Theoretical approach to predict transverse impact response of variable-stiffness curved composite plates

Abstract This research studies the low velocity impact behaviour of variable stiffness curved composite plates. Since variable thickness within composite structures is recognised as an important factor on the performance of the structures, significant mathematical modelling to predict the impact response of these types of structure is essential. Varying thicknesses of sections is widely found in aerospace and automotive composite sub structures. It has been observed that changing of geometry of these sections can vary the dynamic response of anisotropic composite structures under a range of monolithic and dynamic loading conditions. Here we have used first order shear deformation theory to predict the contact force history of curved composite plates and the same approach was used for variable thickness composite plates, which provides the main novelty of this research. It was shown that the model developed here is capable of successfully predicting the response of variable stiffness composite plates with a range of layups and geometry designs under impact loading conditions.

[1]  Gin Boay Chai,et al.  A review of low-velocity impact on sandwich structures , 2011 .

[2]  Xiong Zhang,et al.  Low-velocity impact responses of the stiffened composite laminated plates based on the progressive failure model and the layerwise/solid-elements method , 2014 .

[3]  R. Teti,et al.  Impact and post-impact behavior of foam core sandwich structures , 1994 .

[4]  Nguyen Dinh Duc,et al.  Corrigendum to “Nonlinear dynamic response of imperfect eccentrically stiffened FGM double curved shallow shells on elastic foundation” [Compos. Struct. 99 (2013) 88–96] , 2013 .

[5]  M. Hosseini,et al.  Low velocity transverse impact response of a composite sandwich plate subjected to a rigid blunted cylindrical impactor , 2014 .

[6]  S. Kapuria,et al.  Spectral finite element for wave propagation analysis of laminated composite curved beams using classical and first order shear deformation theories , 2015 .

[7]  H. Ghasemnejad,et al.  Charpy impact damage behaviour of single and multi-delaminated hybrid composite beam structures , 2010 .

[8]  Nguyen Dinh Duc,et al.  Nonlinear dynamic response of imperfect eccentrically stiffened FGM double curved shallow shells on elastic foundation , 2013 .

[9]  Siew Lok Toh,et al.  The elastic response of orthotropic laminated cylindrical shells to low-velocity impact , 1994 .

[10]  T. A. Anderson,et al.  An investigation of SDOF models for large mass impact on sandwich composites , 2005 .

[11]  M. Sadighi,et al.  Dynamic response of composite laminated beams under asynchronous/repeated low-velocity impacts of multiple masses , 2015 .

[12]  S.M.R. Khalili,et al.  Low-velocity impact response of doubly curved symmetric cross-ply laminated panel with embedded SMA wires , 2013 .

[13]  Kunigal N. Shivakumar,et al.  Prediction of low-velocity impact damage in thin circular laminates , 1985 .

[14]  K. Y. Lam,et al.  Effects of Structural Damping and Stiffness on Impact Response of Layered Structure , 2000 .

[15]  V. R. Soroush,et al.  To improve impact damage response of single and multi-delaminated FRP composites using natural Flax yarn , 2012 .