A novel dynamic opto-thermo-mechanical stress testing device 2: In situ stretching process of polymeric fibers
| Autor: | Mohammed A. El-Bakary, T.Z.N. Sokkar, K.A. El-Farahaty, F. E. Hanash, M.I. Raslan |
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| Rok vydání: | 2018 |
| Předmět: |
Histology
Microscope Materials science Stress–strain curve 030206 dentistry 02 engineering and technology 021001 nanoscience & nanotechnology Interference microscopy law.invention Stress (mechanics) 03 medical and health sciences Medical Laboratory Technology 0302 clinical medicine law Fracture (geology) Fiber Anatomy Composite material Deformation (engineering) 0210 nano-technology Instrumentation Necking |
| Zdroj: | Microscopy research and technique. 81(11) |
| ISSN: | 1097-0029 |
| Popis: | In this article, we used the opto-mechanical stress testing-device to stretch a monofilament of isotactic Polypropylene, iPP, fibers. This device was used to obtain the mechanical behavior of these fibers by measuring the complete stress-strain curves at different stretching conditions. Using this device, the different regions of iPP fiber where the mechanical deformation takes place was characterized, including the necking region and fracture initiation process. The obtained mechanical behavior of iPP fibers was correlated to the variations of different optical parameters by attaching the device with the Pluta polarizing interference microscope. This microscope and the stress device allowed us to simultaneously measure the optical parameters and stress-strain data during stretching process at different stretching speeds. These data provide us with comprehensive information on the opto-mechanical behavior of polymeric fibers. Interferograms are included for illustration. The opto-mechanical stress testing-device was used to stretch a monofilament of, iPP, fibers. The mechanical deformation takes place was characterized, including the necking region and fracture initiation process at different stretching speeds. |
| Databáze: | OpenAIRE |
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