Wrinkling Behavior of a Woven Thermoplastic Composite Material
| Autor: | Shankar Kalyanasundaram, Lu Chen |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Polypropylene
0209 industrial biotechnology Digital image correlation Materials science Mechanical Engineering Composite number Material system 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics chemistry.chemical_compound 020901 industrial engineering & automation chemistry Mechanics of Materials General Materials Science Composite material A fibers 0210 nano-technology Thermoplastic composites |
| Zdroj: | Materials Science Forum. 893:26-30 |
| ISSN: | 1662-9752 |
| Popis: | This article examines the prediction of wrinkling initiation in self-reinforced thermoplastic composite materials for potential application in rapid forming of this class of materials. Whilst most of recent researches concentrate on examining metallic wrinkling behavior, this article aims to introduce a wrinkling indicator for composite sheet. The material system involved in the study is a self-reinforced polypropylene woven composite with a fiber orientation of 0°/90° along the warp and weft directions. Square specimens were stretched uniaxially along diagonal direction until the onset of wrinkling. It is observed that when the wrinkling occurs, strain increment ratio exhibits an abrupt change. This fundamental observation leads to the prediction of onset of wrinkling by using abrupt changes in strain increment ratio as a metric. |
| Databáze: | OpenAIRE |
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