scholarly journals Assessment of strength-limiting flaws in ceramic heat exchanger components INEL support: Fracture mechanics and nondestructive evaluation technology. Final report, June 1, 1986--May 31, 1993

1993 ◽  
Author(s):  
W.R. Lloyd ◽  
W.G. Reuter
Keyword(s):  
Heat Exchanger ◽  
Fracture Mechanics ◽  
Nondestructive Evaluation ◽  
Final Report

scholarly journals Expanded Microchannel Heat Exchanger: Nondestructive Evaluation

2018 ◽  
Vol 40 (20) ◽  
pp. 1671-1679 ◽  
Author(s):  
David C. Denkenberger ◽  
Michael J. Brandemuehl ◽  
Joshua M. Pearce ◽  
John Zhai
Keyword(s):  
Heat Exchanger ◽  
Nondestructive Evaluation ◽  
Microchannel Heat Exchanger

Correlations Between Advanced Nondestructive Evaluation Methods and Fracture Mechanics Parameters

1980 ◽  
Vol 102 (1) ◽  
pp. 50-55 ◽  
Author(s):  
C. M. Teller ◽  
J. R. Barton ◽  
G. A. Matzkanin ◽  
F. N. Kusenberger ◽  
R. E. Beissner
Keyword(s):  
Surface Wave ◽  
Fracture Mechanics ◽  
Nondestructive Evaluation ◽  
Surface Waves ◽  
Fatigue Cracks ◽  
Small Surface ◽  
Magnetic Perturbation ◽  
Hinge Model ◽  
Pulse Echo ◽  
Aisi 4340

Investigations were conducted on surface entering fatigue cracks, 0.13 to 1.27 mm (0.005 to 0.05 in.) long, in rod-type tensile specimens of HY 180 and AISI 4340 steels using surface wave ultrasonics and magnetic perturbation. Pulse-echo, surface wave ultrasonic results indicate that at 10 MHz the minimum flaw size detectable in HY 180 specimens is two to three times larger than that in AISI 4340. Also, fatigue cracks as long as 0.76 mm (0.030 in.) in HY 180 specimens could not be reliably detected with 10 MHz surface waves unless load was applied to open the crack. Extensive magnetic perturbation measurements on AISI 4340 suggest a “hinge” model for the opening of small surface entering fatigue cracks.

Nondestructive Evaluation of Offshore Structures Using Fracture Mechanics

1988 ◽  
Vol 41 (2) ◽  
pp. 36-49 ◽  
Author(s):  
S. Dharmavasan ◽  
W. D. Dover
Keyword(s):  
Fracture Mechanics ◽  
Nondestructive Evaluation ◽  
Offshore Structures ◽  
Knowledge Based Systems ◽  
Knowledge Based ◽  
Non Destructive Evaluation ◽  
Computer Aided ◽  
Cad Cam ◽  
Tools And Techniques ◽  
Non Destructive

Developments in fast modelling of processes, materials response and methodology in combination with appropriate knowledge based systems opens up the possibility of linking CAD/CAM with Computer Aided Serviceability (CAS) for use in a few industries. This paper reviews the tools and techniques which are available and being developed to implement this philosophy in non-destructive evaluation of offshore structures using fracture mechanics.

scholarly journals Assessment of strength limiting flaws in ceramic heat exchanger components. Final report, September 1984--June 1993

1993 ◽  
Author(s):  
J.R. Bower ◽  
J.D. Buttram ◽  
M.J. Edwards ◽  
L.R. Okes ◽  
T. Powers ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Final Report
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