Literature DB >> 2020179

A continuum model of elephant trunks.

J F Wilson1, U Mahajan, S A Wainwright, L J Croner.   

Abstract

A continuum model is presented that relates the trunk parameters of loading, geometry, and muscle structure to the necessary conditions of static equilibrium. Linear theory for stress-strain behavior is used to describe an elephant trunk for an incremental displacement as the animal slowly lifts a weight at the trunk tip. With this analysis and experimental values for the trunk parameters, the apparent trunk stiffness Ea is estimated for the living animal. For an Asian elephant with a maximum compression strain of 33 percent, Ea is of the order of 10(6) N/m2. The continuum model is quite general and may be applied to similar nonskeletal appendages and bodies of other animals.

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Year:  1991        PMID： 2020179     DOI： 10.1115/1.2894088

Source DB:  PubMed          Journal:  J Biomech Eng        ISSN： 0148-0731            Impact factor:   2.097


  7 in total

1.  Derivation of a finite-element model of lingual deformation during swallowing from the mechanics of mesoscale myofiber tracts obtained by MRI.

Authors:  Srboljub M Mijailovich; Boban Stojanovic; Milos Kojic; Alvin Liang; Van J Wedeen; Richard J Gilbert
Journal:  J Appl Physiol (1985)       Date:  2010-08-05

2.  Mechanical reconfiguration mediates swallowing and rejection in Aplysia californica.

Authors:  Valerie A Novakovic; Gregory P Sutton; David M Neustadter; Randall D Beer; Hillel J Chiel
Journal:  J Comp Physiol A Neuroethol Sens Neural Behav Physiol       Date:  2006-04-04       Impact factor: 1.836

3.  Patterns of arm muscle activation involved in octopus reaching movements.

Authors:  Y Gutfreund; T Flash; G Fiorito; B Hochner
Journal:  J Neurosci       Date:  1998-08-01       Impact factor: 6.167

Review 4.  Acoustic allometry and vocal learning in mammals.

Authors:  Maxime Garcia; Andrea Ravignani
Journal:  Biol Lett       Date:  2020-07-08       Impact factor: 3.703

5.  Skin wrinkles and folds enable asymmetric stretch in the elephant trunk.

Authors:  Andrew K Schulz; Madeline Boyle; Colin Boyle; Sophia Sordilla; Catalina Rincon; Scott Hooper; Catie Aubuchon; Joy S Reidenberg; Claire Higgins; David L Hu
Journal:  Proc Natl Acad Sci U S A       Date:  2022-07-18       Impact factor: 12.779

6.  Elephant trunks form joints to squeeze together small objects.

Authors:  Jianing Wu; Yichao Zhao; Yunshu Zhang; David Shumate; Stephanie Braccini Slade; Scott V Franklin; David L Hu
Journal:  J R Soc Interface       Date:  2018-10-24       Impact factor: 4.118

7.  The relationship between distal trunk morphology and object grasping in the African savannah elephant (Loxodonta africana).

Authors:  Julie Soppelsa; Emmanuelle Pouydebat; Maëlle Lefeuvre; Baptiste Mulot; Céline Houssin; Raphaël Cornette
Journal:  PeerJ       Date:  2022-03-28       Impact factor: 2.984
  7 in total

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