Murdoch, A. Ian
(2010)
*On molecular modelling and continuum concepts.*
Journal of Elasticity, 100 (1-2).
pp. 33-61.
ISSN 0374-3535

## Abstract

Continuum concepts and field values are related to local (scale-dependent) spacetime atomistic averages. Spatial averaging is effected by both weighting function and cellular localisation procedures, and resulting forms of linear momentum balance are compared. The former yields a local balance directly, with several candidate interaction stress fields. The latter results in a global balance involving a traction field expressible in terms of an interaction stress tensor field. In both approaches the Cauchy stress incorporates distinct interaction and thermokinetic contributions. Inter alia are addressed physically-distinguished choices of weighting function; the scale-dependence of the boundary of a body, its motion and material points thereof; physical interpretations of various candidate interaction stress tensors; temporal averaging and material systems whose content changes with time; and the possible relevance of the latter to investigating a molecular context for configurational forces.

Item type: | Article |
---|---|

ID code: | 29190 |

Keywords: | localisation procedures , interaction stress, stress, weighting function, speacetime avergaes, scale-dependent interpretation, Probabilities. Mathematical statistics, Mechanics of Materials, Materials Science(all), Mechanical Engineering |

Subjects: | Science > Mathematics > Probabilities. Mathematical statistics |

Department: | Faculty of Science > Mathematics and Statistics > Mathematics |

Depositing user: | Pure Administrator |

Date Deposited: | 07 Mar 2011 23:27 |

Last modified: | 21 May 2015 13:03 |

URI: | http://strathprints.strath.ac.uk/id/eprint/29190 |

### Actions (login required)

View Item |