Experimental measurements of pressures exerted by bimetallic shells due to thermal stress

POSTER

Abstract

We present measurements of the~relationship~between~volume-displacement and pressure for bimetallic shells through a broad range of temperatures. Bimetallic shells were fixed in a sealed chamber and the pressures exerted by the shells were measured mechanically as temperature was varied. We observed hysteresis behavior between the concave and convex equilibrium states. These results can be used to predict the work output from a bimetallic heat engine where the disk acts as a diaphragm. .

Authors

  • Melanie Goble

    Cal Poly - San Luis Obispo

  • C. Jennings

    Stanford University, None, none, Univ of California - Merced, Dr. Remeis-Sternwarte & ECAP, Universität Erlangen-Nürnberg, NASA GSFC, Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory, Goddard Space Flight Center-NASA, University of Nevada, Reno, Cal Poly - San Luis Obispo, Victoria University of Wellington, Wellington 6021, New Zealand, Penn State, Micron School of Materials Science & Engineering, Department of Physics, Boise State University, Autonomous University of Zacatecas, Micron School of Materials Science & Engineering, Boise State University, Naval Research Laboratory, Independent Researcher, Cornell University, UC Santa Cruz, Middle Georgia State University, University of California, Merced, Stanford University, California, Institute of Medical Biology, Singapore; Stanford University, California, University of California Merced, Kent State University, ORNL, UC Berkeley, LLNL, Physics, Hokkaido University, Japan, Physics, UC San Diego, Physics, California State University, Fresno, Department of Physics and Astronomy, California State University Long Beach, Long Beach, California 90840, USA, Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA, Department of Physics, Southern University of Science and Technology, Shenzen 518055, China, Virginia Tech, Sotera Defense Solutions, Inc., Univ of California - Santa Cruz, College of Staten Island, UC Irvine, Naval Research Laboratory, Washington, DC 20375, Virginia Tech, Blacksburg, VA 24061, University of California, Merced CA 95343

  • Nathan Heston

    California Polytechnic State University, San Luis Obispo, Cal Poly - San Luis Obispo

  • Matthew Moelter

    California Polytechnic State University, San Luis Obispo, Cal Poly - San Luis Obispo