Smart multi-layer composites
A smart multi-layer composite is disclosed. The smart multi-layer composite includes a plurality of layers stacked in sequence; and a graphene layer interposed between the plurality of layers.
1. A method of diagnosing internal damage of a target object containing a smart multi-layer composite comprising: a plurality of layers stacked in sequence; and a graphene layer interposed between the plurality of layers, the method comprising:
monitoring a change in resistance of a smart multi-layer composite contained in the target object; and
if the change in resistance of the smart multi-layer composite is detected, recognizing internal damage of the target object and identifying a position where the change in resistance occurs,
after the recognizing internal damage of the target object and the identifying a position where the change in resistance occurs,
detecting a deformation rate of the position by using the change in resistance.
2. A method of diagnosing internal damage of a target object containing a smart multi-layer composite comprising: a plurality of layers stacked in sequence; and a graphene layer interposed between the plurality of layers, the method comprising:
monitoring a change in resistance of a smart multi-layer composite contained in the target object; and
if the change in resistance of the smart multi-layer composite is detected, recognizing internal damage of the target object and identifying a position where the change in resistance occurs,
wherein in the monitoring a change in resistance of the smart multi-layer composite,
the change in resistance is caused by a change in resistance of the graphene layer occurring in response to a stress applied.