Modeling and Experimental studies on amorphous shape memory polymers - Couverture souple

Renganathan, Sujithra; Arunachalam, Arockiarajan; Srinivasn, Sivakumar

 
9783330014701: Modeling and Experimental studies on amorphous shape memory polymers
Couverture souple
ISBN 10 : 3330014709 ISBN 13 : 9783330014701
Editeur : LAP LAMBERT Academic Publishing, 2016

Synopsis

A model that can describe the shape memory behavior of amorphous polymers based on theory of multiple natural configurations is presented and implemented for use in applications. The thermodynamic framework presented considers evolution of multiple natural configurations and models the key features, especially, the temperature and deformation dependent change in stiffness and shape memorizing characteristics. A single parameter called the degree of glass transition is used to describe the memory locking and releasing characteristics. Using this framework and specialization to small deformations, the developed model is implemented in ABAQUS through VUMAT subroutine feature and correlated with existing epoxy shape memory experiments. Various thermomechanical conditions on structural components such as rods under tension and compression and beams are analyzed. A thermomechanical test setup was built to study the memory characteristics of ring shaped specimens subjected to large deflections with three different ratios of epoxy SMP. The simulation results for large deflection of ring confirm that the model performs well especially in relation to the memory dependent characteristics.

Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.

Présentation de l'éditeur

A model that can describe the shape memory behavior of amorphous polymers based on theory of multiple natural configurations is presented and implemented for use in applications. The thermodynamic framework presented considers evolution of multiple natural configurations and models the key features, especially, the temperature and deformation dependent change in stiffness and shape memorizing characteristics. A single parameter called the degree of glass transition is used to describe the memory locking and releasing characteristics. Using this framework and specialization to small deformations, the developed model is implemented in ABAQUS through VUMAT subroutine feature and correlated with existing epoxy shape memory experiments. Various thermomechanical conditions on structural components such as rods under tension and compression and beams are analyzed. A thermomechanical test setup was built to study the memory characteristics of ring shaped specimens subjected to large deflections with three different ratios of epoxy SMP. The simulation results for large deflection of ring confirm that the model performs well especially in relation to the memory dependent characteristics.

Biographie de l'auteur

Dr. R. Sujithra, Assistant professor at Maharashtra Institute of Technology, Pune. She did her B.E from Department of Polymer, Amrita Institute of Technology & Science, M.S (by research) from Department of Rubber and Plastics, Anna University and Ph.D. from Department of Applied Mechanics, Indian Institute of Technology Madras.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2016
Langue
anglais
ISBN 10 
3330014709
ISBN 13 
9783330014701
Reliure
Broché
Nombre de pages
108
Coordonnées du fabricant
non disponible
Personne responsable
non disponible