Material Damage System and Method for Determining Same

Okojie, Robert S [Inventor]

关键词: HEAT SHIELDING;    THERMAL PROTECTION;    ABLATIVE MATERIALS;    CORROSION;    TEMPERATURE SENSORS;    ELECTRICAL PROPERTIES;    SURFACE TEMPERATURE;    DAMAGE ASSESSMENT;    THICKNESS;    AEROSHELLS;    PATENTS;   

RP-ID  :  US-Patent-10,184,777, US-Patent-Appl-SN-15/683,299

学科分类：力学，机械学

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

A system and method for determining a change in a thickness and temperature of a surface of a material are disclosed herein. The system and the method are usable in a thermal protection system of a space vehicle, such as an aeroshell of a space vehicle. The system and method may incorporate micro electric sensors arranged in a ladder network and capacitor strip sensors. Corrosion or ablation causes a change in an electrical property of the sensors. An amount of or rate of the corrosion or the ablation and a temperature of the material is determined based on the change of the electrical property of the sensors.