Ultrasonic extensometry for determining bolt preload in heavy industry - from petrochemical to reactors

Journal Article · Thu Oct 01 00:00:00 EDT 1981 · SAMPE Q.; (United States)

OSTI ID:5894733

Erdman, D C

Use of ultrasonic extensometers has found wide application for bolt preload determination in airborne and aerospace applications where elongation measurement accuracy is often required to .0001 in. Experience has now been gained in heavy industry with fasteners up to 12 feet long, often on studs and bolts with relatively rough head surfaces. Here, accuracy may be reduced to .001 inch, a figure far better than available from torque wrenches. This paper describes some of these heavy industry applications.

• Research Organization: Raymond Engineering, Inc., Middletown, CT
• OSTI ID: 5894733
• Journal Information: SAMPE Q.; (United States), Vol. 13:1
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
22 GENERAL STUDIES OF NUCLEAR REACTORS
02 PETROLEUM
FASTENERS
ULTRASONIC TESTING
HEAT EXCHANGERS
OFFSHORE PLATFORMS
PETROCHEMICAL PLANTS
PRESSURE VESSELS
EXTENSOMETERS
REACTORS
STRESSES
ACOUSTIC TESTING
CHEMICAL PLANTS
CONTAINERS
INDUSTRIAL PLANTS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
TESTING
420500* - Engineering- Materials Testing
220200 - Nuclear Reactor Technology- Components & Accessories
020400 - Petroleum- Processing