Monitoring Three-point Bending Behavior of Carbon/Carbon Composites Using Electrical Resistance Change Methods

Damage behavior of unidirectional carbon fiberreinforced carbon(C/C)composites underthree-point bending load by electrical resistancechange(ERC)methods was presented.Staticbending tests and ERC tests were exam-ined simultaneously to obtain the relationship be-tween damage types and electrical resistance chang-es.In order to identify the occurring time and

Damage behavior of unidirectional carbon fiber reinforced carbon （C/C） composites under three- point bending load by electrical resistance change （ERC） methods was presented. Staticbending tests and ERC tests were exam- ined simultaneously to obtain the relationship be- tween damage types and electrical resistance changes. In order to identify the occurring time and types of damages, specimens with defects produced in different loading time were observed as well.