4. Overstress Indicator for Ultra-Light and Light Airplanes
The practice of the fuses and mechanical safeguards application in the engineering structures and mechanisms for prevention of over regular regimes. Different types of safeguard devices are successfully used in the different fields of technics to prevent failure of the machines, equipment, and systems.
Design of proposed Overstress Indicator resembles the described above fatigue sensor. Whilst the fatigue indicator reacts to repeating loads by the evolution of the sensor’s surface state, the overstress indicator reacts excessive strain by its complete failure. Similar to the fatigue sensor, the sensitivity of the indicator depends on the geometry: necked working section has higher strain than any others indicator’s section.
Transmitting overstress indicator’s signal into the cabin doesn’t require very much sophisticated arrangement. The onboard system of relays can be used to supply information regarding the state of the indicator.