Stress-Rupture of S-Glass Epoxy Multifilament Strands
| Autor: | T.T. Chiao, R.L. Moore |
|---|---|
| Rok vydání: | 1971 |
| Předmět: |
Stress rupture
Materials science business.industry Mechanical Engineering Glass epoxy Epoxy matrix Epoxy Structural engineering Stress (mechanics) Mechanics of Materials visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Fiber Composite material business Tensile testing |
| Zdroj: | Journal of Composite Materials. 5:2-11 |
| ISSN: | 1530-793X 0021-9983 |
| DOI: | 10.1177/002199837100500101 |
| Popis: | The stress-rupture behavior of filamentary composites is of great concern in many long-term applications. We have begun a program to collect reliable stress-rupture data on very simple composites such as various fiber strands impregnated with an epoxy matrix. We de veloped a tensile test method for fibers, designed a stress-rupture test apparatus and verified its performance, and installed 400 test apparatuses in a controlled-environment building. This paper dis cusses the data collected to date on single-end S-glass/epoxy strands at three load levels: 83.8, 74.5, and 65.2% (based on the average breaking load). Using at least 100 specimens at each load level, we found that the time-to-break values consistently varied by a factor of 1000. The data clearly indicate a shorter life at higher loads. We are collecting data at three lower load levels: 50, 40, 33%. We are attempting to characterize the distribution function of the stress- rupture life but are not yet able to draw any conclusions. |
| Databáze: | OpenAIRE |
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