Monitoring interlaminar crack growth in ceramic matrix composites using electrical resistance. (15th March 2015)

• Record Type: Journal Article
• Authors: Mansour, Rabih; Maillet, Emmanuel; Morscher, Gregory N.
• Is Part Of: Scripta materialia. Volume 98(2015)
• Page Start: 9
• Page End: 12
• Publication Date: 2015-03-15
• Subjects: Ceramic matrix composites (CMC) -- Electrical resistivity -- Fracture -- Acoustic emission; Materials -- Periodicals; Metallurgy -- Periodicals; Metalen; Legeringen; Materiaalkunde; Metals, metalworking and machinery industries; Metals; Electronic journals; 620.11
• DOI: 10.1016/j.scriptamat.2014.10.034
• Languages: English
• ISSNs: 1359-6462

Abstract

Abstract : This letter introduces a method that uses electrical resistance to monitor crack growth during interlaminar fracture testing of woven SiC fiber-reinforced SiC matrix composites at room temperature without visual observation. The estimated crack length is in excellent agreement with the measured length after subtracting a constant value of resistance related to the initial stage of crack development. This non-visual monitoring method holds great promise for in situ measurement of crack growth during high-temperature testing of ceramic matrix composites.