This test method covers the determination of flexural strength including stress-strain response under monotonic loading of continuous fiber-reinforced advanced ceramic tubes at ambient temperature. This test method addresses tubular test specimen geometries, test specimen/grip fabrication methods, testing modes (force, displacement, or strain-control), testing rates (force rate, stress rate, displacement rate, or strain rate), and data collection and reporting procedures. Note that flexural strength as used in this test method refers to the flexural strength is positioned to obtained under monotonic uniaxial loading where monotonic refers to a continuous nonstop test rate with no reversals from test initiation to final fracture.
Keywordsceramic matrix composite; CMC continuous fiber composite; flexural test; tubes
Ceramic matrix composite (CMC) tubes are proposed for next generation of nuclear power reactors. Standards for mechanical behavior of CMC tubes in uniaxial tension and internal pressurization have been approved. New standards are required for flexure and compression.
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top
Ballot Item Approved as C1899-2021 and Pending Publication