Univerzita Pardubice Dopravní fakulta Jana Pernera

Univerzita Pardubice

Zaměstnanci
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Studenti
English

Publikace detail

Nanoindentation into PMMA and fused silica by spherical and pointed indenters - a comparison

Autoři: Menčík Jaroslav | Nohava Jiří

Rok: 2010

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Nanoindentation into PMMA and fused silica by spherical and pointed indenters - a comparison	This study compares characteristic features of nanoindentation testing of fused silica and polymethyl-methacrylate. Fused silica has high elastic modulus and hardness, and its response to load is instantaneous. PMMA is softer and more compliant, and its response also depends on time. For each material, two indenters were used: pointed, with high stress concentration leading always to irreversible deformations, and spherical, where the stresses grow gradually with increasing load. Under low loads, fully reversible deformations thus can be attained, suitable for the study of elastic or viscoelastic properties.	Nanoindentation, spherical indenter, pointed indenter, viscoelasticity, calibration