VIMP Curing Process and Health Monitoring of Vinyl Ester Composites Based on Fiber Bragg Grating Sensors

Sun, Jiu Xiao; Ji, Yun Dong; Zhang, Wei; Wang, Ji Hui; Tong, Xin

doi:10.4028/www.scientific.net/msf.675-677.1163

Cited by 2 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thus measurement signals may not be influenced by light source fluctuation and detectors aging [10,11]. Many experts at home and abroad applied FBG sensors in monitoring temperature and strain of composite materials in curing process [12][13][14][15]. But there are few reports on application of fiber grating in epoxy resin curing monitoring.…”

Section: Introductionmentioning

confidence: 99%

Cure monitoring of epoxy resin via use of FBG

Wang¹,

Li²,

Shang³

et al. 2013

Ifost

View full text Add to dashboard Cite

In order to monitor curing process of epoxy resin in real time, the system for cure monitoring is established based on Fiber Bragg Grating. First, a bare FBG, a FBG packaged with quartz capillary and an accurate resistance thermometer are closely stacked into a special mould. Then the mould is filled with mixture of epoxy resin and curing agent. Finally they are heated and cured together in the temperature-controlled cabinet. The changes of temperature inside epoxy resin are detected by resistance thermometer. Meanwhile, the reflection wavelengths of two Fiber Bragg Gratings are measured by spectrum analyzer. Experimental results indicate that the temperature evolution monitored by FBG packaged with quartz capillary is the same as measurement results of resistance thermometer. During curing process, inner strain changes of epoxy resin can be taken in by the variation of wavelength difference of two FBGs. At the beginning of polymerization reaction, the strain inside epoxy resin quickly increases, and then gradually trends to constant value. When the curing process ends, the inner strain is -945 �E. When the temperature drops down to room temperature, it is -2953 �E. The temperature and shrinkage strain monitor of epoxy resin has been implemented via using two FBGs. It is a new approach to monitor curing process of polymer materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Cure monitoring of epoxy resin via use of FBG

Wang¹,

Li²,

Shang³

et al. 2013

Ifost

View full text Add to dashboard Cite

show abstract

Cure monitoring of epoxy resin via use of FBG

Wang¹,

Li²,

Shang³

et al. 2012

2012 7th International Forum on Strategic Technology (IFOST)

View full text Add to dashboard Cite

In order to monitor curing process of epoxy resin, the special system was established based on Fiber Bragg Grating (FBG). A bare FBG, a FBG packaged with quartz capillary and an accurate resistance thermometer were immersed into mixture of epoxy resin and curing agent, and were used to monitoring the whole curing process. The changes of temperature inside epoxy resin were detected by resistance thermometer. Meanwhile, the reflection wavelengths of two Fiber Bragg Gratings were measured by spectrum analyzer. Experimental results indicate that the temperature evolution monitored by FBG packaged into quartz capillary is the same as measurement results of resistance thermometer. During curing process, inner strain changes of epoxy resin can be taken in by the variation of wavelength difference of two FBGs. At the beginning of polymerization reaction, the strain inside epoxy resin quickly increases, and then gradually trends to constant value. The temperature and shrinkage strain monitor of epoxy resin has been implemented via using FBG. It is a new approach to monitor curing process of polymer materials.

show abstract

VIMP Curing Process and Health Monitoring of Vinyl Ester Composites Based on Fiber Bragg Grating Sensors

Cited by 2 publications

References 6 publications

Cure monitoring of epoxy resin via use of FBG

Cure monitoring of epoxy resin via use of FBG

Cure monitoring of epoxy resin via use of FBG

Contact Info

Product

Resources

About