Nonlinear bending behavior of EMC laminates at elevated temperatures

DOI

10.2991/imst-16.2016.64How to use a DOI?

Keywords

elastic memory composite, neutral axis, half wavelength, microbuckling.

Abstract

Elastic memory composite (EMC) is shape memory polymer reinforced by continuous fibers. When environmental temperature of EMC is above the glass transition temperature of its resin (Tg) the resin is in the rubbery state and with high compliance, which makes EMC realize high packaging strain through microbuckling of the compressed fibers. In this study, the neutral axis location and fiber microbuckling half wavelength of EMC laminate are firstly introduced and shortages that exist in present literature are also perfected. Secondly, the known neutral axis location and half wavelength expressions are substituted into the total strain energy expression of packaged EMC laminate and then according to the principal of virtual work the total strain energy expression is deduced to yield the nonlinear relationship between bending moment and curvature of EMC laminate. Furthermore, the theoretical curve of nonlinear bending behavior is basically agreeable with the 4-point pure bending testing result of EMC laminate in their applicable bending range at elevated temperature.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhiyuan Xiong
AU  - Rui Wu
AU  - Ruixiang Song
AU  - Zhongxu Kang
AU  - Huijuan Zhang
AU  - Qiang Liu
PY  - 2016/11
DA  - 2016/11
TI  - Nonlinear bending behavior of EMC laminates at elevated temperatures
BT  - Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)
PB  - Atlantis Press
SP  - 427
EP  - 435
SN  - 1951-6851
UR  - https://doi.org/10.2991/imst-16.2016.64
DO  - 10.2991/imst-16.2016.64
ID  - Xiong2016/11
ER  -