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RISConstituent and Ply-Level Understanding of Electrical Resistance in Si-Containing SiC/SiC Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Electrical resistance (ER), also known as direct current potential drop, has been demonstrated as an enabling means to monitor damage evolution in SiC-based ceramic matrix composites (CMCs). For laminate composites, it has ...
Fatigue Characterization of SiC/SiC Ceramic Matrix Composites in Combustion Environment
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Fatigue behavior of woven melt infiltrated (MI) SiC/SiC ceramic matrix composites (CMCs) was investigated under a tension–tension fatigue condition in a combustion environment. A special experimental facility is designed ...
Cracking Behavior of Environmental Barrier Coatings/Ceramic Matrix Composite System Using Acoustic Emission and Digital Image Correlation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An investigation into the cracking behavior of advanced environmental barrier coating/woven SiC/SiC ceramic matrix composite (CMC) system under uni-axial tension testing was performed in this study. The effect of substrate ...
Quantification of Foreign Object Damage and Electrical Resistivity for Ceramic Matrix Composites and Tensile Residual Strength Prediction
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: SiCbased ceramic matrix composites (CMC) in turbine engine applications must sustain certain foreign object impacts (FOIs) that might occur in services. Experiments and nondestructive evaluation (NDE) have illustrated good ...
Monitoring Damage in Nonoxide Composites at High Temperatures Using Carbon-Containing CVD SiC Monofilament Fibers as Embedded Electrical Resistance Sensors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Electrical resistance (ER) has become a technique of interest for monitoring SiC-based ceramic composites. The typical constituents of SiC fiber-reinforced SiC matrix composites, SiC, Si, and/or C, are semiconducive to ...
Multi-Lead Direct Current Potential Drop Method for In Situ Health Monitoring of Ceramic Matrix Composites
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The method of direct current potential drop (DCPD) can be utilized as an effective and convenient approach for in situ damage detection, and as a nondestructive evaluation technique. We present the results from use of a ...
Life-Limiting Behavior of an Oxide/Oxide Ceramic Matrix Composite at Elevated Temperature Subject to Foreign Object Damage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The life-limiting behavior of an N720/alumina oxide/oxide ceramic matrix composite (CMC) was assessed in tension in air at 1200 °C for unimpacted and impacted specimens. CMC targets were subjected to ballistic impact at ...
An Investigation of the End-Notched Flexure and End-Loaded Split Tests Applied to the Mode II Interlaminar Fracture of a SiC/SiC Ceramic Matrix Composite
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Delamination is a common failure mode observed in ceramic matrix composites (CMCs) and occurs as a result of applied interlaminar tensile and shear stresses exceeding the interlaminar strength. As CMCs are further implemented ...