Improved kinematic options in ALEGRA.

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Description

Algorithms for higher order accuracy modeling of kinematic behavior within the ALEGRA framework are presented. These techniques improve the behavior of the code when kinematic errors are found, ensure orthonormality of the rotation tensor at each time step, and increase the accuracy of the Lagrangian stretch and rotation tensor update algorithm. The implementation of these improvements in ALEGRA is described. A short discussion of issues related to improving the accuracy of the stress update procedures is also included.

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22 p.

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Farnsworth, Grant V. & Robinson, Allen Conrad December 1, 2003.

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Description

Algorithms for higher order accuracy modeling of kinematic behavior within the ALEGRA framework are presented. These techniques improve the behavior of the code when kinematic errors are found, ensure orthonormality of the rotation tensor at each time step, and increase the accuracy of the Lagrangian stretch and rotation tensor update algorithm. The implementation of these improvements in ALEGRA is described. A short discussion of issues related to improving the accuracy of the stress update procedures is also included.

Physical Description

22 p.

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  • Report No.: SAND2003-4510
  • Grant Number: AC04-94AL85000
  • DOI: 10.2172/918209 | External Link
  • Office of Scientific & Technical Information Report Number: 918209
  • Archival Resource Key: ark:/67531/metadc884097

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Office of Scientific & Technical Information Technical Reports

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  • December 1, 2003

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 29, 2016, 2:26 p.m.

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Farnsworth, Grant V. & Robinson, Allen Conrad. Improved kinematic options in ALEGRA., report, December 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc884097/: accessed October 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.