TY - BOOK AU - Hany Sabry Ayoub Mohamed AU - Hussam Eldin H. Hassan , AU - Sherif A. Khairy , TI - Investigation of tungsten elasticity at elevated temperatures using laser shadow vibrometry / PY - 2020/// CY - Cairo : PB - Hany Sabry Ayoub Mohamed , KW - Dynamic elasticity KW - Elevated temperatures KW - Tungsten N1 - Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Physics; Issued also as CD N2 - This thesis introduces the design and construction of a novel low-cost laser vibrometry based on shadowgraphy, used to investigate the dynamic elasticity of tungsten at elevated temperatures. For this purpose, a filament sample was subjected to impulse excitation technique. The system was exclusively successful in measuring the dynamic elastic moduli of commercial-grade tungsten from room temperature up to near the melting point. Experimental conditions and parameters were studied to achieve best measurement accuracy and good matching between measured and published data ER -