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3 edition of Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens found in the catalog.

Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens

Albert Kaufman

Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens

by Albert Kaufman

  • 58 Want to read
  • 29 Currently reading

Published by National Aeronautics and Space Administration, Scientific and Technical Information Branch, For sale by the National Technical Information Service] in Washington, D.C, [Springfield, Va .
Written in English

    Subjects:
  • Thermal stresses,
  • Strains and stresses,
  • Elasticity

  • Edition Notes

    StatementAlbert Kaufman and Larry E. Hunt
    SeriesNASA technical paper -- 1973
    ContributionsHunt, Larry E, United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
    The Physical Object
    Pagination28 p. :
    Number of Pages28
    ID Numbers
    Open LibraryOL14933096M

    Finite-element formulations for problems of large elastic-plastic deformation co-rotational rate of Kirchhoff stress Q*, more suited to use in constitutive relations. The relationship is [3] where o is the Cauchy stress, 0j.k is ~%,/ihk where x is the position vector of a material point in.   Published stress analysis solutions for crack problems are reviewed under three headings — elastic, elastic-plastic, and finite element. Emphasis is laid on results which are of practical importance for fracture analysis. The review section is concluded with a critical survey of some commonly used fracture design procedures. Results obtained by the author using elastic-plastic finite Cited by:

    DESCRIPTION OF ANALYSES Both computer programs used three-dImensional finite-element procedures to obtain an elastic analysis of the smgle-edge wedge geometry specimen. The NASTRAN program was used to obtain an analysis only for NASA TAZ-8A alloy for the time increment 15 seconds after Immersion into the heating bed. evaluated was a double-edge wedge specimen that had been thermally cycled in fluidized beds (ref. 13). MARC nonlinear analysis results for this problem are reported in reference 6. A combined isotropic-kinematic hardening model was used for the MARC analyses because only monotonic stress-strain properties were available for the wedge specimen material.

    Finite element analysis of a single bead-on-plate specimen using SYSWELD Article in International Journal of Pressure Vessels and Piping 86(1) January with Reads. McMecking and Rice have derived an eulerian finite element formulation for problems of large elastic-plastic flow. The formulation was given in a manner which allows any conventional finite element program, for small strain elastic-plastic analysis, to be simply and rigourously adapted to problems involving arbitraryFile Size: 4MB.


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Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens by Albert Kaufman Download PDF EPUB FB2

Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens. Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [Springfield, Va.: For sale by the National Technical Information Service], (OCoLC) Material Type.

Elastic-Plastic Finite Element Analysis of Double-Edge Notched Fatigue Tests The present paper presents results of an investigation by the TF-EP-FEA to apply EP-FEA to predict cyclic life of double-edge notched fatigue specimens.

EP-FEA results are compared to fatigue test results for two notch root radii in stainless steel double-edge Author: D. Jones, S. Adams. Elastic-plastic finite-element analysis of thermally cycled single-edge wedge specimens.

Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [Springfield, Va.: For sale by the National Technical Information.

The present paper provides elastic–plastic analyses for the DE(T) specimen, based on detailed two-dimensional (2-D) and three-dimensional (3-D) finite element (FE) analyses together with analytical limit analysis results. The objectives of this paper are by: Two elastic-plastic fracture parameters are considered here,J* and a direct evaluation of the potential energy release rate,G.

Both parameters are evaluated from elastic-plastic finite element solutions of thermally loaded structures. The results show a reasonable agreement between the two parameters withG being numerically more by: A test program was undertaken to demonstrate the ability of elastic-plastic finite element methods to predict dynamic inelastic response for simple structural members.

Cantilever and fixed-beam specimens were tested to levels that produced plastic straining in the range of % to % and permanent sets.

Acceleration, strain, and displacement data were recorded for use in analytical by: 1. The Elastic-Plastic Finite-Element Method. Abstract. The rigid-plastic and viscoplastic finite-element techniques described in the previous chapters are useful approaches to the modelling of metal deformation when the elastic component of strain may reasonably be ignored.

This is often the case, for example, for hot working by: 4. Three-dimensional, elastic and elastic-plastic finite element analysis of small surface cracks was performed. The elastic analysis is in good agreement with other solutions.

For a round surface with a radius equal to six times the crack depth, the K at the surface is about 4% higher than the K Cited by: The finite element method became a common instrument in struc- tural analysis and it seems to be also well established in fracture mechanics.

It is a fine instrument to study the influence of material parameters and geometry parameters of specimens on the clastic-plastic fracture mechanics by: 6. Summary. A general finite element displacement analysis capable of determining the complete elastic-plastic behavior of complex shaped, transversely loaded plates is presented.

The approach is formulated in incremental form and is based on the tangent stiffness concept. A layered plate model is adopted to aid in the description Cited by: 3. Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens / By Albert Kaufman, Larry E.

Hunt and United States. National Aeronautics and Space Administration. Computers it SirwIWtS Vol. Printed in Great Britain. /89 $ + Pergamon Press pic FINITE ELEMENT ELASTIC-PLASTIC ANALYSIS OF CRACKS A, N.

PALAZOTTO and J. MERCER Department of Aeronautics and Astronautics, Air Force Institute of Technology, Wright-Patterson AFB, OHU.S.A. (Received 26 September ) Abstracthe Cited by: 4. The finite element method has been used to compute stresses and strains associated with geometric and material discontinuities in large elastic-plastic plates under conditions of plane strain.

The plate material is assumed to obey the von Mises yield criterion and its associated flow rule. Numerical results are discussed in connection with a tentative criterion of fatigue crack by: 5.

Stochastic Elastic-Plastic Finite Element Method Boris Jeremi´c In collaboration with Kallol Sett, You-Chen Chao and Levent Kavvas CEE Dept., University of California, Davis and ESD, Lawrence Berkeley National Laboratory Intel Corporation Webinar Series, October Jeremi´cComputational Geomechanics Group Stochastic Elastic-Plastic Finite File Size: 4MB.

This report deals with the analysis of plates and eccen­ trically stiffened plates in the elastic-plastic range using the finite element stiffness approach. The analysis is based on the classical theory of thin plates exhibiting small deformations.

A general procedure for the analysis of elastic-plastic­ plates is Size: 4MB. This chapter discusses finite element analysis of crack problems in highly elastic materials. The finite element method (FEM) is based on the virtual velocity equation, the incompressibility condition, and the stress–strain relations.

In the present procedure, the elements. Based on detailed two-dimensional (2-D) and three-dimensional (3-D) finite element (FE)analyses, this paper attempts to quantify in-plane and out-of-plane constraint effects on elastic-plastic J and cracked tip stresses for biaxially loaded plate with a through-thickness crack and semi-elliptical surface crack.

It is found that the reference stress based approach for uniaxial loading can be Author: Kwang Hwa Chung, J.S. Kim, Young Jin Kim. HOMOGENEOUS AND LAYERED MATERIALS: FINITE ELEMENT ANALYSIS SIVA NAGA VENKATA RAVI KIRAN KURAPATI University of Kentucky Right click to open a feedback form in a new tab to let us know how this document benefits you.

Recommended Citation KURAPATI, SIVA NAGA VENKATA RAVI KIRAN, "ELASTIC-PLASTIC INDENTATION DEFORMATION IN HOMOGENEOUS AND LAYERED Cited by: 4. The elastic-plastic 3D analyses results for different compact-tension specimens and a plate containing a semi-elliptical surface crack were compared with experimental : Wolfgang Brocks.

The overall approach to modelling the elastic-plastic peel tests is to employ a finite-element analysis (FEA) approach and to model the crack advance through the adhesive layer via a node-release technique, based upon attaining a critical plastic strain in the element.

Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens / (Washington, D.C.: National Aeronautics and Space Administration, Scientific and Technical Information Branch ; [Springfield, Va.An Elastic–Plastic–Cracking Model for Finite Element Analysis of Indentation Cracking in Brittle Materials Article in International Journal of Solids and Structures 38(34) August.Elastic-plastic finite-element analysis of thermally cycled double-edge wedge specimens [microform] / A Thermal stresses in severe environments / edited by D.P.H.

Hasselman and R.A. Heller; Thermal stress analysis of space shuttle orbiter wing skin panel and thermal protection system [microfor.