Determination of sample size in service inspection
- Marquette Univ., Milwaukee, WI (United States). Dept. of Mechanical and Industrial Engineering
When performing inservice inspection on a large volume of identical components, it becomes an almost impossible task to inspect all those in which defects may exist, even if their failure probabilities are known. As a result, an appropriate sample size needs to be determined when setting up an inspection program. In this paper, a probabilistic analysis method is employed to solve this problem. It is assumed that the characteristic data of components has a certain distribution which can be taken as known when the mean and standard deviations of serviceable and defective sets of components are estimated. The sample size can then be determined within an acceptable assigned error range. In this way, both false rejection and acceptance can be avoided with a high degree of confidence.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 442844
- Journal Information:
- Journal of Pressure Vessel Technology, Journal Name: Journal of Pressure Vessel Technology Journal Issue: 1 Vol. 119; ISSN JPVTAS; ISSN 0094-9930
- Country of Publication:
- United States
- Language:
- English
Similar Records
ULTRASONIC INSPECTION OF SUBMARINE STEEL WELDMENTS
Determination and optimization of spatial samples for distributed measurements.