scholarly journals Discussion: “Dynamic Crack Propagation Analysis by Moving Singular Boundary Elements” (Gallego, R., and Dominguez, J., 1992, ASME J. Appl Mech., 59, pp. S158–S162)

1992 ◽  
Vol 59 (4) ◽  
pp. 1045-1046 ◽  
Author(s):  
Robert B. Haber
Keyword(s):  
Crack Propagation ◽  
Boundary Elements ◽  
Dynamic Crack Propagation ◽  
Dynamic Crack ◽  
Singular Boundary ◽  
Propagation Analysis

Dynamic Crack Propagation Analysis by Moving Singular Boundary Elements

1992 ◽  
Vol 59 (2S) ◽  
pp. S158-S162 ◽  
Author(s):  
Rafael Gallego ◽  
Jose´ Dominguez
Keyword(s):  
Crack Propagation ◽  
Boundary Element ◽  
Numerical Solutions ◽  
Dynamic Crack Propagation ◽  
Dynamic Crack ◽  
Singular Boundary ◽  
Singular Element ◽  
Infinite Domain ◽  
Propagation Analysis ◽  
Finite Domains

An efficient boundary element procedure for the dynamic analysis of crack propagation in unbounded and arbitrary shape finite bodies is presented. The procedure is based on the direct time domain formulation of the boundary element method. A moving singular element and a remeshing technique have been developed to model the asymptotic solution of the stresses near the propagating crack tip. These ideas are easily implemented for a boundary discretization as opposed to similar procedures previously developed in a finite element context. The method is applied to problems of dynamic crack propagation in finite and infinite elastic domains. The obtained numerical results are compared with infinite domain analytical solutions and with available numerical solutions for finite domains.

Dynamic crack propagation analysis based on the s-version of the finite element method

2020 ◽  
Vol 366 ◽  
pp. 113091
Author(s):  
Kota Kishi ◽  
Yuuki Takeoka ◽  
Tsutomu Fukui ◽  
Toshiyuki Matsumoto ◽  
Katsuyuki Suzuki ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Crack Propagation ◽  
Dynamic Crack Propagation ◽  
Dynamic Crack ◽  
The Finite Element Method ◽  
Propagation Analysis ◽  
Element Method

Instable Crack Propagation Analysis with PDS-FEM

2012 ◽  
Vol 234 ◽  
pp. 53-58
Author(s):  
Hao Chen
Keyword(s):  
Crack Propagation ◽  
Loading Rate ◽  
Crack Pattern ◽  
Dynamic Crack Propagation ◽  
Dynamic Crack ◽  
Parallel Cracks ◽  
Dynamic Setting ◽  
Propagation Analysis ◽  
High Loading Rate ◽  
The Stability

This paper studies the stability of dynamic crack propagation in a homogeneous plate with 2 parallel cracks located in an anti-symmetric manner. PDS-FEM is extended to the dynamic setting, and a method to randomly generate unbiased mesh is developed. Monte-Carlo simulation is carried out to study the crack patterns. It is shown that a solution for low and high loading rate displacement loading condition is stable or instable, respectively, since the crack pattern loses anti-symmetricity for the latter boundary condition.

scholarly journals 3D dynamic crack propagation analysis with PDS-FEM

2009 ◽  
Vol 2009 ◽  
pp. 193-200 ◽  
Author(s):  
M.L.L. Wijerathne ◽  
Hide Sakaguchi ◽  
Kenji Oguni ◽  
Muneo Hori
Keyword(s):  
Crack Propagation ◽  
Dynamic Crack Propagation ◽  
Dynamic Crack ◽  
Propagation Analysis
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