| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
50 Years of Characterizing Structural Ceramics and Glasses: Recognizing the Contributions of George Quinn
|
| Presentation Title |
Advanced Proof Testing for Structural Ceramics |
| Author(s) |
Osama Jadaan, Noel Nemeth, Eric Baker |
| On-Site Speaker (Planned) |
Osama Jadaan |
| Abstract Scope |
Proof testing is used to remove weak ceramic components from a manufactured batch in turn truncating the lower end of the strength-failure probability distribution. This presentation advances the early work done on proof test theory, which was limited to simple stress states, to include more general stress and material states. The theory introduced takes into account practical conditions often encountered in industrial applications such as multiaxial transient service and proof test thermomechanical loads, non-alignment (off-axis) loading between service and proof test stress states and changing material behavior with time, for both fast fracture and time-dependent failure conditions. This advanced proof test theory was coded into the integrated design code CARES/Life (Ceramic Analysis and Reliability Evaluation of Structures/Life), which is a postprocessor to commercially available Finite Element software. Examples will be presented. |