Mode II delamination of woven mengkuang fiber/woven silk laminated hybrid composites

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Abstract

The effects of hybridization between woven mengkuang fiber/woven silk on mode II delamination (GIIC) of laminated composites were investigated by performing the end-notched flexure (ENF) test. Various configurations of woven mengkuang/woven silk layers were considered. The composite samples were prepared using hand lay-up, along with the cold press method. After fabrication, the test specimens were subjected to end-notch flexure testing for mode II delamination based on ASTM D790-03. During the test, the crack propagation was observed; the sudden drop in load meant that the sample experienced crack growth. The configuration of woven silk in between the pre-crack provided an excellent improvement in GIIC. Further addition of woven silk layers for similar configuration also yielded significant improvements in the GIIC result. The rate of critical strain energy release increases with an increase in number of woven silk layers for the configuration of silk in between the pre-crack. The scanning electronic microscopy (SEM) result shows the cross-section of the samples. The study also demonstrated that surface interaction between woven silk/epoxy/woven silk was better than woven mengkuang/epoxy/woven mengkuang lamination.

Original languageEnglish
Pages (from-to)374-380
Number of pages7
JournalMaterialpruefung/Materials Testing
Volume58
Issue number4
DOIs
Publication statusPublished - 2016

Fingerprint

Silk
Delamination
Fibers
Composite materials
Crack propagation
Cracks
Laminated composites
Strain energy
Microscopic examination
Scanning
Fabrication
Testing

Keywords

  • Crack propagation
  • End-notched flexure
  • Hybrid laminated composites
  • Woven mengkuang
  • Woven silk

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

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title = "Mode II delamination of woven mengkuang fiber/woven silk laminated hybrid composites",
abstract = "The effects of hybridization between woven mengkuang fiber/woven silk on mode II delamination (GIIC) of laminated composites were investigated by performing the end-notched flexure (ENF) test. Various configurations of woven mengkuang/woven silk layers were considered. The composite samples were prepared using hand lay-up, along with the cold press method. After fabrication, the test specimens were subjected to end-notch flexure testing for mode II delamination based on ASTM D790-03. During the test, the crack propagation was observed; the sudden drop in load meant that the sample experienced crack growth. The configuration of woven silk in between the pre-crack provided an excellent improvement in GIIC. Further addition of woven silk layers for similar configuration also yielded significant improvements in the GIIC result. The rate of critical strain energy release increases with an increase in number of woven silk layers for the configuration of silk in between the pre-crack. The scanning electronic microscopy (SEM) result shows the cross-section of the samples. The study also demonstrated that surface interaction between woven silk/epoxy/woven silk was better than woven mengkuang/epoxy/woven mengkuang lamination.",
keywords = "Crack propagation, End-notched flexure, Hybrid laminated composites, Woven mengkuang, Woven silk",
author = "Husin, {Mohd Azwan} and Rozli Zulkifli and Shahrum Abdullah and {Wan Daud}, {Wan Ramli}",
year = "2016",
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journal = "Materialpruefung/Materials Testing",
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AB - The effects of hybridization between woven mengkuang fiber/woven silk on mode II delamination (GIIC) of laminated composites were investigated by performing the end-notched flexure (ENF) test. Various configurations of woven mengkuang/woven silk layers were considered. The composite samples were prepared using hand lay-up, along with the cold press method. After fabrication, the test specimens were subjected to end-notch flexure testing for mode II delamination based on ASTM D790-03. During the test, the crack propagation was observed; the sudden drop in load meant that the sample experienced crack growth. The configuration of woven silk in between the pre-crack provided an excellent improvement in GIIC. Further addition of woven silk layers for similar configuration also yielded significant improvements in the GIIC result. The rate of critical strain energy release increases with an increase in number of woven silk layers for the configuration of silk in between the pre-crack. The scanning electronic microscopy (SEM) result shows the cross-section of the samples. The study also demonstrated that surface interaction between woven silk/epoxy/woven silk was better than woven mengkuang/epoxy/woven mengkuang lamination.

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