eprintid: 12436 rev_number: 21 eprint_status: archive userid: 1903 dir: disk0/00/01/24/36 datestamp: 2012-08-14 08:56:56 lastmod: 2016-04-21 11:41:17 status_changed: 2012-08-14 08:56:56 type: conference_item metadata_visibility: show item_issues_count: 0 creators_name: García Orden, Juan Carlos creators_name: Romero Olleros, Ignacio creators_orcid: 0000-0002-9063-6584 creators_orcid: 0000-0003-0364-6969 title: Energy-Entropy-Momentum integration of discrete thermo-visco-elastic dynamics. ispublished: pub subjects: fisica keywords: Time integration, structure preservation, geometric integration, coupled problems, thermodynamics abstract: A novel time integration scheme is presented for the numerical solution of the dynamics of discrete systems consisting of point masses and thermo-visco-elastic springs. Even considering fully coupled constitutive laws for the elements, the obtained solutions strictly preserve the two laws of thermo dynamics and the symmetries of the continuum evolution equations. Moreover, the unconditional control over the energy and the entropy growth have the effect of stabilizing the numerical solution, allowing the use of larger time steps than those suitable for comparable implicit algorithms. Proofs for these claims are provided in the article as well as numerical examples that illustrate the performance of the method. date: 2011 date_type: published publisher: Instituto de Investigacion y Desenvolvimiento Tecnológico en Ciencias de Construcción, Universidad de Coimbra official_url: http://www.itecons.uc.pt/cmne2011/uk/introducao.htm full_text_status: public pres_type: paper place_of_pub: Coimbra, Portugal event_title: Congress on Numerical Methods in Engineering, CMNE|2011 event_location: Coimbra, Portugal event_dates: 14/06/2011 - 17/06/2011 event_type: conference institution: Industriales department: Mecanica2 refereed: TRUE book_title: Proceedings of the Congress on Numerical Methods in Engineering, CMNE|2011 rights: by-nc-nd citation: García Orden, Juan Carlos ORCID: https://orcid.org/0000-0002-9063-6584 and Romero Olleros, Ignacio ORCID: https://orcid.org/0000-0003-0364-6969 (2011). Energy-Entropy-Momentum integration of discrete thermo-visco-elastic dynamics.. In: "Congress on Numerical Methods in Engineering, CMNE|2011", 14/06/2011 - 17/06/2011, Coimbra, Portugal. document_url: https://oa.upm.es/12436/2/INVE_MEM_2011_104815.pdf