caa a22 4500 445811595 CHVBK 20180317145213.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s00419-010-0459-y doi (NATIONALLICENCE)springer-10.1007/s00419-010-0459-y Characterization of hole-diameter in thin metallic plates perforated by spherical projectiles using genetic algorithms [Elektronische Daten] [H. Abbas, S. Alsayed, T. Almusallam, Y. Al-Salloum] The empirical and semi-empirical models available in literature for the estimation of hole-diameter in thin metallic plates by the strike of spherical projectile are mostly valid for the data for which these have been developed. This may be partly attributed to the form of the model employed for their development. The behavioural constraints and the limiting conditions are not satisfied by these models. In the present paper, some of the non-dimensional models have been developed that satisfy the behavioural constraints and limiting conditions. The data used in the development of earlier statistical models has been reanalyzed for the development of new models for the characterization of hole-diameter with a view towards seeing whether better characterization is possible. The genetic algorithm coupled with the penalty function method has been used for the constrained optimization of model parameters that result in low errors and high correlation coefficients. Springer-Verlag, 2010 Genetic algorithm nationallicence Hole-diameter nationallicence Projectile nationallicence Hypervelocity impact nationallicence Spherical projectile nationallicence c p , c t : Speed of sound in projectile and target materials, respectively nationallicence ρ p , ρ t : Density of projectile and target materials, respectively nationallicence D p : Diameter of spherical projectile nationallicence D h : Hole-diameter in target plate nationallicence T t : Target thickness nationallicence V : Velocity of strike of projectile nationallicence σ US : Shear strength of the target material nationallicence θ : Angle of strike or spray angle of projectile nationallicence Abbas H. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut Alsayed S. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut Almusallam T. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut Al-Salloum Y. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut Archive of Applied Mechanics Springer-Verlag 81/7(2011-07-01), 907-924 0939-1533 81:7<907 2011 81 419 https://doi.org/10.1007/s00419-010-0459-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00419-010-0459-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Abbas H. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Alsayed S. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Almusallam T. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut NATIONALLICENCE 700 1- Al-Salloum Y. Specialty Units for Safety and Preservation of Structures, College of Engineering, King Saud University, 11421, Riyadh, Saudi Arabia aut NATIONALLICENCE 773 0- Archive of Applied Mechanics Springer-Verlag 81/7(2011-07-01), 907-924 0939-1533 81:7<907 2011 81 419 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer