Nanoindentation has numerous advantages: it can be implemented to determine not just the elastic modulus and hardness values, but also other mechanical properties such as fracture toughness, creep and yield stress at the nanolevel. Anoop, in Nanotechnology in Eco-efficient Construction (Second Edition), 2019 7.4.3 Unique advantages, assumptions, and limitations Due to the complexity of the elasticity and plasticity during indentation process, a computer modeling approach by molecular dynamics and finite element analysis or an analytical approach is necessary to fully understand the nanoindentation mechanism. Plastic properties extracted from nanoindentation is possible. This chapter reviewed the nanoindentation studies that can be used to determine the mechanical properties of bulk materials, interphase in composites, nanostructured materials, thin films, and coatings. It is also important to determine the correct test protocol used to minimize such influences. It is essential to understand the fundamentals of the nanomechanical properties tested by nanoindentation. Nanoindentation can be used to assess bulk material, interfaces in composites, nanostructured materials, thin films, and coatings, but in many cases, a composite response is produced due to the influence from the surrounding material. Zhong Hu, in Microscopy Methods in Nanomaterials Characterization, 2017 6.6 Summary The difficulties in using these methods are discussed. Nanoindentation is now being applied to this problem with studies examining connective tissues and polymers using both static and dynamic methods. The nanomechanics of soft, living tissues and polymeric biomaterials are also described. The use of nanoindentation methods to study skeletal and dental tissues is highlighted. The chapter details the current results of nanoindentation testing on both soft and hard tissues and biomaterials, and also the future direction of nanoindentation studies on biological systems.
Unless the researcher is aware of these there is a real danger that the results obtained will say more about the analysis routines that are used than the material that has been tested. Also highlighted are the many pitfalls that may befall the unwary researcher. This chapter describes the fundamentals of nanoindentation testing including instrumentation and data analysis. In the coming years the importance of nanoindentation testing in biology and biomaterials research is likely to show a rapid increase. Current studies have tended to focus on hard tissues and biomaterials, but soft tissues and viscoelastic biomaterials are of growing interest. Since surface and interfacial properties are of great importance in biology, and especially in biomaterials, there is a growing interest in the use of nanoindentation to study biological materials and systems. Nanoindentation is now widely recognized as the preferred method for testing thin film and surface mechanical properties. A B MANN, in Surfaces and Interfaces for Biomaterials, 2005 9.1 Introduction
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