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Papers by Daniel Juhre PAMM , 2015
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PAMM , 2015
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Constitutive Models for Rubbers IX , 2015
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Constitutive Models for Rubber VIII , 2013
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Constitutive Models for Rubber VIII , 2013
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PAMM , 2014
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Bookmarks Related papers Mentions View impact
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PAMM , 2005
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PAMM , 2014
ABSTRACT In this work we investigate the performance of a visco-hyperelastic material model to pr... more ABSTRACT In this work we investigate the performance of a visco-hyperelastic material model to predict the time-dependent deformation behaviour of highly elastic adhesives. The model is based on the hyperelastic Arruda-Boyce model with a Prony series approach. The parameter identification is conducted for fixed relaxations times which are predicted via evaluating an integral ansatz for the shear modulus. (© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
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Macromolecular Theory and Simulations , 2011
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ABSTRACT Existing procedures to identify material parameters are based on experiments with simple... more ABSTRACT Existing procedures to identify material parameters are based on experiments with simple specimens. Additionally, the load distribution is approximately homogeneous. But there are only few feasible experiments which produce homogeneous or almost homogeneous load distributions. Furthermore, deviations from homogeneity and their consequences cannot be avoided, but are often ignored. We present a solution algorithm which takes several different experimental results into account. Thereby, the experiments are performed on specimens which respond with inhomogeneous distributions of strains and stresses. The restriction to homogeneous loads is not necessary. Thus, it is possible to use different measured data of multiple load cases on one and the same test specimen. The component-oriented design of the specimen permits to consider the specific properties of product groups, the load types and the effect of the manufacturing process on the final material properties already during the identification process. (© 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
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Bookmarks Related papers Mentions View impact
International Journal of Solids and Structures , 2009
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Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics , 2006
In this contribution we present a finite deformation material model for SMA which includes the ef... more In this contribution we present a finite deformation material model for SMA which includes the effect of pseudoelasticity. The model is implemented into a FE code by using an innovative implicit time integration scheme. The final aim of the research work is to investigate whether FE simulations of SMA applications, e.g. NiTI-stents or medical foot staples, should be based on large strain formulations as the transformation strain during the phase transition can reach up to 10 %. If such a large strain model was not necessary the computational cost of the numerical investigations could be reduced significantly.
Bookmarks Related papers Mentions View impact
PAMM , 2005
Bookmarks Related papers Mentions View impact
PAMM , 2006
Bookmarks Related papers Mentions View impact
PAMM , 2004
Bookmarks Related papers Mentions View impact
PAMM , 2015
Bookmarks Related papers Mentions View impact
PAMM , 2015
Bookmarks Related papers Mentions View impact
Bookmarks Related papers Mentions View impact
Constitutive Models for Rubbers IX , 2015
Bookmarks Related papers Mentions View impact
Constitutive Models for Rubber VIII , 2013
Bookmarks Related papers Mentions View impact
Constitutive Models for Rubber VIII , 2013
Bookmarks Related papers Mentions View impact
PAMM , 2014
Bookmarks Related papers Mentions View impact
Bookmarks Related papers Mentions View impact
Bookmarks Related papers Mentions View impact
Bookmarks Related papers Mentions View impact
PAMM , 2005
Bookmarks Related papers Mentions View impact
PAMM , 2014
ABSTRACT In this work we investigate the performance of a visco-hyperelastic material model to pr... more ABSTRACT In this work we investigate the performance of a visco-hyperelastic material model to predict the time-dependent deformation behaviour of highly elastic adhesives. The model is based on the hyperelastic Arruda-Boyce model with a Prony series approach. The parameter identification is conducted for fixed relaxations times which are predicted via evaluating an integral ansatz for the shear modulus. (© 2014 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
Bookmarks Related papers Mentions View impact
Macromolecular Theory and Simulations , 2011
Bookmarks Related papers Mentions View impact
ABSTRACT Existing procedures to identify material parameters are based on experiments with simple... more ABSTRACT Existing procedures to identify material parameters are based on experiments with simple specimens. Additionally, the load distribution is approximately homogeneous. But there are only few feasible experiments which produce homogeneous or almost homogeneous load distributions. Furthermore, deviations from homogeneity and their consequences cannot be avoided, but are often ignored. We present a solution algorithm which takes several different experimental results into account. Thereby, the experiments are performed on specimens which respond with inhomogeneous distributions of strains and stresses. The restriction to homogeneous loads is not necessary. Thus, it is possible to use different measured data of multiple load cases on one and the same test specimen. The component-oriented design of the specimen permits to consider the specific properties of product groups, the load types and the effect of the manufacturing process on the final material properties already during the identification process. (© 2012 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim)
Bookmarks Related papers Mentions View impact
Bookmarks Related papers Mentions View impact
International Journal of Solids and Structures , 2009
Bookmarks Related papers Mentions View impact
Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics , 2006
In this contribution we present a finite deformation material model for SMA which includes the ef... more In this contribution we present a finite deformation material model for SMA which includes the effect of pseudoelasticity. The model is implemented into a FE code by using an innovative implicit time integration scheme. The final aim of the research work is to investigate whether FE simulations of SMA applications, e.g. NiTI-stents or medical foot staples, should be based on large strain formulations as the transformation strain during the phase transition can reach up to 10 %. If such a large strain model was not necessary the computational cost of the numerical investigations could be reduced significantly.
Bookmarks Related papers Mentions View impact
PAMM , 2005
Bookmarks Related papers Mentions View impact
PAMM , 2006
Bookmarks Related papers Mentions View impact
PAMM , 2004
Bookmarks Related papers Mentions View impact
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Papers by Daniel Juhre