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Isofinel: isoparametric finite element code for elastic analysis of two-dimensional bodies
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Marino, C. |
| Copyright Year | 1975 |
| Description | A formulation is presented for the development of a finite element program for the elastic analysis of two-dimensional bodies using the eight-node isoparametric quadrilateral. The program solves for both plane stress and plane strain problems. The finite element formulation based on the isoparametric displacement functions is presented. The program structure is given in the form of flow diagrams with descriptions of the numerical procedure used to obtain the element stiffness matrix, and the solution method employed to solve for nodal displacements. Three numerical examples (a plate under uniaxial tension, a plate under pure shear, and a beam under pure bending) are presented to illustrate the capability and limitations of the element implementation. The first problem is solved exactly by the element, as predicted by the form of its displacement functions. In the other two problems the accuracy of the solution is highly dependent upon the slenderness of the element, the number of elements in the map, and the numerical integration scheme used to build the element stiffness matrix. |
| File Size | 1936101 |
| Page Count | 68 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750023411 |
| Archival Resource Key | ark:/13960/t5k97zn09 |
| Language | English |
| Publisher Date | 1975-09-01 |
| Access Restriction | Open |
| Subject Keyword | Structural Mechanics Finite Element Method Stiffness Matrix Stress Analysis Two Dimensional Bodies Numerical Integration Plane Stress Elastic Properties Graphs Charts Computer Programs Stress-strain Diagrams Structural Analysis Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
