Analysis of the resin transfer molding process using in-mold dielectric sensors

Czaplicki, Michael; Whalen, Thomas J.; Day, David R.

doi:10.1016/0040-6031(93)85114-o

Cited by 6 publications

(2 citation statements)

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“…W OVEN COMPOSITES, WHOSE design can include either through thickness threedimensional weaving or two-dimensional laminar weaving, are increasingly used in military applications, commercial aerospace vehicles, automotive structures, infrastructural systems and marine systems due to their enhanced ability to suppress interlaminar shear and delamination for loading regimes spanning quasi-static to high strain-rates [1][2][3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Global-local Assessment of Low-velocity Impact Damage in Woven Composites

Pearson

Zikry

Prabhugoud

et al. 2007

Journal of Composite Materials

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Global measurements from low-velocity impact experiments and local strain measurements from embedded and surface mounted optical fiber Bragg grating (FBG) sensors were used to obtain failure maps for two- and three dimensional woven composites. These maps delineated five distinct regimes spanning behavior from initial impact to complete penetration. Sensor and host damage were separated by signal intensity and the evolution of Bragg peaks due to repeated impact loads. The results indicate that a local-global framework can be used to monitor damage progression in different host materials, and hence it can be potentially used to mitigate damage.

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Section: Introductionmentioning

confidence: 99%

Global-local Assessment of Low-velocity Impact Damage in Woven Composites

Pearson

Zikry

Prabhugoud

et al. 2007

Journal of Composite Materials

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“…• Dielectric devices [21][22][23][24][25][26][27][28][29][30][31]32] and in some cases developed for RTM process [21,25,30,32]; • Ultrasonic methods [33][34][35][36][37][38][39][40][41]42], in RTM process [42];…”

Section: A Brief State Of Art: Smart Composites With Embedded Sensorsmentioning

confidence: 99%

Carbon fibres reinforced composites. Electrical impedance analysis: a gateway to smartness

Marguerès

Olivier

Mounkaila

et al. 2020

International Journal of Smart and Nano Materials

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For more than 7 years, our research work is focussed upon the electrical behavior of carbon fiber reinforced composites. Effectively carbon/polymeric matrix laminates can be considered as an electrically conductive network (i.e. carbon fibers) embedded in an insulating medium (i.e. the polymeric matrix). Consequently, from an electrical point of view laminated composites have been modelled owing to combinations of electrical resistances (i.e. fibers themselves and the contact points between the fibers) and capacitances (i.e. polymeric matrix). During their manufacturing, composite material such as thermoset matrix composites for instance, undergo various changes in their physical (including electrical and mechanical) properties and in their geometrical characteristics. In fact, in the case of manufacturing processes such as oven curing (vacuum bag), autoclave curing or heating plate press, beside the chemo-rheological changes, the laminated parts are the place of a compaction phenomenon inducing changes in fiber volume fraction and thicknesses. The idea developed in this paper is that since the carbon/ polymeric matrix laminate can be considered as an electrical network, it can then be view and used as a sensor for following the material state during the manufacturing process enabling thus defects to be detected and this without any additional sensing material or device.

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Carbon/Polymeric Composites Autoclave Cure Monitoring with Optical Fiber Bragg Grating ( FBG ) Sensors

Olivier

Mulle

Paris

et al. 2012

Wiley Encyclopedia of Composites

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The manufacturing of a thermoset matrix composite part is quite complex. The curing of this kind of composites is commonly controlled by curing duration, temperature, pressure, and vacuum. On one hand, in order to produce fully cured and compacted and high quality parts, a reasoned and optimum choice must be done. On the other hand, and all the more so as regards thermoset matrix composites, the curing parameters may induce some irreversible effects on several parameters of the ensuing laminated part. For all these reasons, since numerous years, cure monitoring has been paid of a great attention. In this contribution, the reader will be first provided with a condensed survey (including more than 100 references) of the main methods developed from more than 40 years to monitor the changes occurring in a composite material during its curing. In the broad field of real‐time cure monitoring, a focus on optical fibers Bragg grating (FBG) and their use for cure monitoring purposes will be made in this article. Some original results are given after a brief introduction about FBG. The selection of a sensing technique depends on the desired results. Nevertheless, the advantages and the drawback of each technique will not be discussed here. The reader will easily find detailed comments in the numerous references proposed at the end of this article.

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Analysis of the resin transfer molding process using in-mold dielectric sensors

Cited by 6 publications

References 0 publications

Global-local Assessment of Low-velocity Impact Damage in Woven Composites

Global-local Assessment of Low-velocity Impact Damage in Woven Composites

Carbon fibres reinforced composites. Electrical impedance analysis: a gateway to smartness

Carbon/Polymeric Composites Autoclave Cure Monitoring with Optical Fiber Bragg Grating ( FBG ) Sensors

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