Stochastic Improvement of the Residual Strength of a Stiffened Panel


Article Preview

The objective of robust design is to optimize the mean of a given target variable and to minimize the variability that results from uncertainty represented by “noise” factors. A recent strategy for robust design is based on stochastic processes, which has resulted in a new design technique called “stochastic design improvement” (SDI). In this work a home-made procedure is presented, which is based on the SDI technique and which is illustrated with reference to a case study which aims to increase the residual strength of a cracked stiffened aluminum panel.



Key Engineering Materials (Volumes 348-349)

Edited by:

J. Alfaiate, M.H. Aliabadi, M. Guagliano and L. Susmel




F. Caputo et al., "Stochastic Improvement of the Residual Strength of a Stiffened Panel", Key Engineering Materials, Vols. 348-349, pp. 301-304, 2007

Online since:

September 2007




[1] C. Zang, M.I. Friswell, J. E. Mottershead: A review of robust optimal design and its application in dynamics, Computers and Structures vol. 83 (2005), p.315.


[2] T. E. Murphy, K. L. Tsui, J. K. Allen: A review of robust design methods for multiple responses, Research in Engineering Design vol. 16 (2005), p.118.

[3] F. Caputo, A. Soprano, G. Monacelli, Stochastic Design Improvment of an impact absorber, Latin American J. of Solids and Structures vol 3 (2006) p.41.

[4] I. Doltsinis, F. Rau, M. Werner: Analysis of Random Systems, edited by I. Doltsinis, CIMNE, Barcelona, Spain (2004), pp.9-149.

[5] X. Gao, J. Faleskog, C. F. Shih, Cell model for nonlinear fracture analysis - I. Micromechanics calibration, International Journal of Fracture vol. 89 (1998), p.355.

[6] X. Gao, J. Faleskog, C. F. Shih, Cell model for nonlinear fracture analysis - II. Fracture process calibration and verification, International Journal of Fracture vol. 89 (1998), p.375.

[7] A. S. Gullerud, K. C. Koppenhoefer, A. Roy, R. H. Dodds, jr.: Warp3D- Release 13. 8 - 3D Dynamic Nonlinear Fracture analysis of Solids Using Parallel Computers and Workstations, (University of Illinois, Illinois 2000).

[8] H. J. ten Hoeve, L. Schra, A. L. P. J. Michielsen, H. Vlieger: Residual strength test on stiffened panels with multiple-site damage, report n: DOT/FAA/AR-98/53, U.S. Department of Transportation (1999).

[9] F. Caputo, G. Lamanna, A. Soprano: Numerical Investigation on the Crack Propagation in a Flat Stiffened Panel, Key Engineering Materials vols. 324-325 (2006), p.559.


Fetching data from Crossref.
This may take some time to load.