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Record 57 of 6213
Recent advances and progress towards an integrated interdisciplinary thermal-structural finite element technology
Author and Affiliation:
Namburu, Raju R.(Computer Sciences Corp., U.S. Army, High Performance Computing Research Center)
Tamma, Kumar K.(Minnesota Univ., Minneapolis, United States)
Abstract: An integrated finite element approach is presented for interdisciplinary thermal-structural problems. Of the various numerical approaches, finite element methods with direct time integration procedures are most widely used for these nonlinear problems. Traditionally, combined thermal-structural analysis is performed sequentially by transferring data between thermal and structural analysis. This approach is generally effective and routinely used. However, to solve the combined thermal-structural problems, this approach results in cumbersome data transfer, incompatible algorithmic representations, and different discretized element formulations. The integrated approach discussed in this paper effectively combines thermal and structural fields, thus overcoming the above major shortcomings. The approach follows Lax-Wendroff type finite element formulations with flux and stress based representations. As a consequence, this integrated approach uses common algorithmic representations and element formulations. Illustrative test examples show that the approach is effective for integrated thermal-structural problems.
Publication Date: Jan 01, 1993
Document ID:
19930050107
(Acquired Dec 28, 1995)
Accession Number: 93A34104
Subject Category: STRUCTURAL MECHANICS
Report/Patent Number: AIAA PAPER 93-1571
Document Type: Conference Paper
Publication Information: In: AIAA(ASME)ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 34th and AIAA/ASME Adaptive Structures Forum, La Jolla, CA, Apr. 19-22, 1993, Technical Papers. Pt. 4 (A93-33876 1; p. 2302-2312.; (SEE A93-33876)
Publisher Information: American Institute of Aeronautics and Astronautics, Washington, United States
Organization Source: NASA Johnson Space Center; Houston, TX, United States
NASA Langley Research Center; Hampton, VA, United States
Description: 11p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: DYNAMIC STRUCTURAL ANALYSIS; FINITE ELEMENT METHOD; THERMAL ANALYSIS; DYNAMIC MODELS; INTERPOLATION; TEMPERATURE EFFECTS; THERMOELASTICITY
Imprint And Other Notes: In: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 34th and AIAA/ASME Adaptive Structures Forum, La Jolla, CA, Apr. 19-22, 1993, Technical Papers. Pt. 4 (A93-33876 13-39), p. 2302-2312.
Miscellaneous Notes: Research supported by NASA, U.S. Army, and Univ. of Minnesota
Availability Source: Other Sources
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