NDLI: Cares/life software for designing more reliable ceramic parts

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Cares/life software for designing more reliable ceramic parts

Content Provider	NASA Technical Reports Server (NTRS)
Author	Baker, Eric H. Nemeth, Noel N. Powers, Lynn M.
Copyright Year	1997
Description	Products made from advanced ceramics show great promise for revolutionizing aerospace and terrestrial propulsion, and power generation. However, ceramic components are difficult to design because brittle materials in general have widely varying strength values. The CAPES/Life software eases this task by providing a tool to optimize the design and manufacture of brittle material components using probabilistic reliability analysis techniques. Probabilistic component design involves predicting the probability of failure for a thermomechanically loaded component from specimen rupture data. Typically, these experiments are performed using many simple geometry flexural or tensile test specimens. A static, dynamic, or cyclic load is applied to each specimen until fracture. Statistical strength and SCG (fatigue) parameters are then determined from these data. Using these parameters and the results obtained from a finite element analysis, the time-dependent reliability for a complex component geometry and loading is then predicted. Appropriate design changes are made until an acceptable probability of failure has been reached.
File Size	853945
Page Count	13
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19970024972
Archival Resource Key	ark:/13960/t0ms8nr02
Language	English
Publisher Date	1997-04-01
Access Restriction	Open
Subject Keyword	Computer Programming And Software Finite Element Method Time Dependence Probability Theory Cyclic Loads Tensile Tests Reliability Analysis Dynamic Loads Brittle Materials Fracturing Static Loads Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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