scholarly journals Accurate Solutions of Stress Intensity Factors of Standard Fracture Test Specimens

2010 ◽  
Vol 452-453 ◽  
pp. 405-408 ◽  
Author(s):  
Akihide Saimoto ◽  
Fumitaka Motomura ◽  
Hironobu Nisitani
Keyword(s):  
Stress Intensity ◽  
Body Force ◽  
General Purpose ◽  
Two Dimensional ◽  
Fracture Test ◽  
Intensity Factors ◽  
Force Method ◽  
Body Force Method ◽  
Standard Specimens ◽  
Significant Figures

Practically exact solutions of stress intensity factor for several two-dimensional standard specimens were calculated and shown in numeric tables. The solutions were confirmed to converge until 6 significant figures through a systematical computation of discretization analysis. The convergence analyses were carried out by using a general purpose program based on a body force method.

Accurate stress intensity factors for kinked interface crack in bonded dissimilar half-plane

2021 ◽  
pp. 2140030
Author(s):  
Kazuhiro Oda ◽  
Nao-Aki Noda
Keyword(s):  
Stress Intensity ◽  
Interface Crack ◽  
Present Method ◽  
Body Force ◽  
The Body ◽  
Intensity Factors ◽  
Force Method ◽  
Kinked Crack ◽  
Body Force Method ◽  
Crack Tips

In this study, the stress intensity factor (SIF) of an interface kinked crack is analyzed by the singular integral equation of the body force method. The problem can be expressed by distributing the body force doublets of the tension and shear types along all the boundaries of the kinked and interface crack parts. The SIFs can be obtained directly from the densities of the body force doublets at the crack tips. Although the problem has already been calculated using the crack connection model, the accuracy of the analysis has not been clarified. From the analysis results in this study, it can be seen that the SIFs calculated by the crack connection model have a nonnegligible error, and the present method gives more accurate results. The advantage of the present method is that the SIFs of the kinked and the interface crack tips can be obtained at the same time with high accuracy.

D-24 Analysis of two-dimensional crack problems by mesh-free Body Force Method

2016 ◽  
Vol 2016.69 (0) ◽  
pp. 171-172
Author(s):  
Ryosuke HONDA ◽  
Akihide SAIMOTO ◽  
Yohei SONOBE ◽  
Konatsu TOMINAGA
Keyword(s):  
Body Force ◽  
Two Dimensional ◽  
Force Method ◽  
Body Force Method ◽  
Mesh Free ◽  
Crack Problems ◽  
Free Body
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