Premium
Effect of Rate Sensitivity on Structural Sandwich Plates with Sinusoidal Corrugated Cores
Author(s) -
Shi Yihai,
Zhao Pizhe,
Wu Peidong,
Lloyd David J.,
Embury J. David
Publication year - 2016
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201500604
Subject(s) - materials science , sensitivity (control systems) , composite material , structural engineering , core (optical fiber) , engineering , electronic engineering
A plane strain elastic–viscoplastic‐based finite element model is developed to simulate a composite system with sinusoidal corrugated cores under tensile loading conditions. Numerical study shows that the rate sensitivity in the reinforced core provides a positive impact on loading capacity, the necking strain retardation, and improvement in the ductility of a composite. By carefully selecting the reinforced sinusoidal core geometric parameters, extra margin can be gained in improving the uniform elongation without comprising the loading capacity of a composite system. For a given volume fraction of reinforced core, an optimized reinforcement arrangement is found to achieve an improved ductility for a plate with sinusoidal corrugated core.