Sequential Similitude for Buckling Response of Impacted Composite Plates

علوم کاربردی و محاسباتی در مکانیک

Article 1, Volume 22, Issue 1, July 2010, Pages 1-16   

Document Type: Original Article

DOI: 10.22067/fum-mech.v22i1.9017

Authors

mahmod Shokrieh^* ; abas Askari

Abstract

In establishing of similarity conditions, dimensional analysis and direct use of governing equations are two existing major methods. These methods are frequently used in elastic domains. In this study, both methods are applied in inelastic domains. Their applicability is illustrated through the study of buckling response of impacted composite plates by using the progressive damage modeling technique. In order to establish the similarity conditions between impacted plates under buckling loading, similitude theory is applied in two following stages. First similarity condition is established for impacted plates. Then the similarity condition between impacted plates under buckling loading is established. For development of similarity conditions in impact loading, dimensional analysis is used while in buckling loading governing equations are applied directly. This method is called “Sequential Similitude”. In the next stage, progressive damage modeling was conducted on scaled down models to verify the accuracy of predicted results from similitude equations. Results show the validity of this procedure for simulation with acceptable errors in predicted results.

References