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dc.contributor.authorNi, Boen_US
dc.contributor.authorGao, Huajianen_US
dc.identifier.citationNi, B. & Gao, H. (2021). A deep learning approach to the inverse problem of modulus identification in elasticity. MRS Bulletin, 46, 19-25.
dc.description.abstractThe inverse elasticity problem of identifying elastic modulus distribution based on measured displacement/strain fields plays a key role in various non-destructive evaluation (NDE) techniques used in geological exploration, quality control, and medical diagnosis (e.g., elastography). Conventional methods in this field are often computationally costly and cannot meet the increasing demand for real-time and high-throughput solutions for advanced manufacturing and clinical practices. Here, we propose a deep learning (DL) approach to address this challenge. By constructing representative sampling spaces of shear modulus distribution and adopting a conditional generative adversarial net, we demonstrate that the DL model can learn high-dimensional mapping between strain and modulus via training over a limited portion of the sampling space. The proposed DL approach bypasses the costly iterative solver in conventional methods and can be rapidly deployed with high accuracy, making it particularly suitable for applications such as real-time elastography and highthroughput NDE techniques.en_US
dc.relation.ispartofMRS Bulletinen_US
dc.rights© 2021 Materials Research Society. All rights reserved.en_US
dc.subjectEngineering::Mechanical engineeringen_US
dc.titleA deep learning approach to the inverse problem of modulus identification in elasticityen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Mechanical and Aerospace Engineeringen_US
dc.contributor.organizationInstitute of High Performance Computing, A*STARen_US
dc.subject.keywordsElastic Modulien_US
dc.description.acknowledgementThe authors acknowledge the support by the National Science Foundation (NSF) under the grant CMMI-1634492. The simulations were performed on resources provided by the Extreme Science and Engineering Discovery Environment (XSEDE) through grant MSS090046 and at the Center for Computation and Visualization at Brown University.en_US
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