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Kun Liu - One of the best experts on this subject based on the ideXlab platform.

  • Free Vibration Analysis for Tapered Cross-Section Steel-Concrete Composite Material Beam
    Materials Science Forum, 2017
    Co-Authors: Jun Xia, Zhi Qiang Shen, Kun Liu
    Abstract:

    The tapered cross-section beams made of steel-concrete composite material are widely used in engineering constructions and their dynamic behavior is strongly influenced by the type of shear connection jointing the two different materials. The 1D high order finite Element model for tapered cross-section steel-concrete composite material beam with interlayer slip was established in this paper. The Numerical results for vibration nature frequencies of the composite beams with two typical boundary conditions were compared with ANSYS using 2D Plane Stress Element. The 1D Element is more efficient and economical for the common tapered cross-section steel-concrete composite material beams in engineering.

  • Flexural Analysis for Tapered Cross-Section Steel-Concrete Material Composite Beam
    Key Engineering Materials, 2016
    Co-Authors: Jun Xia, Zhi Qiang Shen, Kun Liu
    Abstract:

    The flexural behavior of tapered cross-section steel-concrete composite material beams frequently used in structural engineering is strongly influenced by the type of shear connection between the steel beam and the concrete slab. The 1D high order finite Element model for tapered cross-section steel-concrete composite material beams with interlayer slip were established in this paper. The Numerical results for deflection and interlayer slip of the composite beam with two typical boundary conditions were compared with ANSYS using 2D Plane Stress Element. The 1D Element is more efficient and economical for the common tapered cross-section steel-concrete composite material beams in engineering.

Charles E. Augarde - One of the best experts on this subject based on the ideXlab platform.

  • GENERATION OF SHAPE FUNCTIONS FOR STRAIGHT BEAM ElementS
    Computers & Structures, 1998
    Co-Authors: Charles E. Augarde
    Abstract:

    Abstract Straight beam finite Elements with greater than two nodes are used for edge stiffening in Plane Stress analyses and elsewhere. It is often necessary to match the number of nodes on the edge stiffener to the number on a whole Plane Stress Element side. Beam Elements employ shape functions which are recognised to be level one Hermitian polynomials. An alternative to the commonly adopted method for determining these shape functions is given in this note, using a formula widely reported in mathematical texts which has hitherto not been applied to this task in the finite Element literature. The procedure derives shape functions for beams entirely from the set of Lagrangian interpolating polynomials. Examples are given for the derivation of functions for a three and four-noded beam Element.

Jun Xia - One of the best experts on this subject based on the ideXlab platform.

  • Free Vibration Analysis for Tapered Cross-Section Steel-Concrete Composite Material Beam
    Materials Science Forum, 2017
    Co-Authors: Jun Xia, Zhi Qiang Shen, Kun Liu
    Abstract:

    The tapered cross-section beams made of steel-concrete composite material are widely used in engineering constructions and their dynamic behavior is strongly influenced by the type of shear connection jointing the two different materials. The 1D high order finite Element model for tapered cross-section steel-concrete composite material beam with interlayer slip was established in this paper. The Numerical results for vibration nature frequencies of the composite beams with two typical boundary conditions were compared with ANSYS using 2D Plane Stress Element. The 1D Element is more efficient and economical for the common tapered cross-section steel-concrete composite material beams in engineering.

  • Flexural Analysis for Tapered Cross-Section Steel-Concrete Material Composite Beam
    Key Engineering Materials, 2016
    Co-Authors: Jun Xia, Zhi Qiang Shen, Kun Liu
    Abstract:

    The flexural behavior of tapered cross-section steel-concrete composite material beams frequently used in structural engineering is strongly influenced by the type of shear connection between the steel beam and the concrete slab. The 1D high order finite Element model for tapered cross-section steel-concrete composite material beams with interlayer slip were established in this paper. The Numerical results for deflection and interlayer slip of the composite beam with two typical boundary conditions were compared with ANSYS using 2D Plane Stress Element. The 1D Element is more efficient and economical for the common tapered cross-section steel-concrete composite material beams in engineering.

Erwin Stein - One of the best experts on this subject based on the ideXlab platform.

  • Fast transient dynamic Plane Stress analysis of orthotropic Hill-type solids at finite elastoplastic strains
    International Journal of Solids and Structures, 1996
    Co-Authors: Paul Steinmann, Christian Miehe, Erwin Stein
    Abstract:

    The objective of this work is the geometrically nonlinear Plane Stress analysis of orthotropic Hill type elastoplastic solids under short term dynamic loading conditions. Thereby, the underlying motivation is the necessity to model the anisotropic behaviour of metal specimens which is due to the manufacturing procedure in terms of an orthotropic yield condition. To this end, the classical von Mises condition in the framework of multiplicative elastoplasticity is substituted by a yield criterion which invokes a second order anisotropy tensor acting on the deviatoric Stresses in the plastic intermediate configuration. A reparametrization of this model reveals its relation to the classical criterion originally proposed by Hill in the geometrically linear setting. Moreover an Element technology is outlined recovering the Plane Stress response of arbitrary 3D constitutive models without any Plane Stress specific modifications in the large strain regime. The intriguing influence of certain types of orthotropy on the failure patterns of thin metal sheets under Plane Stress uniaxial extension is investigated numerically. Thereby, an explicit time stepping procedure designed to incorporate the developed Plane Stress Element is employed to trace the short term response predictions of the investigated specimens.

M. L. Liu - One of the best experts on this subject based on the ideXlab platform.

  • Hybrid strain based three-node flat triangular shell Elements
    Finite Elements in Analysis and Design, 1994
    Co-Authors: M. L. Liu
    Abstract:

    Abstract A series of three flat triangular shell Elements with three corner nodes and six degrees-of-freedom per node is proposed. The Elements are based on the Hellinger-Reissner hybrid strain formulation. Each of these Elements is considered as a combination of a triangular bending Element and a Plane Stress Element. The bending component is degenerate and isoparametric adopting the specially designed strain distribution to suppress shear-locking in the “thin” limit. Thus, they are generally applicable to thin and thick shells. The Plane Stress component is built on the basis of Allman's triangle. Effort has also been directed to study the drilling degress-of-freedom. A scheme that has a more satisfactory physical basis so that the resulting Elements are capable of reflecting true normal rotations as well as desirable bending and membrane behaviours is presented. Explicit expressions of all the three Element stiffness matrices are derived. They eliminate the need for numerical integration for the Element stiffness matrices and thereby improve significantly the computational time. Numerical studies, including those of the obstacle course, are performed and reported in this paper.