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Title: INGRID by example: A pictorial tutorial

Abstract

The following examples of INGRID input files and results are from various sources including Doug Stillman. In many cases, they are the same as in the examples section of the INGRID manual by Doug Stillman. I have made some modest improvements so that they are all complete input files to be run with the latest version of INGRID. These files have been attached to the front end of the INGRID source as comments. I wish to invite all INGRID user's to submit any favorite input files to be included in this tutorial. Such an input file should not be too large, and the object being generated should have a natural appeal to INGRID users. Feel free to make suggestions. This tutorial will soon replace the examples section of the manual. The entire manual will be replaced a section at a time. I chose to do this section first, since it could give the most benefit in the shortest amount of time. As soon as I make INGRID interactive, I will then rewrite the section on standard parts.

Authors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (USA)
Sponsoring Org.:
DOE/DP
OSTI Identifier:
6473469
Report Number(s):
UCID-21566
ON: DE91000481
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTER GRAPHICS; COMPUTER ARCHITECTURE; MESH GENERATION; I CODES; MANUALS; COMPUTER CODES; DOCUMENT TYPES; 990200* - Mathematics & Computers

Citation Formats

Rainsberger, R. INGRID by example: A pictorial tutorial. United States: N. p., 1988. Web. doi:10.2172/6473469.
Rainsberger, R. INGRID by example: A pictorial tutorial. United States. doi:10.2172/6473469.
Rainsberger, R. Tue . "INGRID by example: A pictorial tutorial". United States. doi:10.2172/6473469. https://www.osti.gov/servlets/purl/6473469.
@article{osti_6473469,
title = {INGRID by example: A pictorial tutorial},
author = {Rainsberger, R.},
abstractNote = {The following examples of INGRID input files and results are from various sources including Doug Stillman. In many cases, they are the same as in the examples section of the INGRID manual by Doug Stillman. I have made some modest improvements so that they are all complete input files to be run with the latest version of INGRID. These files have been attached to the front end of the INGRID source as comments. I wish to invite all INGRID user's to submit any favorite input files to be included in this tutorial. Such an input file should not be too large, and the object being generated should have a natural appeal to INGRID users. Feel free to make suggestions. This tutorial will soon replace the examples section of the manual. The entire manual will be replaced a section at a time. I chose to do this section first, since it could give the most benefit in the shortest amount of time. As soon as I make INGRID interactive, I will then rewrite the section on standard parts.},
doi = {10.2172/6473469},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 01 00:00:00 EST 1988},
month = {Tue Nov 01 00:00:00 EST 1988}
}

Technical Report:

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  • INGRID is a general-purpose, three-dimensional mesh generator developed for use with finite element, nonlinear, structural dynamics codes. INGRID generates the large and complex input data files for DYNA3D, NIKE3D, FACET, and TOPAZ3D (ESTSC. One of the greatest advantages of INGRID is that virtually any shape can be described without resorting to wedge elements, tetrahedrons, triangular elements or highly distorted quadrilateral or hexahedral elements. Other capabilities available are in the areas of geometry and graphics. Exact surface equations and surface intersections considerably improve the ability to deal with accurate models, and a hidden line graphics algorithm is included which is efficientmore » on the most complicated meshes. The primary new capability is associated with the boundary conditions, loads, and material properties required by nonlinear mechanics programs. Commands have been designed for each case to minimize user effort. This is particularly important since special processing is almost always required for each load or boundary condition.« less
  • INGRID is a general-purpose, three-dimensional mesh generator developed for use with finite element, nonlinear, structural dynamics codes. INGRID generates the large and complex input data files for DYNA3D, NIKE3D, FACET, and TOPAZ3D. One of the greatest advantages of INGRID is that virtually any shape can be described without resorting to wedge elements, tetrahedrons, triangular elements or highly distorted quadrilateral or hexahedral elements. Other capabilities available are in the areas of geometry and graphics. Exact surface equations and surface intersections considerably improve the ability to deal with accurate models, and a hidden line graphics algorithm is included which is efficient onmore » the most complicated meshes. The primary new capability is associated with the boundary conditions, loads, and material properties required by nonlinear mechanics programs. Commands have been designed for each case to minimize user effort. This is particularly important since special processing is almost always required for each load or boundary condition.« less
  • INGRID is a general-purpose, three-dimensional mesh generator developed for use with finite element, nonlinear, structural dynamics codes. INGRID generates the large and complex input data files for DYNA3D, NIKE3D, FACET, and TOPAZ3D. One of the greatest advantages of INGRID is that virtually any shape can be described without resorting to wedge elements, tetrahedrons, triangular elements or highly distorted quadrilateral or hexahedral elements. Other capabilities available are in the areas of geometry and graphics. Exact surface equations and surface intersections considerably improve the ability to deal with accurate models, and a hidden line graphics algorithm is included which is efficient onmore » the most complicated meshes. The primary new capability is associated with the boundary conditions, loads, and material properties required by nonlinear mechanics programs. Commands have been designed for each case to minimize user effort. This is particularly important since special processing is almost always required for each load or boundary condition.« less
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  • INGRID generates complete input files for the codes DYNA3D, NIKE3D, FACET, and TOPAZ3D. Geometries are described primarily using index space concepts which came from the program INGEN. The ideas used in INGEN were reworked into a new method which is both simple and powerful. Interactive graphics in INGRID are patterned after TAURUS, a three-dimensional post-processor, and MAZE, a two-dimensional mesh generator. Much of the coding from MAZE is directly incorporated in INGRID.