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Modeling the mechanical properties of ultra-thin polymer films

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Abstract

A modeling method to extract the mechanical properties of ultra-thin films (10–100 nm thick) from experimental data generated by indentation of freestanding circular films using a spherical indenter is presented. The relationship between the mechanical properties of the film and experimental parameters including load, and deflection are discussed in the context of a constitutive material model, test variables, and analytical approaches. Elastic and plastic regimes are identified by comparison of finite element simulation and experimental data.

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DOI:10.1017/hpl.2017.27

基金项目:This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. The work was funded by LLNL LDRD 14-ERD-025.

收稿日期:2016-11-03

录用日期:2017-08-17

网络出版日期:2017-08-30

作者单位    点击查看

Francisco Espinosa-Loza:Lawrence Livermore National Laboratory, 7000 East Avenue, L-471, Livermore, CA 94550, USA
Michael Stadermann:Lawrence Livermore National Laboratory, 7000 East Avenue, L-471, Livermore, CA 94550, USA
Chantel Aracne-Ruddle:Lawrence Livermore National Laboratory, 7000 East Avenue, L-471, Livermore, CA 94550, USA
Rebecca Casey:Lawrence Livermore National Laboratory, 7000 East Avenue, L-471, Livermore, CA 94550, USA
Philip Miller:Lawrence Livermore National Laboratory, 7000 East Avenue, L-471, Livermore, CA 94550, USA
Russel Whitesides:Lawrence Livermore National Laboratory, 7000 East Avenue, L-471, Livermore, CA 94550, USA

联系人作者:Michael Stadermann(stadermann2@llnl.gov)

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引用该论文

Francisco Espinosa-Loza, Michael Stadermann, Chantel Aracne-Ruddle, Rebecca Casey, Philip Miller, and Russel Whitesides, "Modeling the mechanical properties of ultra-thin polymer films," High Power Laser Science and Engineering 5(4), e27 (2017)

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