eprintid: 59600 rev_number: 11 eprint_status: archive userid: 11441 dir: disk0/00/05/96/00 datestamp: 2012-02-01 16:09:22 lastmod: 2021-09-22 19:27:30 status_changed: 2012-02-01 16:09:22 type: article metadata_visibility: show item_issues_count: 0 creators_name: Dunwoody, J. creators_name: Ogden, R.W. creators_orcid: 0000-0002-7002-7028 title: On the thermodynamic stability of elastic heat-conducting solids subject to a deformation--temperature constraint ispublished: pub divisions: 30501000 abstract: In this paper the thermoelastic stability of a three-dimensional body subject to a deformation-temperature constraint is examined with reference to Ericksen's [7] theory for unconstrained materials. It is shown that sufficient conditions for infinitesimal stability are unattainable for finite bodies if the constraint is temperature dependent. This general result is illustrated by considering the infinitesimal dynamic stability of a slab, initially at rest at uniform temperature. in respect of one-dimensional thermomechanical perturbations satisfying 'dead loading' boundary conditions on its parallel faces. Results obtained by Manacorda [12] are extended to show that the slab is thermomechanically (linearly) unstable if the trace of the infinitesimal strain tensor is dependent on temperature. In the light of these results, it is shown that the instability can be removed on the basis of the conjecture that the constraint be independent of temperature, or equivalently that the entropy is uniquely determined, The conjecture is justified by considering a limiting form of a theory for almost constrained rubberlike elastic solids. date: 2002-06 date_type: published id_number: 10.1177/108128602027736 uniqueid: glaseprints:2002-59600 scopus_impact: 6 scopus_cluster: 2-s2.0-0036613034 scopus_datestamp: 2013-05-23 05:04:30 wos_impact: 6 wos_cluster: WOS:000176882100004 wos_datestamp: 2013-10-25 08:26:07 full_text_status: none publication: Mathematics and Mechanics of Solids volume: 7 number: 3 pagerange: 285-306 refereed: TRUE issn: 1081-2865 hoa_compliant: 305 hoa_date_pub: 2002-06 hoa_exclude: FALSE hoa_gold: FALSE citation: Dunwoody, J. and Ogden, R.W. (2002) On the thermodynamic stability of elastic heat-conducting solids subject to a deformation--temperature constraint. Mathematics and Mechanics of Solids , 7(3), pp. 285-306. (doi: 10.1177/108128602027736 )