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ICASE Report No . 89-44 181964 ICASE BOUNDARY ESTIMATION PROBLEMS ARISING IN THERMAL TOMOGRAPHY
| Content Provider | Semantic Scholar |
|---|---|
| Author | Banks Fumio Kojima Winfree, Page |
| Abstract | Problems on the identification of two dimensional spatial domains arising in the detection and characterization of structural flaws in materials are considered. For a thermal diffusion system with external boundary input, observations of the temperature on the surface are used in a output least square approach. Parameter estimation techniques based on the "method of mappings" are discussed and approximation schemes are developed based on a finite element Galerkin approach. Theoretical convergence results for computational techniques are given and the results are applied to experimental data for the identification of flaws in thermal testing of materials. *This research was carried out in part while the first and second authors were in residence at the Institute for Computer Applications in Science and Engineering (ICASE), NASA Langley Research Center, Hampton, VA 23665, which is operated under NASA Contract No. NAS1-18605. Additional support for the first author was also provided by the National Science Foundation under NSF Grant No. DMS-8818530 and by the Air Force Office of Scientific Research under contract F49620-86-C-0111. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19900008877.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Report |
