An Investigation on Shape Morphing by Modulus Variation: Forward Approach

Structural shape deformation, in its conventional way, includes applying forces to a fixed-compliance structure to deform it to certain shapes. Rather than addressing shape control in the established way (applying forces to elastically or plastically deform a structure), this work studies the use of...

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Main Authors: Amin Mohaghegh Motlagh, William W. Clark
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Journal of Engineering
Online Access:http://dx.doi.org/10.1155/2014/706830
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author Amin Mohaghegh Motlagh
William W. Clark
author_facet Amin Mohaghegh Motlagh
William W. Clark
author_sort Amin Mohaghegh Motlagh
collection DOAJ
description Structural shape deformation, in its conventional way, includes applying forces to a fixed-compliance structure to deform it to certain shapes. Rather than addressing shape control in the established way (applying forces to elastically or plastically deform a structure), this work studies the use of shape morphing, which involves combining applied forces and local modulus changes. Specifically in this paper, a simply supported elastic beam that can exhibit variable compliance behavior is selected as the model. This study focuses on the forward approach of morphing, that is, determining possible beam shapes due to the applied force and modulus variability. The goal is to incorporate variable-modulus materials into a structure model and utilize the controllable modulus change to quantify the morphing of the structure with limited actuator numbers, locations, and force levels. The resulting morphed shapes are quantified in terms of various characteristic parameters. The study demonstrates that a larger, and in some cases nonintuitive, space of shapes becomes possible when modulus change is utilized, for the same set of applied forces.
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spelling doaj-art-ebcac565ae35441cb6ce02bd036645572025-02-03T06:07:11ZengWileyJournal of Engineering2314-49042314-49122014-01-01201410.1155/2014/706830706830An Investigation on Shape Morphing by Modulus Variation: Forward ApproachAmin Mohaghegh Motlagh0William W. Clark1Department of Mechanical Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USADepartment of Mechanical Engineering, University of Pittsburgh, Pittsburgh, PA 15261, USAStructural shape deformation, in its conventional way, includes applying forces to a fixed-compliance structure to deform it to certain shapes. Rather than addressing shape control in the established way (applying forces to elastically or plastically deform a structure), this work studies the use of shape morphing, which involves combining applied forces and local modulus changes. Specifically in this paper, a simply supported elastic beam that can exhibit variable compliance behavior is selected as the model. This study focuses on the forward approach of morphing, that is, determining possible beam shapes due to the applied force and modulus variability. The goal is to incorporate variable-modulus materials into a structure model and utilize the controllable modulus change to quantify the morphing of the structure with limited actuator numbers, locations, and force levels. The resulting morphed shapes are quantified in terms of various characteristic parameters. The study demonstrates that a larger, and in some cases nonintuitive, space of shapes becomes possible when modulus change is utilized, for the same set of applied forces.http://dx.doi.org/10.1155/2014/706830
spellingShingle Amin Mohaghegh Motlagh
William W. Clark
An Investigation on Shape Morphing by Modulus Variation: Forward Approach
Journal of Engineering
title An Investigation on Shape Morphing by Modulus Variation: Forward Approach
title_full An Investigation on Shape Morphing by Modulus Variation: Forward Approach
title_fullStr An Investigation on Shape Morphing by Modulus Variation: Forward Approach
title_full_unstemmed An Investigation on Shape Morphing by Modulus Variation: Forward Approach
title_short An Investigation on Shape Morphing by Modulus Variation: Forward Approach
title_sort investigation on shape morphing by modulus variation forward approach
url http://dx.doi.org/10.1155/2014/706830
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