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configurational forces

Partial constraint singularities in elastic rods

We present a unified classical treatment of partially constrained elastic rods. Partial constraints often entail singularities in both shapes and reactions. Our approach encompasses both sleeve and adhesion problems, and provides simple and unambiguous derivations of counterintuitive results in the literature. Relationships between reaction forces and moments, geometry, and adhesion energies follow from the balance of energy during quasistatic motion. We also relate our approach to the configurational balance of material momentum and the concept of a driving traction.

Davide Bigoni's picture

Torsional locomotion

Can a torque induce longitudinal motion of an elastic rod?

See the explanation and an example of use of the 'torsional gun' at http://www.ing.unitn.it/~bigoni/torsional_locomotion.html

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Davide Bigoni's picture

Elastica arm scale

Can configurational forces be exploited to design a new type of scale?

See the explanation and an example of use at http://www.ing.unitn.it/~bigoni/elasticscale.html

If you're having trouble playing videos on YouTube, click here to watch it.

 

Massimiliano Gei's picture

4th International Symposium on Defect and Material Mechanics (ISDMM09), TRENTO, July 6th-9th, 2009

The Solid Mechanics group of the University of Trento (Italy) announces ISDMM09, the fourth international meeting devoted to Mechanics of Material Forces, following the workshops held at Kaiserslautern (2003), Symi (2005) and Aussois (2007), and will be held in the alpine city of Trento, Italy, from July 6th to 9th, 2009.

Abstract submission: January 31, 2009

More info: http://portale.unitn.it/events/isdmm09

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