scholarly journals Finite Element Analysis for Monitoring Interface Crack between Solder Ball and Copper by Direct Current Potential Difference Method

2008 ◽  
Vol 2 (5) ◽  
pp. 654-665 ◽  
Author(s):  
Naoya TADA ◽  
Takahiro ANDOU ◽  
Toru KAMITANI
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Interface Crack ◽  
Direct Current ◽  
Difference Method ◽  
Solder Ball ◽  
Potential Difference ◽  
Element Analysis ◽  
Current Potential

Finite Element Analysis for the Evaluation of Cracks at a Pipe-Flange Welded Part by the Direct-Current Potential Difference Method

2015 ◽  
Author(s):  
Naoya Tada ◽  
Masaki Kosaka
Keyword(s):  
Finite Element ◽  
Direct Current ◽  
Difference Method ◽  
Evaluation Method ◽  
Fatigue Cracking ◽  
Potential Difference ◽  
Piping System ◽  
Element Analysis ◽  
Non Destructive ◽  
Current Potential

The use of a flange joint is a popular method to close the end of pipes or connect pipes in manufacturing industries. As the pipes are often subjected to vibrations and cyclic bending, fatigue cracking may occur at the welded part between the pipe and flange. It is therefore important to detect and monitor the cracking in this part to ensure safety of the whole piping system. The direct-current potential difference method (DC-PDM) is known as a suitable non-destructive technique to monitor the initiation and growth of cracks and it has been applied to cracks and wall thinning on the inner surface of pipes. In this study, finite element analyses were carried out to clarify the relationship between the size and location of cracks at the pipe-flange welded part and the potential difference. An evaluation method of circumferential crack length angle by DC-PDM was proposed.

Sign in / Sign up

Export Citation Format

Share Document