Imperial College London
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ProfessorMatthewSanter

Faculty of Engineering, Department of Aeronautics

Professor of Aerospace Structures
 
 
 
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Contact

 

+44 (0)20 7594 5117m.santer

 
 
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Location

 

335City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Thillaithevan:2022:10.1007/s00158-021-03104-w,
author = {Thillaithevan, D and Bruce, P and Santer, M},
doi = {10.1007/s00158-021-03104-w},
journal = {Structural and Multidisciplinary Optimization: computer-aided optimal design of stressed solids and multidisciplinary systems},
pages = {1--18},
title = {Robust multiscale optimization accounting for spatially-varying material uncertainties},
url = {http://dx.doi.org/10.1007/s00158-021-03104-w},
volume = {65},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In this work we demonstrate a methodologyfor performing robust optimization using multivariableparameterized lattice microstructures. By introducingmaterial uncertainties at the microscale, we are able tosimulate the variations in geometry that occur duringthe manufacturing stage and design structures which aretolerant to variations in the microscale geometry. Weimpose both uniform and spatially-varying, non-uniformmaterial uncertainties to generate structures which, interms of standard deviation, are up to 77% more robustin the non-spatially uncertainty varying case, and 74%more robust in the spatially-varying case. We also explore the utility of imposing spatially-varying materialuncertainties compared to using homogeneous, uniformmaterial uncertainties, which are much less computationally expensive. It is found that when designs thathave been optimized assuming uniform uncertainties aresubject to spatially-varying uncertainties, their standarddeviations of compliance are similar to designs optimizedassuming spatially-varying uncertainties. However, theirmean compliances are far higher in comparison to designs generated by assuming spatially-varying materialuncertainties.
AU  - Thillaithevan,D
AU  - Bruce,P
AU  - Santer,M
DO  - 10.1007/s00158-021-03104-w
EP  - 18
PY  - 2022///
SN  - 1615-147X
SP  - 1
TI  - Robust multiscale optimization accounting for spatially-varying material uncertainties
T2  - Structural and Multidisciplinary Optimization: computer-aided optimal design of stressed solids and multidisciplinary systems
UR  - http://dx.doi.org/10.1007/s00158-021-03104-w
UR  - https://link.springer.com/article/10.1007/s00158-021-03104-w
UR  - http://hdl.handle.net/10044/1/92712
VL  - 65
ER  -
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