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  • 1
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    The MHOST finite element program: 3-D inelastic analysis methods for hot section components. Volume 2: User's manual (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The user options available for running the MHOST finite element analysis package is described. MHOST is a solid and structural analysis program based on the mixed finite element technology, and is specifically designed for 3-D inelastic analysis. A family of 2- and 3-D continuum elements along with beam and shell structural elements can be utilized, many options are available in the constitutive equation library, the solution algorithms and the analysis capabilities. The outline of solution algorithms is discussed along with the data input and output, analysis options including the user subroutines and the definition of the finite elements implemented in the program package.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-182235-VOL-2 , NAS 1.26:182235-VOL-2 , FEF/PD/1101/89-VOL-2
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    MHOST version 4.2. Volume 1: Users' manual (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: This manual describes the user options available for running the MHOST finite element analysis package. MHOST is a solid and structural analysis program based on mixed finite element technology, and is specifically designed for three-dimensional inelastic analysis. A family of two- and three-dimensional continuum elements along with beam and shell structural elements can be utilized. Many options are available in the constitutive equation library, the solution algorithms and the analysis capabilities. An overview of the algorithms, a general description of the input data formats, and a discussion of input data for selecting solution algorithms are given.
    Keywords: COMPUTER PROGRAMMING AND SOFTWARE
    Type: NASA-CR-182235-VOL-1 , NAS 1.26:182235-VOL-1
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 3
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    The MHOST finite element program: 3-D inelastic analysis methods for hot section components. Volume 1: Theoretical manual (1991)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Formulations and algorithms implemented in the MHOST finite element program are discussed. The code uses a novel concept of the mixed iterative solution technique for the efficient 3-D computations of turbine engine hot section components. The general framework of variational formulation and solution algorithms are discussed which were derived from the mixed three field Hu-Washizu principle. This formulation enables the use of nodal interpolation for coordinates, displacements, strains, and stresses. Algorithmic description of the mixed iterative method includes variations for the quasi static, transient dynamic and buckling analyses. The global-local analysis procedure referred to as the subelement refinement is developed in the framework of the mixed iterative solution, of which the detail is presented. The numerically integrated isoparametric elements implemented in the framework is discussed. Methods to filter certain parts of strain and project the element discontinuous quantities to the nodes are developed for a family of linear elements. Integration algorithms are described for linear and nonlinear equations included in MHOST program.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-182205 , NAS 1.26:182205
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    The MHOST finite element program: 3-D inelastic analysis methods for hot section components. Volume 3: Systems' manual (1989)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The internal structure is discussed of the MHOST finite element program designed for 3-D inelastic analysis of gas turbine hot section components. The computer code is the first implementation of the mixed iterative solution strategy for improved efficiency and accuracy over the conventional finite element method. The control structure of the program is covered along with the data storage scheme and the memory allocation procedure and the file handling facilities including the read and/or write sequences.
    Keywords: STRUCTURAL MECHANICS
    Type: NASA-CR-182236 , NAS 1.26:182236 , FEF/PD/1102/89-VOL-3
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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