Application of Efficient Methods for Inspection Sensitivity

Abstract

Nondestructive evaluation (NDE) inspections play a vital role in the reliability of structural components. NDE inspections are simulated using a Probability-of-Detection curve (POD) that is obtained experimentally. In this paper a methodology using the expectation operator was developed to obtain the sensitivity of the Probability-of-Failure (POF) with respect to parameters of the POD via Monte Carlo Sampling. The methodology scales to any number of inspections and can be integrated with existing Monte Carlo sampling methods. Sensitivities of the probability-of-failure with respect to the parameters of a POD curve were calculated for several numerical examples then compared against analytical and numerical finite difference solutions.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 2009
Accession Number
ADA501964

Entities

People

  • Harry Millwater Jr.
  • Jose M. Garza

Organizations

  • University of Texas at San Antonio

Tags

DTIC Thesaurus Topics

  • Aeronautics
  • Air Force
  • Air Force Facilities
  • Air Force Research Laboratories
  • Astronautics
  • Detection
  • Engineering
  • Inspection
  • Mechanical Engineering
  • Probability
  • Probability Distributions
  • Random Variables
  • Reliability
  • Sampling
  • Sensitivity
  • Structural Components
  • Test And Evaluation

Readers

  • Statistical inference.
  • Structural Health Monitoring of Composite Structures.