Relationship of NDE to fitness-for-purpose

Conference · Fri Jan 01 00:00:00 EST 1982

OSTI ID:6936475

Maxfield, B W

Qualitative nondestructive evaluation (QNDE) is required for evaluating materials, welded joints, machine parts and structures for fitness for purpose (FfP); that is FpP requires materials testing methods which are able to detect small defects and which can determine the location, orientation, size and shape of a defect so that the influence of the local stress level on the defect growth rate under either static or dynamic loading conditions can be evaluated. The following NDE methods and their applicability to FfP are compared: liquid penetrant inspection; magnetic testing; optical interferometric methods; eddy current testing, radiographic methods and ultrasonic testing. It is concluded that ultrasonic methods are currently the most advanced and promising providing QNDE or fracture mechanics information, and that within two to four years simple, practical economical field NDE procedures will be available which will provide the information needed to apply FfP criteria for judging the acceptability of welds. (LCL)

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6936475
• Report Number(s): UCRL-87639; CONF-8205106-1; ON: DE82016841
• Resource Relation: Conference: American Welding Society conference, Atlanta, GA, USA, 18 May 1982; Other Information: Portions of document are illegible
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
EDDY CURRENT TESTING
TECHNOLOGY ASSESSMENT
LIQUID PENETRANT INSPECTION
MACHINE PARTS
NONDESTRUCTIVE TESTING
MAGNETIC TESTING
ULTRASONIC TESTING
WELDED JOINTS
COMPARATIVE EVALUATIONS
CRACK PROPAGATION
DEFECTS
FRACTURE MECHANICS
FRACTURE PROPERTIES
ACOUSTIC TESTING
ELECTROMAGNETIC TESTING
JOINTS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICS
TESTING
420500* - Engineering- Materials Testing