Journal ArticleDOI
Fracture Initiation Due to Asymmetric Impact Loading of an Edge Cracked Plate
Y. J. Lee,L. B. Freund +1 more
Reads0
Chats0
TLDR
In this paper, a semi-infinite plate containing an edge crack is considered and a normal velocity is imposed on the boundary of the plate on one side of the edge crack.Abstract:
The two-dimensional elastodynamic problem of a semi-infinite plate containing an edge crack is considered. A normal velocity is suddenly imposed on the boundary of the plate on one side of the edge crack. A combination of transient mode I and mode II deformation fields is induced near the crack tip. The corresponding stress intensity factor histories are determined exactly by linear superposition of several more readily obtainable stress wave propagation solutions. The stress intensity factor histories are determined for the time interval from initial loading until the first wave scattered at the crack tip is reflected at the plate edge and returns to the crack tipread more
Citations
More filters
Journal ArticleDOI
A method for dynamic crack and shear band propagation with phantom nodes
TL;DR: In this article, a new method for modeling arbitrary dynamic crack and shear band propagation is presented, where cracks are treated by adding phantom nodes and superposing elements on the original mesh.
Journal ArticleDOI
Dynamic crack propagation based on loss of hyperbolicity and a new discontinuous enrichment
TL;DR: In this article, a methodology is developed for switching from a continuum to a discrete discontinuity where the governing partial dierential equation loses hyperbolicity, and the transition occurs on a set of measure zero.
Journal ArticleDOI
Element-free galerkin methods for static and dynamic fracture
TL;DR: In this paper, an Element-free Galerkin (EFG) method for static and dynamic fracture problems is presented and applied for growing crack problems, since only minimal remeshing is needed to follow crack growth.
Journal ArticleDOI
Dynamic fracture using element-free galerkin methods
Ted Belytschko,Mazen R. Tabbara +1 more
TL;DR: The element-free Galerkin method for dynamic crack propagation is described and applied to several problems as mentioned in this paper, which facilitates the modelling of growing crack problems because it does not require remeshing; the growth of the crack is modelled by extending its surfaces.
Journal ArticleDOI
A comparative study on finite element methods for dynamic fracture
TL;DR: The performance of finite element methods for dynamic crack propagation in brittle materials is studied in this paper, where three methods are considered: the extended finite element method (XFEM), element deletion method and interelement crack method.