Effect of creep in evaluation of nanoindentation of cement pastes
Abstract eng: This paper deals with nanoindentation of cement paste as a representative of heterogeneous and time-dependent building material. The paper concerns on the appropriateness of methods used for evaluation of micromechanical properties. Limitation of traditional elastic solution is shown on the unique experimental program. Better descriptions of indentation process based on analytical viscoelastic solution and finite element model with general viscoelastoplastic constitutive relation are proposed. These models are used for simulation of indentation and for estimation of material parameters at micrometer scale.
Contributors:
Publisher:
Institute of Theoretical and Applied Mechanics, AS CR, v.v.i., Prague
Conference Title:
Conference Title:
ENGINEERING MECHANICS 2006
Conference Venue:
Svratka (CZ)
Conference Dates:
2006-05-15 / 2006-05-18
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2014-11-12, last modified 2014-11-18
guest ::
