Macro-scale fracture analysis of isothermal composites: Theory and seven applications
| Autor: | John C. Slattery, Paul G. A. Cizmas |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Mechanical Engineering Composite number Energy balance 02 engineering and technology Epoxy 021001 nanoscience & nanotechnology Upper and lower bounds Isothermal process Strain energy 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Macroscopic scale visual_art visual_art.visual_art_medium Fracture (geology) General Materials Science Composite material 0210 nano-technology |
| Zdroj: | Engineering Fracture Mechanics. 163:366-380 |
| ISSN: | 0013-7944 |
| DOI: | 10.1016/j.engfracmech.2016.06.003 |
| Popis: | Starting with the macroscopic energy balance and the macroscopic entropy inequality, a lower bound is derived for the critical strain energy at which an isothermal composite or multiphase material fractures or fails. It relates the work done on the body, or the strain energy created in the body, to the new fracture surface area created. No assumption is made about the number or configurations of these fractures. Using previously published experimental observations by others, seven examples are developed to demonstrate how this inequality can be used to calculate bounds that can be compared with experimental observations. Six involve carbon fiber/epoxy aerospace laminates, and one an oil/gas producing sandstone. No adjustable parameters or history matching are employed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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