Syntactic foam core metal matrix sandwich composite under bending conditions

Mohammed Yaseer Omar; Chongchen Xiang; Nikhil Gupta; Oliver M. Strbik; Kyu Cho

doi:10.1016/j.matdes.2015.07.127

Syntactic foam core metal matrix sandwich composite under bending conditions

Mohammed Yaseer Omar, Chongchen Xiang, Nikhil Gupta, Oliver M. Strbik, Kyu Cho

Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

The present work aims at characterizing a metal matrix syntactic foam core sandwich composite under three-point bending conditions. The sandwich comprises alumina hollow particle reinforced A356 alloy syntactic foam with carbon fabric skins. Crack initiation in the tensile side of the specimen causing failure of the skin, followed by rapid failure of the core in the direction applied load, is observed as the failure mechanism. Crack propagation through the alumina particles is observed in the failed specimens instead of interfacial failure. The average maximum strength, flexural strain and stiffness were measured as 91.2 ± 5.6. MPa, 0.49 ± 0.06% and 20.6 ± 0.7. GPa respectively. The collapse load is theoretically predicted using mechanics of sandwich beams. Experimental values show good agreement with theoretical predictions.

Original language	English (US)
Pages (from-to)	536-544
Number of pages	9
Journal	Materials and Design
Volume	86
DOIs	https://doi.org/10.1016/j.matdes.2015.07.127
State	Published - Dec 5 2015

Keywords

Flexural properties
Metal matrix composite
Sandwich composite
Syntactic foam

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matdes.2015.07.127

Cite this

@article{e34ef44c8b8f4956bc36c4f269a2d4b9,

title = "Syntactic foam core metal matrix sandwich composite under bending conditions",

abstract = "The present work aims at characterizing a metal matrix syntactic foam core sandwich composite under three-point bending conditions. The sandwich comprises alumina hollow particle reinforced A356 alloy syntactic foam with carbon fabric skins. Crack initiation in the tensile side of the specimen causing failure of the skin, followed by rapid failure of the core in the direction applied load, is observed as the failure mechanism. Crack propagation through the alumina particles is observed in the failed specimens instead of interfacial failure. The average maximum strength, flexural strain and stiffness were measured as 91.2 ± 5.6. MPa, 0.49 ± 0.06% and 20.6 ± 0.7. GPa respectively. The collapse load is theoretically predicted using mechanics of sandwich beams. Experimental values show good agreement with theoretical predictions.",

keywords = "Flexural properties, Metal matrix composite, Sandwich composite, Syntactic foam",

author = "Omar, {Mohammed Yaseer} and Chongchen Xiang and Nikhil Gupta and Strbik, {Oliver M.} and Kyu Cho",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = dec,

day = "5",

doi = "10.1016/j.matdes.2015.07.127",

language = "English (US)",

volume = "86",

pages = "536--544",

journal = "Materials and Design",

issn = "0264-1275",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Syntactic foam core metal matrix sandwich composite under bending conditions

AU - Omar, Mohammed Yaseer

AU - Xiang, Chongchen

AU - Gupta, Nikhil

AU - Strbik, Oliver M.

AU - Cho, Kyu

PY - 2015/12/5

Y1 - 2015/12/5

N2 - The present work aims at characterizing a metal matrix syntactic foam core sandwich composite under three-point bending conditions. The sandwich comprises alumina hollow particle reinforced A356 alloy syntactic foam with carbon fabric skins. Crack initiation in the tensile side of the specimen causing failure of the skin, followed by rapid failure of the core in the direction applied load, is observed as the failure mechanism. Crack propagation through the alumina particles is observed in the failed specimens instead of interfacial failure. The average maximum strength, flexural strain and stiffness were measured as 91.2 ± 5.6. MPa, 0.49 ± 0.06% and 20.6 ± 0.7. GPa respectively. The collapse load is theoretically predicted using mechanics of sandwich beams. Experimental values show good agreement with theoretical predictions.

AB - The present work aims at characterizing a metal matrix syntactic foam core sandwich composite under three-point bending conditions. The sandwich comprises alumina hollow particle reinforced A356 alloy syntactic foam with carbon fabric skins. Crack initiation in the tensile side of the specimen causing failure of the skin, followed by rapid failure of the core in the direction applied load, is observed as the failure mechanism. Crack propagation through the alumina particles is observed in the failed specimens instead of interfacial failure. The average maximum strength, flexural strain and stiffness were measured as 91.2 ± 5.6. MPa, 0.49 ± 0.06% and 20.6 ± 0.7. GPa respectively. The collapse load is theoretically predicted using mechanics of sandwich beams. Experimental values show good agreement with theoretical predictions.

KW - Flexural properties

KW - Metal matrix composite

KW - Sandwich composite

KW - Syntactic foam

UR - http://www.scopus.com/inward/record.url?scp=84942235546&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84942235546&partnerID=8YFLogxK

U2 - 10.1016/j.matdes.2015.07.127

DO - 10.1016/j.matdes.2015.07.127

M3 - Article

AN - SCOPUS:84942235546

SN - 0264-1275

VL - 86

SP - 536

EP - 544

JO - Materials and Design

JF - Materials and Design

ER -

Syntactic foam core metal matrix sandwich composite under bending conditions

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this