ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
In the current paper, a macroscopic differential model is constructed on the basis of theLandau theory of the first order phase transformation. Hysteresis loops and butterfly-shapedbehaviors are modeled as a consequence of polarizations and orientation switchings. A non-convexfree energy function is constructed to characterize different polarization orientations in thematerials. Polarizations and orientation switchings are modeled by formulating the system stateswitching from one equilibrium state to another, as differential equations. The hysteresis loops andbutterfly-shaped behaviors are successfully modeled. Comparison of the model results with theexperimental counterpart is also presented
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.47-50.65.pdf
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