The Controlled Behaviour of Composite Material Model for Control

Collaine, Anne; Freyburger, Jean-Marie; L’Hostis, Gildas; Laurent, Fabrice; Durand, Bernard

doi:10.1111/j.1747-1567.2008.00471.x

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…By modifying the power P e , it is possible to decrease the response time of the CBCM (Figure 10). For example, to reach a deflection of 15.60 mm it is possible either to use a power of 38 W ( ¼ 76E 5 Wm À3 ) and wait for the stabilization (point B) or to supply a power of 99 W ( ¼ 70E 6 Wm À3 ) up to the point A (15.60 mm) and then, thanks to a regulation device, to keep the deflection at the right level (Drobez, 2006;Collaine et al, 2007).…”

Section: Influence Of the Parametersmentioning

confidence: 99%

Thermomechanical Modelization of a New Active Material

Drobez

L’Hostis

Gautier

et al. 2009

Journal of Intelligent Material Systems and Structures

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The controlled behavior of composite material (CBCM) is a thermomechanical active composite using Joule effect and heterogeneous thermal elongation properties as an actuator within composite structures. An ‘active layer’ made of carbon yarns is used as internal source of heat. To help the design of this composite a simple model based on thermomechanical and composite homogenization considerations is presented. A three-point bending test is used to compare the calculated results to experimental results. A good accordance between the relevant data (maximum of deflection and temperature on the plate) at stabilization being observed, the model is used to study the influence of some parameters. The position of the active layer, a design parameter of great importance, is particularly studied and an optimized solution is proposed. Then, the model is used for a sensitivity analysis of some design and working parameters. Finally, the results of a FEM model are compared to the previous.

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Section: Influence Of the Parametersmentioning

confidence: 99%

Thermomechanical Modelization of a New Active Material

Drobez

L’Hostis

Gautier

et al. 2009

Journal of Intelligent Material Systems and Structures

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“…It is a good solution to increase the efficiency of the system; however, two problems have to be solved. The first is to design an adapted control system; it needs an identification of the transfer function [21,22]. The second is linked to the thermal problem, which is an unsteady problem with a temperature distribution through the composite thickness.…”

Section: Stabilized Actuation Propertiesmentioning

confidence: 99%

Thermaly Active Structures for Shape Morphing Applications

L’Hostis

Buet-Gautier

Durand

2012

Smart Materials Research

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For shape morphing application, thermal activation coupling to a bimetallic strip effect can be a substitute for classical actuators, piezoelectrical or shape memory alloys. The controlled behaviour of composite material (CBCM) is a thermaly activated composite material. The thermal activation is made thanks to carbon yarns which are connected to a power supply. If the anisotropy of the structure is well organized, the desired deformation is reached when the temperature within the composite is rising. To obtain a CBCM morphing composite structure, it is necessary to design a specific structure. The aim of this work is to show that it is possible to adapt the CBCM principle in order to transform any kind of classical composite structure to an active structure. The first part of this work consists in presenting the experimental results for two examples of composite beams. The second part is about the active structure FEM modeling and the development of adapted tools for this particular design.

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