publishing date:

Info

Title:
Influence of missing cell on in-plane dynamic behavior of honeycomb
Author(s):
Li ZhenWang YajinLiu JingxingWang Liangmo
School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China
Keywords:
missing cells honeycomb defects in-plane dynamic behavior energy absorption capacity impact resistance capacity
PACS:
TH123; O347
DOI:
10.14177/j.cnki.32-1397n.2019.43.05.001
Abstract:
In order to figure out the influences of missing cells on the in-plane dynamic behavior of the auxetic honeycomb,a finite element model is built and validated. In-plane dynamic crushing analysis under various conditions of defective size and shape are conducted. The sensitive analysis is performed by discussing the deformation mode,normalized plastic energy dissipation and impact resistance capacity of the defective honeycombs. The results show that the honeycombs are sensitive to both the defective size and shape at the low compression speed(2 m/s). The influence of weakens as the crushing velocity increases. In addition,the impact resistance capacity of honeycomb is also influenced by defects. This research provides useful references for the honeycomb in the field of engineering design.

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Last Update: 2019-11-30