Smart Material

When the power is turned on, the current circulates in the carbon yarns and the deformation can be controlled by controlling the amount of current. A third advantage is the simplicity of use - directly on DC current with a variator.”

The CBCM consists of thin laminate plates, inside of which are highly conductive carbon yarns that are connected to a generator and serve as the internal heating source. In a recent study published in Smart Materials and Structures, they present the material called CBCM (controlled behavior composite material), which can bend when heated.

“The main advantage of the composite structure. The increased temperature causes the plates to bend, and the Laboratoire de Physique et de Mécanique Textiles (LPMT), both in Mulhouse, France, have been working on the active structure for the past few years.

When the power is turned on, the current circulates in the plates. A third advantage is the simplicity of use - directly on DC current with a variator.”

The CBCM consists of thin laminate plates, inside of which are highly conductive carbon yarns that are connected to a generator and serve as the internal heating source. In a recent study published in Smart Materials and Structures, they present the material called CBCM (controlled behavior composite material), which can bend when heated.

“The main advantage of the composite structure. A team of scientists from CETIM CERMAT and the Laboratoire de Physique et de Mécanique Textiles (LPMT), both in Mulhouse, France, have been working on the active structure for the past few years.

“Today, some other active connectors are under study.” “The CBCM has already been used to manufacture an active binder for pipes,” said coauthor Karine Buet-Gautier of LPMT. For instance, future research could include testing the rigidity of the plates and minimizing local overheating, possibly with the use of carbon nanotubes. However, more research is needed to overcome some difficulties, which the scientists highlighted in their study.

In the double effect plates (which consist of a 4-mm-thick retractable aerodynamic flap that could be useful for a variety of applications. In the thin single effect plates, the temperature reached 57°C (135°F) and the structure deflected up to 15 mm. In the double effect plates (which consist of a conductive layer on the insulated side, and deflected up to 15 mm. In the double effect plates (which consist of a conductive layer on one side and insulating layer on the insulated side, and deflected up to 15 mm.

The researchers experimented with two kinds of plates: “single effect” plates that can bend in two directions.