Bending performance of a sandwich beam with sheet metal pyramidal core

被引：5

作者：

Iftimiciuc, Mihaela ^{[1
]}

Lache, Simona ^{[1
]}

Vandepitte, Dirk ^{[2
]}

Velea, Marian Nicolae ^{[1
]}

机构：

[1] Transilvania Univ Brasov, Dept Mech Engn, Brasov, Romania

[2] Katholieke Univ Leuven, Dept Mech Engn, Leuven, Belgium

来源：

MATERIALS TODAY COMMUNICATIONS | 2022年 / 31卷

关键词：

Pyramidal cellular core; Four-point bending; Mechanical expansion; Finite element model; LATTICE TRUSS STRUCTURES; BEHAVIOR;

D O I：

10.1016/j.mtcomm.2022.103490

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Metallic sandwich structures with pyramidal cellular cores have proven to be highly effective in the industry of advanced lightweight materials thanks to their high strength-to-weight ratios. This paper presents the investigation of the bending performance of a sandwich structure based on a novel pyramidal cellular core. The effective bending and shear stiffness are investigated using numerical and experimental approaches. Furthermore, the finite element model created for the four-point bending scenario is in good agreement with the experimental one and can be subsequently used for further product development. This represents a cost-efficient method used for structural optimisation and may lead to improved mechanical properties and higher lightweight capabilities. The study includes a comparison to other existing periodic core topologies which shows that the investigated pyramidal structure has high potential to be used for the construction of sandwich panel assemblies.

引用

页数：10

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