Unformatted text preview: 13 VM141 Analysis Assumptions and Modeling Notes
The problem is solved first using plane stress elements (PLANE2 and PLANE82), then using shell elements
(SHELL93) with the substructure analysis and expansion pass. A third solution is done using plane stress p-elements
(PLANE145). In the second case, the model is created as a superelement only to illustrate the procedure for
substructure capability. A more coarse mesh is defined for the p-element.
A one-fourth symmetry model is used. Three element types and the corresponding element type modifications
are used only for various printout control purposes. One half of the load is applied because of symmetry. POST1
is used to extract results from the solution phase. Since the midside nodal stresses are not available in POST1,
path operations are performed to get the compressive stress at 0.1 in. from the center of the disk. The P-method
allows specific results to be extracted directly so no path operations are needed. Results Comparison
Target ANSYS Ratio PLANE82 and
PLANE2 Stressy , psi (at x = 0.0, y = 0.0) -9549. -9649. 1.010 Stressy...
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This note was uploaded on 12/09/2010 for the course DEPARTMENT E301 taught by Professor Kulasinghe during the Spring '09 term at University of Peradeniya.
- Spring '09
- The Land