Applications of energy release rate techniques to part-through cracks in plates and cylinders. Volume 1. ORMGEN-3D: a finite element mesh generator for 3-dimensional crack geometries
This report (Volume 1) describes the ORMGEN-3D (Oak Ridge Mesh GENerator - 3D) finite element mesh generator program for computational fracture mechanics analysis. The program automatically generates a three-dimensional (3-D) finite element model for six different crack geometries. These geometries include flat plates with straight or curved surface cracks and cylinders with part-through cracks on the outer or inner surface. Mathematical or user-defined crack shapes may be considered. ORMGEN-3D generates a core of special wedge or collapsed prism elements at the crack front to introduce the appropriate stress singularity at the crack tip. Regular 20-node isoparametric brick elements are used elsewhere in the modeling. Also, a cladding option is available that allows for an embedded or penetrating crack in the clad material. As few as four input cards are required to execute the program. ORMGEN-3D is part of a three-program system, ORMGEN-ADINA-ORVIRT, which addresses linear or nonlinear fracture in 2- or 3-D crack geometries.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- W-7405-ENG-26
- OSTI ID:
- 6663529
- Report Number(s):
- NUREG/CR-2997-Vol.1; ORNL/TM-8527-Vol.1; ON: DE83003701
- Country of Publication:
- United States
- Language:
- English
Similar Records
ORNOZL: A finite-element mesh generator for nozzle-cylinder intersections containing inner-corner cracks
ORMGEN. PC: a microcomputer program for automatic mesh generation of 2-D crack geometries