Since the late 1980s and the collapse of communist, military, and race-based regimes across the world, the euphoria over democracy's triumph has given way to the practical question …
Silicon carbide fiber‐reinforced silicon carbide matrix (SiC/SiC) composite components were tested in an aircraft combustion environment using the Rich‐burn, Quick‐quench, Lean‐…
This paper addresses recent efforts at the NASA Glenn Research Center at Lewis Field relating to the set-up and assessment of electro-mechanical (E/M) impedance based structural …
The reliability of scanning laser acoustic microscopy (SLAM) for detecting surface voids in structural ceramic test specimens was statistically evaluated. Specimens of sintered silicon …
michael.friswell.com/PDF_Files/C170.pdfPDFThe dynamic behavior of a cracked flexible rotor passing through critical speed under the presence of a constant driving torque is analyzed. By incorporating the nonlinear coupling …
Ceramic matrix composites are being considered as candidate materials for high temperature aircraft engine components to replace the current high density metal alloys. Ceramic …
Background The prevalence of substance use among the foreign-born has gained increasing attention. Cumulative migration stressors – including historical trauma, violence, family …
Breech presentation complicates as many as 4% of all deliveries. External cephalic version (ECV) is a procedure that involves the external rotation of the fetus through the mother’s …
The ability of scanning laser acoustic microscopy (SLAM) to characterize artificially seeded voids in sintered silicon nitride structural ceramic specimens was investigated. Using …
Ceramic matrix composites (CMC) are engineered materials filled with manufacturing anomalies, such as voids, delamination, or fiber cracking. In this paper, a non-destructive …