Material Characterization for Dynamic Simulation of Non-Homogeneous Structural Members

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Generally, simulation of non-homogeneous materials requires a homogeneous representation with equivalent properties different from the constitutive elements. Determination of the equivalent properties for dynamic simulation is not always a direct and straightforward calculation, as they have to represent, not only the static reactions, but also the dynamic behavior, which depends on a more complex relation of the geometrical (area, inertia moment), mechanical (elastic modulus) and physical (density) properties. In this context, the Direct Sensitivity Method (DSM) is developed to calibrate structural parameters of a finite element model using a priori information with an inverse parameter identification scheme, where parameters are optimized through an error sensitivity function using experimental data with the dynamic responses of the model. Results demonstrate that parameters of materials can be calibrated efficiently from the DSM and that key aspects for this calibration are noise, sensitivity (structural and sensor), and the finite element model representation.

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Edited by:

Alexander Balankin, José Martínez Trinidad and Orlando Susarrey Huerta

Pages:

46-53

DOI:

10.4028/www.scientific.net/KEM.449.46

Citation:

J.A. Quintana-Rodríguez et al., "Material Characterization for Dynamic Simulation of Non-Homogeneous Structural Members", Key Engineering Materials, Vol. 449, pp. 46-53, 2010

Online since:

September 2010

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$38.00

[1] A.E. Aktan, F.N. Catbas, K.A. Grimmelsman and C.J. Tsikos: ASCE Journal of Engineering Mechanics (2000), pp.711-724.

[2] F.J. Carrión, F.J. Doyle and A. Lozano: Smart Materials and Structures (2003), pp.776-784.

[3] F.J. Doyle, in: Modern Experimental Stress Analysis: Completing the Solution of Partially Specified Problems, edited by John Wiley & Sons, New York, NY (2004).

DOI: 10.1002/0470861584

[4] W. Dai, CH.P. Yu, J.M. Roesset: Computer Aided Civil and Infrastructure Engineering (2007), pp.265-281.

[5] S.W. Doebling, Farrar and M.B. Prime: The Shock and Vibration Digest (1998), pp.91-105.

[6] F.J. Doyle, in: Wave Propagation in Structures edited by Springer-Verlag, NY (1997).

[7] J.A. Quintana: M. S. Thesis, AAE Department, Purdue University (1997).

[8] B.N. Robson in: Modeling of Field-Tested Highway Bridges, Presented at the 72nd Annual Meeting of the Transportation Research Board, Washington, D. C. (1993).

[9] R. Adams and F.J. Doyle, Experimental Mechanics (2002), pp.25-36.

[10] S.W. Doebling, C.F. Farrar and R. Goodman: Proceedings of the 15th International Modal Analysis Conference, Orlando, FL (1997), pp.919-929.

[11] Farrar, S.W. Doebling and T.A. Duffey: Structural Dynamics@2000: Current Status and Future Directions, England (2000), pp.145-174.

[12] F.J. Doyle: Static and Dynamic Analysis of Structures, edited by Kulwer, Netherlands (1991).

[13] A.N. Tokhonov and V. Y Arsenin, in: Solutions of Ill-Posed Problems, edited Wiley & Sons, NY (1997).

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