Elastic properties
Multiscale modeling of the effective elastic properties of fluid-filled porous materials
Liu, M., Wu, J., Gan, Y., Hanaor, D. A. H., & Chen, C. Q. International Journal of Solids and Structures, 2019, 162: 36-44. https://www.sciencedirect.com/science/article/pii/S0020768318304827
Abstract
Mechanical Characterization of Amyloid Fibrils Using Coarse-Grained Normal Mode Analysis
Mechanical Characterization of Amyloid Fibrils Using Coarse-Grained Normal Mode Analysis
Gwonchan Yoon, Jinhak Kwak, Jae In Kim, Sungsoo Na, and Kilho Eom
Abstract
New methods of analyzing indentation experiments on very thin films
Abstract - Indentation experiments on very thin films are analyzed by employing a rigorous solution to model elastic substrate effects. Two cases are discussed: elastic indentations where film and substrate are anisotropic, and elasto-plastic indentations where significant material pile-up occurs. We demonstrate that the elastic modulus of a thin film can be accurately measured in both cases, even if there is significant elastic mismatch between film and substrate.
This manuscript has been accepted for publication in Journal of Materials Research.
Determining the elastic modulus and hardness of an ultra-thin film on a substrate using nanoindentation
Abstract – A data analysis procedure has been developed to estimate the contact area in an elasto-plastic indentation of a thin film bonded to a substrate. The procedure can be used to derive the elastic modulus and hardness of the film from the indentation load, displacement, and contact stiffness data at indentation depths that are a significant fraction of the film thickness. The analysis is based on Yu’s elastic solution for the contact of a rigid conical punch on a layered half-space and uses an approach similar to the Oliver-Pharr method for bulk materials.