Stress‐Constrained Thickness Optimization for Shell Object Fabrication

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dc.contributor.authorZhao, Haimingen_US
dc.contributor.authorXu, Weiweien_US
dc.contributor.authorZhou, Kunen_US
dc.contributor.authorYang, Yinen_US
dc.contributor.authorJin, Xiaogangen_US
dc.contributor.authorWu, Hongzhien_US
dc.contributor.editorChen, Min and Zhang, Hao (Richard)en_US
dc.date.accessioned2018-01-10T07:36:35Z
dc.date.available2018-01-10T07:36:35Z
dc.date.issued2017
dc.description.abstractWe present an approach to fabricate shell objects with thickness parameters, which are computed to maintain the user‐specified structural stability. Given a boundary surface and user‐specified external forces, we optimize the thickness parameters according to stress constraints to extrude the surface. Our approach mainly consists of two technical components: First, we develop a patch‐based shell simulation technique to efficiently support the static simulation of extruded shell objects using finite element methods. Second, we analytically compute the derivative of stress required in the sensitivity analysis technique to turn the optimization into a sequential linear programming problem. Experimental results demonstrate that our approach can optimize the thickness parameters for arbitrary surfaces in a few minutes and well predict the physical properties, such as the deformation and stress of the fabricated object.We present an approach to fabricate shell objects with thickness parameters, which are computed to maintain the user‐specified structural stability. Given a boundary surface and user‐specified external forces, we optimize the thickness parameters according to stress constraints to extrude the surface. Our approach mainly consists of two technical components: First, we develop a patch‐based shell simulation technique to efficiently support the static simulation of extruded shell objects using finite element methods. Second, we analytically compute the derivative of stress required in the sensitivity analysis technique to turn the optimization into a sequential linear programming problem.en_US
dc.description.number6
dc.description.sectionheadersArticles
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume36
dc.identifier.doi10.1111/cgf.12986
dc.identifier.issn1467-8659
dc.identifier.pages368-380
dc.identifier.urihttps://doi.org/10.1111/cgf.12986
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf12986
dc.publisher© 2017 The Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subject3D printing
dc.subjectshell simulation
dc.subjectstructural stability
dc.subjectsensitivity analysis
dc.subjectI.3.3 [Computer Graphics]: Three‐Dimensional Graphics and Realism Geometry
dc.titleStress‐Constrained Thickness Optimization for Shell Object Fabricationen_US
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