An Integrated Approach for Efficient and High-fidelity Analysis of Composite Structures

An integrated approach for efficient and accurate analysis of composite structures is introduced in this work by connecting high-fidelity models of composite beams, plates, and shells with a versatile multibody dynamic environment. The high-fidelity models are those implemented in the computer programs VABS and VAPAS which are constructed using the variational asymptotic method without invoking any ad hoc kinematic assumptions. The mutlibody dynamic environment we choose is DYMORE, a general-purpose, finite element based flexible multibody dynamic code. This integrated approach can carry out various analyses of multibody systems involving components made with composite materials. Several examples including buckling, free vibration, and forced vibration of composite structures are studied and compared with other theories to demonstrate the efficiency and accuracy of high-fidelity models and the versatility of this approach for analysis of general composite structures.

[1]  A. K. Noor,et al.  An assessment of five modeling approaches for thermo-mechanical stress analysis of laminated composite panels , 2000 .

[2]  Inderjit Chopra,et al.  Refined Structural Dynamics Model for Composite Rotor Blades , 2001 .

[3]  Mark V. Fulton,et al.  Free-Vibration Analysis of Composite Beams , 1991 .

[4]  Dewey H. Hodges,et al.  The Vlasov Theory of the Variational Asymptotic Beam Sectional Analysis , 2004 .

[5]  M. Borri,et al.  Anisotropic beam theory and applications , 1983 .

[6]  V. Berdichevskiĭ.  Variational-asymptotic method of constructing a theory of shells , 1979 .

[7]  Carlos E. S. Cesnik,et al.  On Timoshenko-like modeling of initially curved and twisted composite beams , 2002 .

[8]  Inderjit Chopra,et al.  Experimental-theoretical investigation of the vibration characteristics of rotating composite box beams , 1992 .

[9]  Dewey H. Hodges,et al.  Asymptotic Approach for Thermoelastic Analysis of Laminated Composite Plates , 2004 .

[10]  E. Smith,et al.  Formulation and evaluation of an analytical model for composite box-beams , 1991 .

[11]  M. Seetharama Bhat,et al.  A new super convergent thin walled composite beam element for analysis of box beam structures , 2004 .

[12]  A. Noor,et al.  Assessment of Computational Models for Multilayered Composite Shells , 1990 .

[13]  D. Hodges,et al.  Validation of the Variational Asymptotic Beam Sectional Analysis , 2002 .

[14]  Dewey H. Hodges,et al.  On asymptotically correct Timoshenko-like anisotropic beam theory , 2000 .

[15]  Dewey H. Hodges,et al.  Asymptotically accurate 3-D recovery from Reissner-like composite plate finite elements , 2003 .

[16]  Dewey H. Hodges,et al.  Asymptotic generalization of Reissner–Mindlin theory: accurate three-dimensional recovery for composite shells , 2002 .

[17]  Dewey H. Hodges,et al.  Asymptotic construction of Reissner-like composite plate theory with accurate strain recovery , 2002 .

[18]  Carlos E. S. Cesnik,et al.  VABS: A New Concept for Composite Rotor Blade Cross-Sectional Modeling , 1995 .

[19]  R. P. Shimpi,et al.  A Review of Refined Shear Deformation Theories for Isotropic and Anisotropic Laminated Beams , 2001 .

[20]  N. Pagano,et al.  Exact Solutions for Composite Laminates in Cylindrical Bending , 1969 .

[21]  Wenbin Yu,et al.  Variational asymptotic modeling of composite dimensionally reducible structures , 2002 .