Abstract
Nanoindentation technique can be utilized for the mechanical property evaluation of visoelastic materials such as biomaterials and polymers. Indentation load-relaxation is more suitable for the measurement of the viscoelasticity than creep indentation utilized conventionally because of its mechanical simplicity. Our aim of this study is to develop a novel inverse analysis of the indentation load-relaxation of visoelastic materials, which does not depend on the contact mechanics. In this presentation, the effect of creep parameters such as the creep constant and creep stress exponent on the relaxation will be discussed.
