NDLI: Dynamic Thermo-mechanical Response of Hastelloy X to Shock Wave Loading

Content Provider	Springer Nature Link
Author	Abotula, S. Heeder, N. Chona, R. Shukla, A.
Copyright Year	2013
Abstract	A comprehensive series of experiments were conducted to study the dynamic response of rectangular Hastelloy X plates at room and elevated temperatures when subjected to shock wave loading. A shock tube apparatus, capable of testing materials at temperatures up to 900 °C, was developed and utilized to generate the shock loading. Propane gas was used as the heating source to effectively provide an extreme thermal environment. The heating system is both robust and capable of providing uniform heating during shock loading. A cooling system was also implemented to prevent the shock tube from reaching high temperatures. High-speed photography coupled with the optical technique of Digital Image Correlation (DIC) was used to obtain the real-time 3D deformation of the Hastelloy X plates under shock wave loading. To eliminate the influence of thermal radiation at high temperatures, the DIC technique was used in conjunction with bandpass optical filters and a high-intensity light source to obtain the full-field deformation. In addition, a high-speed camera was utilized to record the side-view deformation images and this information was used to validate the data obtained from the high temperature 3D stereovision DIC technique. The results showed that uniform heating of the specimen was consistently achieved with the designed heating system. For the same applied incident pressure, the highest impulse was imparted to the specimen at room temperature. As a consequence of temperature-dependent material properties, the specimen demonstrated an increasing trend in back-face (nozzle side) deflection and in-plane strain with increasing temperature.
Starting Page	279
Ending Page	291
Page Count	13
File Format	PDF
ISSN	00144851
Journal	Experimental Mechanics
Volume Number	54
Issue Number	2
e-ISSN	17412765
Language	English
Publisher	Springer US
Publisher Date	2013-09-18
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Hastelloy X Thermo-mechanical loading Extreme environments Shock tube High temperature 3D DIC Continuum Mechanics and Mechanics of Materials Characterization and Evaluation of Materials Optics, Optoelectronics, Plasmonics and Optical Devices Structural Mechanics Vibration, Dynamical Systems, Control Mechanics
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering Aerospace Engineering

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