当前位置: X-MOL 学术J. Sandw. Struct. Mater. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
In-plane compression modulus and strength of Nomex honeycomb cores
Journal of Sandwich Structures & Materials ( IF 3.9 ) Pub Date : 2021-06-04 , DOI: 10.1177/10996362211021888
Mustafa O Ayanoglu 1 , Mohammad Tauhiduzzaman 1 , Leif A Carlsson 1
Affiliation  

The stress-strain response and deformation mechanism of a range of Nomex honeycomb cores tested under in-plane compression has been examined experimentally. The cores with a thin wall displayed extensive bending deformation of the cell walls inclined to the horizontal (loading is vertical) and failed in bending. The cores with thicker walls failed by a shear-type instability of the cells indicated by tilting of vertical cell wall segments. The failure strain decreased with increasing core density. The modulus and compressive strength of the core were compared to micromechanical predictions. Normalized modulus and strength values varied between the various cores. The average modulus and strength results allow backing out of the modulus and bending strength of the Nomex paper. The results were in reasonable agreement with published tensile test results and composite micromechanics.



中文翻译:

Nomex 蜂窝芯的面内压缩模量和强度

在面内压缩下测试的一系列 Nomex 蜂窝芯的应力-应变响应和变形机制已通过实验进行了检验。具有薄壁的芯体显示出向水平方向倾斜的单元壁的广泛弯曲变形(加载是垂直的)并且弯曲失败。具有较厚壁的核心因垂直细胞壁段的倾斜所指示的细胞的剪切型不稳定性而失效。失效应变随着芯密度的增加而降低。将芯的模量和抗压强度与微观力学预测进行比较。不同芯之间的归一化模量和强度值不同。平均模量和强度结果允许回退 Nomex 纸的模量和弯曲强度。

更新日期:2021-06-04
down
wechat
bug