Finite Element Analysis of Delamination Behaviors of Composite Laminates under Hygrothermal Environment Using Virtual Crack Closure Technique

2019 ◽  
Vol 19 (1) ◽  
pp. 147-153
Author(s):  
J. G. Li ◽  
P. F. Liu ◽  
J. K. Chu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Crack Closure ◽  
Composite Laminates ◽  
Virtual Crack Closure Technique ◽  
Closure Technique ◽  
Element Analysis ◽  
Hygrothermal Environment

Virtual Crack Closure Technique in the Analysis of Concrete Arch Dam Cracks

2013 ◽  
Vol 444-445 ◽  
pp. 1466-1470
Author(s):  
Dong Xu Wang ◽  
Liang Wu
Keyword(s):  
Finite Element ◽  
Crack Closure ◽  
Arch Dam ◽  
Virtual Crack Closure Technique ◽  
Closure Technique ◽  
Element Analysis ◽  
Interface Elements ◽  
Stress Energy ◽  
Calculation Results ◽  
New Ideas

In this paper, a 3-dimension finite element with dummy nodes for calculating and outputting the stress energy release (SERR) at the crack tip was built up based on virtual crack closure technique (VCCT), it is presented to demonstrate the virtual crack closure technique has high accuracy and good feasibility. The calculation results curve and the analytical solution curve are in good agreement. The results show that the proposed interface elements can be used to calculate to get accurate results by finite element analysis. It can give us some new ideas for Hydraulic structure crack research.

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