DataVXJournal of Sandwich Structures & MaterialsPaper
journal article·2008-01Open access

Numerical Study of Fractured Sandwich Composites under Flexural Loading

E.E. Theotokoglou, D. Hortis, L.A. Carlsson, H. Mahfuz

Journal of Sandwich Structures & Materials· Volume 10· Issue 1
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Source abstract

Abstract

Fatigue crack growth of foam core sandwich beams loaded in flexure has been investigated numerically. Extensive fatigue data from foam core sandwich composites under flexural loading were analyzed. A static finite element analysis is adopted for the uncracked sandwich beam in order to predict crack initiation positions. A face/core debond parallel to the beam axis is considered in accordance with experimental data. A static two-dimensional finite element analysis of the cracked sandwich beam is accounted for the evaluation of stress intensity factors at the crack tips investigating the crack growth behavior. In this way it is succeeded in making a significant contribution to understand the initiation and propagation of a fatigue crack in the foam core of sandwich beams loaded by flexural loading.
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Research context

Composites

OpenAlex topics: Mechanical Behavior of Composites · Cellular and Composite Structures · Mechanical stress and fatigue analysis

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Faculty of Applied Sciences, Department of Mechanics-Lab. of Strength Materials, The National Technical University of Athens Zographou Campus, Theocaris Bld., GR-0157 73, Athens, Greece,

Faculty of Applied Sciences, Department of Mechanics-Lab. of Strength Materials, The National Technical University of Athens Zographou Campus, Theocaris Bld., GR-0157 73, Athens, Greece

Department of Mechanical Engineering Florida Atlantic University, Boca Raton, FL 33431, USA

Department of Ocean Engineering Florida Atlantic University, Boca Raton, FL 33431, USA

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