Bosi, F;
Misseroni, D;
Dal Corso, F;
Bigoni, D;
(2014)
An elastica arm scale.
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
, 470
(2169)
10.1098/rspa.2014.0232.
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Abstract
The concept of a ‘deformable arm scale’ (completely different from a traditional rigid arm balance) is theoretically introduced and experimentally validated. The idea is not intuitive, but is the result of nonlinear equilibrium kinematics of rods inducing configurational forces, so that deflection of the arms becomes necessary for equilibrium, which would be impossible for a rigid system. In particular, the rigid arms of usual scales are replaced by a flexible elastic lamina, free to slide in a frictionless and inclined sliding sleeve, which can reach a unique equilibrium configuration when two vertical dead loads are applied. Prototypes designed to demonstrate the feasibility of the system show a high accuracy in the measurement of load within a certain range of use. Finally, we show that the presented results are strongly related to snaking of confined beams, with implications for locomotion of serpents, plumbing and smart oil drilling.
| Type: | Article |
|---|---|
| Title: | An elastica arm scale |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1098/rspa.2014.0232 |
| Publisher version: | https://doi.org/10.1098/rspa.2014.0232 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10094061 |
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