High-order stable generalized/eXtended finite element approximations for accurate stress intensity factors

2021 ◽  
Vol 241 ◽  
pp. 107308
Author(s):  
B. Mazurowski ◽  
A.G. Sanchez-Rivadeneira ◽  
N. Shauer ◽  
C.A. Duarte
Keyword(s):  
Finite Element ◽  
Stress Intensity ◽  
Stress Intensity Factors ◽  
High Order ◽  
Intensity Factors ◽  
Extended Finite Element ◽  
Finite Element Approximations ◽  
Accurate Stress

scholarly journals Numerical simulation of the crack 2D by the finite element incorporated the discontinuity

2008 ◽  
Vol 30 (2) ◽  
pp. 80-88
Author(s):  
Nguyen Truong Giang
Keyword(s):  
Finite Element ◽  
Stress Intensity ◽  
Stress Intensity Factors ◽  
Extended Finite Element Method ◽  
Source Code ◽  
Intensity Factors ◽  
Extended Finite Element ◽  
Displacement Fields ◽  
Cracked Plates ◽  
Stress And Deformation

Determining stress intensity factors is important in fracture mechanics. The extended finite element method (XFEM) provides a robust and accurate to determine factors. This paper describes some results from the analysis of cracked plates using XFEM. Extended finite elements allow the entire crack to be represented independently of the meshing. The elements employ discontinuous functions and the facture mechanics two dimensional asymptotic crack tip displacement fields. The Fortran source code of Cast3M applies these elements to a set of examples. The obtained stress and deformation fields are used to compute stress intensity factors via interaction integrals. The results are compared with these obtained from conventional FEM to demonstrate the advantages of the employing the new elements.

Sign in / Sign up

Export Citation Format

Share Document