An experimental technique to characterize interply void formation in unidirectional prepregs
An experimental technique to characterize interply void formation in unidirectional prepregs
复制标题
表征单向预浸料层间空隙形成的实验技术
DOI:
10.1177/0021998316650273
复制
发表时间:
2016
影响因子:
2.9
通讯作者:
Helmus R
中科院分区:
文献类型:
--
作者:
Helmus R
Out-of-autoclave prepreg processing requires evacuation of volatiles in the early stages of processing to achieve an acceptable final void content. In this study, single prepreg plies were laid-up onto a glass tool to simulate a ply–ply interface, to gain an understanding of initial air entrapment and eventual removal mechanisms. The contact was recorded during processing with various edge breathing configurations to identify the relationship between evacuation pathways and contact evolution. The existence of preferential flow channels along the fibre direction of the material was demonstrated by characterizing the prepreg surface. Gas evacuation in those channels prevented contact during an extended ambient temperature vacuum hold. The contact between the prepreg and glass tool equilibrated around 80% during the ambient vacuum hold, and reached full contact at elevated temperature after a brief loss in contact due to moisture vaporization, when the resin pressure decreased to below the water vapour pressure.
登录
查看更多内容
DOI:
10.1179/2055035914y.0000000005
发表时间:
2015
期刊:
Advanced Manufacturing: Polymer & Composites Science
影响因子:
--
作者:
L. Bloom;M. Napper;C. Ward;K. Potter
通讯作者:
K. Potter
DOI:
10.1016/j.compositesa.2010.11.014
发表时间:
2011
影响因子:
8.7
作者:
D. Lukaszewicz;K. Potter
通讯作者:
K. Potter
DOI:
10.1016/j.compositesa.2015.03.021
发表时间:
2015-10-01
影响因子:
8.7
作者:
Helmus, R.;Hinterhoelzl, R.;Hubert, P.
通讯作者:
Hubert, P.
DOI:
10.1016/j.compositesa.2015.04.009
发表时间:
2015
影响因子:
8.7
作者:
Lee Hamill;T. Centea;S. Nutt
通讯作者:
S. Nutt
影响因子:
2.9
作者:
R. Helmus;T. Centea;P. Hubert;R. Hinterhölzl
通讯作者:
R. Hinterhölzl