Development of Nondestructive Testing Techniques for Detecting Stress in Ferromagnetic Materials

1970 ◽  
Author(s):  
C. G. Gardner ◽  
G. A. Matzkanin ◽  
D. L. Davidson
Keyword(s):  
Nondestructive Testing ◽  
Ferromagnetic Materials ◽  
Testing Techniques

scholarly journals A note on NDT Technology for Detection of Defects in Oil and Gas Pipes

2015 ◽  
Vol 12 (2) ◽  
Keyword(s):  
Nondestructive Testing ◽  
Oil And Gas ◽  
State Of The Art ◽  
The State ◽  
Advantages And Disadvantages ◽  
Testing Techniques ◽  
General Note ◽  
Detection Of Defects

This paper provides a general note on the state of the art in the application of nondestructive testing techniques (NDT) for the detection of defects or deteriorations in metallic and nonmetallic oil and gas pipes. The advantages and disadvantages of each technique will be pointed out.

An Engineering Basis for Establishing Radiographic Acceptance Standards for Porosity in Steel Weldments

1965 ◽  
Vol 87 (4) ◽  
pp. 887-893 ◽  
Author(s):  
H. Greenberg
Keyword(s):  
Stress Concentration ◽  
Nondestructive Testing ◽  
Pressure Vessel ◽  
Maximum Size ◽  
Theoretical Studies ◽  
Concentration Effects ◽  
Close Proximity ◽  
Testing Techniques ◽  
Steel Welds ◽  
Made In

Radiographic acceptance standards, such as those found in the ASME Unfired Pressure Vessel Code are critically reviewed. Limits on the size and distribution of porosity in steel welds are analyzed from the viewpoint of susceptibility to failure in service. In large part, present standards for porosity appear to have been established on a “good workmanship” basis rather than on setting sound conservative limits for the maximum size, and distribution of flaws which can be tolerated without decreasing the reliability of the product. Radiographic acceptance standards in use today do not reflect the significant advances being made in (1) the fracture mechanics approach to designing for prevention of failure; (2) theoretical studies of the stress-concentration effects of holes in close proximity to one another; and (3) the possible use of complementary nondestructive testing techniques. Considerable emphasis is placed on the proposition that radiographic acceptance standards for weldments must be designed specifically for each particular application. Considerations applicable to welds in the 120-in-dia rocket motor case are cited as an example of how standards for acceptable porosity and inclusions can be established.

Adhesive bond evaluation by nondestructive testing techniques

1992 ◽  
Vol 25 (2) ◽  
pp. 99
Author(s):  
G.B. Fagan ◽  
R.W. Anthony ◽  
J. Bodig ◽  
G.P. Krueger
Keyword(s):  
Nondestructive Testing ◽  
Adhesive Bond ◽  
Testing Techniques ◽  
Bond Evaluation
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