Session Details
MS17-3: Smart and Active Materials: Experiments, Modelling, and Simulation (Ganzes Minisymposium anzeigen)
Thursday, 12. October 2017; 16:00 - 18:00 Uhr in Raum 7.22
Sitzungsleitung: Krishnendu Haldar
16:00
A Novel Parameter Identification Toolbox for the Selection of Hyperelastic Constitutive Models from Experimental Data
Hüsnü Dal (Middle East Technical University), Yashar Badienia (Middle East Technical University), Kemal Açıkgöz (Middle East Technical University), Funda Aksu Denli (Middle East Technical University)
Kurzfassung:
This paper presents a novel parameter identification toolbox based on various multi-objective optimization strategies for the selection of the best constitutive models from a given set of homogeneous experiments. The toolbox aims at providing an objective model selection procedure along with the material parameters for the rubber compound at hand. To this end, we utilize the multi-objective optimization using genetic algorithm of MATLAB. For the validation purposes, we use 24 constitutive laws.
A Novel Parameter Identification Toolbox for the Selection of Hyperelastic Constitutive Models from Experimental Data
Hüsnü Dal (Middle East Technical University), Yashar Badienia (Middle East Technical University), Kemal Açıkgöz (Middle East Technical University), Funda Aksu Denli (Middle East Technical University)
Kurzfassung:
This paper presents a novel parameter identification toolbox based on various multi-objective optimization strategies for the selection of the best constitutive models from a given set of homogeneous experiments. The toolbox aims at providing an objective model selection procedure along with the material parameters for the rubber compound at hand. To this end, we utilize the multi-objective optimization using genetic algorithm of MATLAB. For the validation purposes, we use 24 constitutive laws.
16:20
Modelling electro-active polymers with a dispersion-type anisotropy
Mokarram Hossain (Swansea University)
Kurzfassung:
In this paper, we propose a novel constitutive framework for electro-active polymers (EAPs) that can take into account anisotropy with a chain dispersion.To demonstrate the performance of the proposed electro-mechanically coupled framework, we analytically solve a widely-used non-homogeneous boundary value problem. The results capture various electro-mechanical couplings with the formulation proposed for EAP composites.
Modelling electro-active polymers with a dispersion-type anisotropy
Mokarram Hossain (Swansea University)
Kurzfassung:
In this paper, we propose a novel constitutive framework for electro-active polymers (EAPs) that can take into account anisotropy with a chain dispersion.To demonstrate the performance of the proposed electro-mechanically coupled framework, we analytically solve a widely-used non-homogeneous boundary value problem. The results capture various electro-mechanical couplings with the formulation proposed for EAP composites.
16:40
Micro- and Macrostructural magneto-electric coupling in soft composites
Matthias Rambausek (University of Stuttgart), Marc-André Keip (University of Stuttgart)
Kurzfassung:
It was only recently that strong magneto-electric coupling effects in soft-matter-based composites have been described for the first time by Liu and Sharma (2013; Phys. Rev. E 88, 040601). This approach for the realization of magneto-electrical coupling has the potential to outperform existing solutions based on ceramic materials. In this contribution we will investigate magneto-electric transducers based on a soft magneto-electric composite with multiscale simulations.
Micro- and Macrostructural magneto-electric coupling in soft composites
Matthias Rambausek (University of Stuttgart), Marc-André Keip (University of Stuttgart)
Kurzfassung:
It was only recently that strong magneto-electric coupling effects in soft-matter-based composites have been described for the first time by Liu and Sharma (2013; Phys. Rev. E 88, 040601). This approach for the realization of magneto-electrical coupling has the potential to outperform existing solutions based on ceramic materials. In this contribution we will investigate magneto-electric transducers based on a soft magneto-electric composite with multiscale simulations.
17:00
Reduced-Order Modelling applied to Computational Homogenisation in Magneto-Mechanics
Benjamin Brands (Friedrich-Alexander University of Erlangen-Nürnberg), Julia Mergheim (Friedrich-Alexander University of Erlangen-Nürnberg), Paul Steinmann (Friedrich-Alexander University of Erlangen-Nürnberg)
Kurzfassung:
Due to their microstructure the mechanical response of magnetorheological composites is highly affected by applied magnetic fields. The commonly known FE$^2$ approach is computationally too expensive and therefore the FE problems on the microscale are replaced by reduced-order models. We will present our approach for the construction and computation of these reduced-order models. Through various numerical examples the accuracy and time savings of the reduced models will be discussed.
Reduced-Order Modelling applied to Computational Homogenisation in Magneto-Mechanics
Benjamin Brands (Friedrich-Alexander University of Erlangen-Nürnberg), Julia Mergheim (Friedrich-Alexander University of Erlangen-Nürnberg), Paul Steinmann (Friedrich-Alexander University of Erlangen-Nürnberg)
Kurzfassung:
Due to their microstructure the mechanical response of magnetorheological composites is highly affected by applied magnetic fields. The commonly known FE$^2$ approach is computationally too expensive and therefore the FE problems on the microscale are replaced by reduced-order models. We will present our approach for the construction and computation of these reduced-order models. Through various numerical examples the accuracy and time savings of the reduced models will be discussed.