Interlaminar stress analysis of honeycomb sandwich panels based on the direct FE2 multiscale method with partitioned variable density RVE placement strategy

Damiao Wang, Wenjie Fan, Peiyuan Kan, Chang Yan, Fengyuan Song, Key Laboratory of Microwave Remote Sensing, National Space Science Center, Chinese Academy of Sciences, School of Aeronautics and Astronautics, University of Chinese Academy of Sciences, School of Astronomy and Space Science, University of Chinese Academy of Sciences, School of Aeronautical Mechatronic Engineering, Chongqing Aerospace Polytechnic

Journal of Sandwich Structures & Materials

Published online on July 30, 2026

Abstract

Journal of Sandwich Structures & Materials, Ahead of Print.
The structural strength and failure behavior of honeycomb sandwich panels depend strongly on the mesoscale stress state. Facesheet interlaminar stresses and core shear stresses are key stress components governing facesheet delamination and core shear ...