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Benzerara, Olivier
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Publications (6/6 displayed)
- 2022Role of torsional potential in chain conformation, thermodynamics, and glass formation of simulated polybutadiene meltscitations
- 2018Shear-stress fluctuations and relaxation in polymer glassescitations
- 2017Numerical determination of shear stress relaxation modulus of polymer glassescitations
- 2012Mechanical behavior of linear amorphous polymers: Comparison between molecular dynamics and finite-element simulationscitations
- 2010Molecular dynamics simulations as a way to investigate the local physics of contact mechanics: a comparison between experimental data and numerical resultscitations
- 2010Molecular dynamics simulations of the chain dynamics in monodisperse oligomer melts and of the oligomer tracer diffusion in an entangled polymer matrixcitations
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article
Molecular dynamics simulations as a way to investigate the local physics of contact mechanics: a comparison between experimental data and numerical results
Abstract
In this work, a mechanical analysis of normal contact using molecular dynamics (MD) simulations is presented. Conical indentation on amorphous polymer surfaces was simulated at various temperatures and indentation rates under displacement or load control. The results are qualitatively compared with experimental data from tests on epoxy materials with different glass transition temperatures (T g), and show good agreement with experiments. Moreover, MD simulations of nano-indentation tests allow us to estimate the mechanical properties of the polymer films studied as in experimental nano-indentation tests, which demonstrates the relevance of this approach.