Mode methods for strain-hardening structures

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An approximation method is being developed to predict the dynamic plastic response of rigid, strain-hardening structures. This method is analogous to the instantaneous mode techniques used to treat rigid, perfectly plastic structures in that a deflection shape involving a number of arbitrary functions of time is selected, based on static deformation profiles. Two stress fields are associated with the deflection shape: One satisfies the equations of motion with appropriate boundary and continuity conditions, and the other satisfies the strain-hardening constitutive relation with appropriate boundary and smoothness conditions. The method is illustrated using the case of a simply-supported beam with a ... continued below

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Pages: (9 p)

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Youngdahl, C.K. April 1, 1992.

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Description

An approximation method is being developed to predict the dynamic plastic response of rigid, strain-hardening structures. This method is analogous to the instantaneous mode techniques used to treat rigid, perfectly plastic structures in that a deflection shape involving a number of arbitrary functions of time is selected, based on static deformation profiles. Two stress fields are associated with the deflection shape: One satisfies the equations of motion with appropriate boundary and continuity conditions, and the other satisfies the strain-hardening constitutive relation with appropriate boundary and smoothness conditions. The method is illustrated using the case of a simply-supported beam with a central plastic region.

Physical Description

Pages: (9 p)

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OSTI; NTIS; GPO Dep.

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  • 10. symposium on energy engineering sciences, Argonne, IL (United States), 11-13 May 1992

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  • Other: DE92014855
  • Report No.: ANL/CP-76120
  • Report No.: CONF-9205147--1
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 5211618
  • Archival Resource Key: ark:/67531/metadc1058472

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  • April 1, 1992

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  • Jan. 22, 2018, 7:23 a.m.

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  • Jan. 30, 2018, 1:10 p.m.

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Youngdahl, C.K. Mode methods for strain-hardening structures, article, April 1, 1992; Illinois. (digital.library.unt.edu/ark:/67531/metadc1058472/: accessed April 25, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.