INTRODUCTION - Nanoindentation with Biological Applications - page 19

Figure 1-11. A schematic illustration of the elastic modulus ranges for engineering
materials and biological materials. The elastic modulus range typically associated with
traditional nanoindentation testing is 1 GPa and greater. The majority of non-mineralized
biological materials have much smaller modulus values, and for these materials there are
significant challenges in adapting standard nanoindentation techniques.
4. Overview of this Volume
The remainder of this volume is divided into two parts. Part I
considers the practical principles that underlie the two primary
nanoindentation test methods, beginning with the distinction between
instrumented indentation and atomic force microscope (AFM)-based
testing ( Chapter 2 ) and experimental considerations for each ( Chapter 3 ).
Next, fundamental contact mechanics principles are presented; these
influence the mode of data analysis in cases of adhesion between the
indenter and sample ( Chapter 4 ) and different deformation modes that
occur under indentation, i.e . elastic, plastic, viscous ( Chapter 5 ). The
section concludes with considerations for computational modeling of
contact problems ( Chapter 6 ). Having established the basic experimental