Evaluation of experimental flexural behaviour and numerical parameters determination of bare foam and different types of foam filled sandwich panels

IF 3.9 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2025-03-19 DOI:10.1016/j.istruc.2025.108708

Sanjeev Saxena , Anshul Badkul

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引用次数: 0

Abstract

In the present study bare foam and three types (bondtite bonded, araldite bonded and metallic bonded) of metallic foam-filled sandwich panels were fabricated and experimentally tested under bending. The flexural strength, energy dissipation upto-maximum load, and maximum energy dissipation capacity of metallic bonded sandwich panel is far better than polymeric bonded sandwich panels. The magnitude of delamination is minimum in case of metallic bonded sandwich panels. The experimentally obtained flexural behaviour of bare foam and metallic foam-filled sandwich panels were also predicted using two-dimensional FEM models. Cohesive zone material modelling and cohesive elements were used to define delamination behaviour in-between the foam core and the two face sheets of sandwich panels. The adhesion properties of adhesive materials (bondtite, araldite, and metallic alloy) were experimentally determined using elcometer pull-off tests and it is used to define traction-separation laws in the modelling of delamination behaviour. The proposed numerical methodology is able to predict reasonably well the experimental flexural behaviour of foam-filled sandwich panels.

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来源期刊

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.