Bulletin of the American Physical Society
APS March Meeting 2018
Monday–Friday, March 5–9, 2018; Los Angeles, California
Session B48: Extreme Mechanical Instabilities, Defects, and Large Deformations I
11:15 AM–2:15 PM,
Monday, March 5, 2018
LACC Room: 510
Sponsoring Units: GSNP GSOFT
Chair: Efi Efrati, Weizmann Institute of Science
Abstract: B48.00003 : Material Symmetry and Conservation Laws
11:39 AM–11:51 AM
The balance of material momentum, also known as impulse or pseudomomentum, is an important concept in continuum mechanics whose significance and utility is not always apparent. For certain simple systems, this balance can also be derived as the projection of the linear momentum balance onto the material manifold. We will discuss this balance law and its association with the material symmetry of purely mechanical systems governed by an action. We will explore the implications of this concept in various areas, including the classification of planar rods, solution of partial constraint problems, and derivation of conserved quantities in ideal fluids.
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