Article details

Title: Low Velocity Impact on a Sandwich Panel with an Irregular Honeycomb Shaped Foam Core
Author(s): Oana Mocian   Dragos-Alexandru Apostol   Dan-Mihai Constantinescu         

Abstract: Sandwich panels are increasingly being used in many different applications such as aerospace, automotive or military, mainly due to their high strength-to-weight ratio and impact and damage resistance. Understanding the behavior of these sandwich structures to low speed impact damage is of major importance when referring to both damage resistance and damage tolerance. Energy absorption criteria represent a way to asses crashworthiness of sandwich panels that are subjected to low velocity impact either by studying the core material or the overall structure. The following paper analyzes a metal sheet sandwich panel with an irregular honeycomb shaped polyurethane foam core by using three different impact velocities and three different foam core densities.

Keywords: Energy absorption, foam core, honeycomb, low velocity impact, sandwich panel.


[1] S. PASHAH, M. MASSENZIO, E. JACQUELIN – Prediction of Structural Response for Low Velocity Impact, International Journal of Impact Engineering, Vol. 35, No. 2, pp. 119-132, Feb. 2008
[2] D. ZHANG, Y. SUN, L. CHEN, N. PAN – A Comparative Study on Low-Velocity Impact Response of Fabric Composite Laminates, Materials and Design, Vol. 50, pp. 750-756, Sep. 2013
[3] B.M. ICTEN, B.G. KIRAL, M.E. DENIZ – – Impactor Diameter Effect on Low Velocity Impact Response of Woven Glass Epoxy Composite Plates, Composites, Part B: Engineering, Vol. 50, pp. 325-332, Jul. 2013
[4] Z. ASAEE, S. SHADLOU, F. TAHERI – Low-Velocity Impact Response of Fiberglass/Magnesium FMLs with a New 3D Fiberglass Fabric, Composite Structures, Vol. 122, pp. 155-165, Apr. 2015
[5] S.M.R. KHALILI, M. SOROUSH, A. DAVAR, O. RAHMANI – Finite Element Modeling of Low-Velocity Impact on Laminated Composite Plates and Cylindrical Shells, Composite Structures, Vol. 93, No. 5, pp. 1363-1375, Apr. 2011
[6] R. MOHMMED, F. ZHANG, B. SUN, B. GU – Finite Element Analyses of Low-Velocity Impact Damage of Foam Sandwiches Composites with Different Ply Angles Face Sheets, Materials and Design, Vol. 47, pp. 189-199, 2013
[7] I. IVANEZ, C. SANTIUSTE, S. SANCHEZ-SAEZ – Numerical Modeling of Low-Velocity Impact on Honeycomb Cored Sandwich Beams with Composite Face-Sheets, Proc. of the 16th International Conference on Composite Structures, Porto, Portugal, Jun. 28-30, 2011