Abstract #3549

Variation in strain characteristics for multiscale multi-physics models of a 1.5T conduction cooled MRI system based on a 36 filament MgB2 composite wire

Abdullah Al Amin¹, Tanvir Baig², Robert J. Deissler ², David Doll³, Michael Tomsic³, Ozan Akkus¹, and Michael Martens²

¹Department of Mechanical Engineering, Case Western Reserve University, Cleveland, OH, United States, ²Department of Physics, Case Western Reserve University, Cleveland, OH, United States, ³Hyper Tech Research Inc., Columbus, OH, United States

A higher field (>1.5T) MRI magnet system is usually constructed with composite superconducting wire. Usually, modeling of the strain development of this magnet system requires approximation of the material property of composite Magnesium diboride wire using the simple rule of mixture (ROM). The Rule of Mixture (ROM) is a straight forward and simple technique but the underestimation of the strain development may affect the accuracy of the analysis. This study compares the variation in hoop strain development as three different numerical homogenization methods are employed to estimate the material property of the composite wire.

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