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Meeting MS&T21: Materials Science & Technology
Symposium Solid-state Optical Materials and Luminescence Properties
Presentation Title A Review of Sharp Indentation to Probe Contact Damage in Glass
Author(s) Brian Campbell Davis, Ivar E. Reimanis, Amanda Bellafatto, Amber Tremper, Scott Glaesemann
On-Site Speaker (Planned) Ivar E. Reimanis
Abstract Scope The prediction of strength degradation due to contact damage remains an important challenge in the development of glass in load-bearing applications. A key aspect is to describe how damage under an indent evolves into a crack. A review is provided here beginning with analytical descriptions of contact stress fields developed to capture certain types of cracking behaviors. A widely used analytical model developed by Yoffe is compared with a recently developed finite element model (FEM). It is demonstrated that while the analytical model successfully describes the stress field for a limited number of situations, the results are largely inconsistent with experimentally observed crack systems and with FEM, and are sometimes misleading. The FEM model is extended to examine the importance of indenter geometrical variables for several glasses. Implications on the prediction of pop-in cracking during indentation are discussed.

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Green Chemistry Approach for the Preparation of Lanthanide Doped Alkaline-earth Fluoride Nanoparticles
A Review of Sharp Indentation to Probe Contact Damage in Glass
Additive Manufacturing of Tailored Laser Gain Media
Comonomer Isomers Result in LWIR:Transmitting ORMOCHALC Polymers
Effect of Samarium Doping on the Phase Stability and Optical Properties of Agro-food Waste-derived Calcium Silicates
Enhancing Strength in Nanocrystalline Transparent Ceramics
Highly Transparent MgGa2O4 and Ni Doped MgGa2O4 Semiconducting Ceramics
Micro- and Submicro-defects in Magneto-optical Crystal CeF3
Non Rule-of-mixtures Thermal Expansion in Core-shell Based Nanocrystalline Composite Ceramics
Optical Basicity of Oxynitrides
Processing of Rare Earth Doped Ga2O3 Transparent Ceramics
Seearching Nitride Luminescent Materials for Applications in High Luminance Lighting and Sensing
Versatile Non-cubic Transparent Ceramics Applicable to Broad Wavelength Region

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