Accept-Reject Decisions and Probabilistic Failure Prediction

dc.contributor.author Richardson, John
dc.contributor.author Fertig, K.
dc.contributor.author Evans, A.
dc.date 2018-02-13T18:25:19.000
dc.date.accessioned 2020-06-30T01:29:06Z
dc.date.available 2020-06-30T01:29:06Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 1981
dc.date.embargo 2013-12-03
dc.date.issued 1981-09-01
dc.description.abstract <p>The purpose of this paper is to discuss recent progress in the development of an NDE decision formalism applied to the case of brittle fracture in ceramics. The on-line input into the formalism is a set of non-destructive (ND) measurements and the on-line output is the probability of failure conditioned on the above measurements. The final accept-reject decision depends only upon the comparison of the above output with a threshold related to the concerns of the user. The formalism involves stochastic physical models of the ND measurement process, the failure process (assuming a given stress environment), and the a priori statistics of defects. The present formalism goes beyond that reported at the previous meeting in several respects: (a) a greater variety of possible defect types are included, (b) a correspondingly grater variety of competing failure processes are considered, and (c) a more diverse set of ND measurements are incorporated. An important general modification of the total formalism has been introduced: namely, the earlier formalism involving a single most significant defect concept has been replaced by a more realistic formalism in which all possible combinations of defects are taken into account. The model of a priori statistics of defects has been accordingly modified with the removal of the extreme value feature. We will present false-rejection false-acceptance probability curves for various sets of synthetic test data and various values of model parameters.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/cnde_yellowjackets_1981/19/
dc.identifier.articleid 1022
dc.identifier.contextkey 4871680
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath cnde_yellowjackets_1981/19
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/16155
dc.language.iso en
dc.relation.ispartofseries Interdisciplinary Program for Quantitative Flaw Definition Annual Reports
dc.source.bitstream archive/lib.dr.iastate.edu/cnde_yellowjackets_1981/19/1981_YellowJacket_022_Richardson_AcceptReject.pdf|||Fri Jan 14 21:48:51 UTC 2022
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords Nondestructive Evaluation
dc.title Accept-Reject Decisions and Probabilistic Failure Prediction
dc.type article
dc.type.genre 06_ceramic_nde
dspace.entity.type Publication
relation.isSeriesOfPublication 43920e40-d127-4f4c-9087-dc709815fe7f
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