Accession Number : ADA085945


Title :   Quantitative Nondestructive Evaluation


Descriptive Note : Technical rept.


Corporate Author : ARMY MISSILE COMMAND REDSTONE ARSENAL AL GROUND EQUIPMENT AND MISSILE STRUCTURES DIRECTORATE


Personal Author(s) : Smith, Dallas G ; Schaeffel, Jr, John A


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a085945.pdf


Report Date : Oct 1979


Pagination or Media Count : 174


Abstract : This manual has been prepared primarily for the non-NDE specialist. Its aim is to increase understanding of NDE capabilities among those involved in structural design and fracture mechanics calculations, and to provide physical details pertaining to most of the important NDE techniques. Since NDE has been so actively applied in the aerospace industry most of the application examples discussed are related to aerospace structures: however the basic ideas apply to any structure containing fracture critical components. The introduction discusses the relationship of fracture mechanics and quantitative NDE. The present practice of NDE, including military specifications, airplane inspection manuals, and inspector training are discussed next. The 'big five' methods of NDE -- liquid penetrant, magnetic particle, ultrasonic inspection, eddy current, and radiography -- are introduced as well as certain advanced inspection methods -- methods still undergoing development. The state-of-the-art, the sensitivity and reliability, of various methods along with the statistical analysis for determining flaw detection probability and confidence levels is presented. Excerpts from two actual airplane inspection manuals are included in the appendix to illustrate the degree to which instructions to inspectors are detailed and specified.


Descriptors :   *COMPOSITE MATERIALS , *FRACTURE(MECHANICS) , *NONDESTRUCTIVE TESTING , *QUANTITATIVE ANALYSIS , *RADIOGRAPHY , AEROSPACE SYSTEMS , DEFECTS(MATERIALS) , EXPERIMENTAL DESIGN , HANDBOOKS , INSPECTION , RELIABILITY , SPECIFICATIONS , STRESS ANALYSIS , STRUCTURAL ANALYSIS , STRUCTURAL ENGINEERING , TEST AND EVALUATION , TRAINING , ULTRASONIC TESTS


Subject Categories : Laminates and Composite Materials


Distribution Statement : APPROVED FOR PUBLIC RELEASE