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Volume 5, Issue 6 (Suppl) J Mat. Sci.
ISSN: 2321-6212 Advanced Materials 2017
October 26-28, 2017
Page 36
Notes:
conferenceseries.com
OCTOBER 26-28, 2017 OSAKA, JAPAN
13TH INTERNATIONAL CONFERENCE ON
Advanced Materials and Nanotechnology
Dielectric nanomethods for assessment of composite material integrity and properties
C omposite materials are essential for many modern applications, including airplanes and cars, energy conversion and
storage devices, medical prosthetics and civil structures. The properties and long-term performance of such materials are
determined by the integrity of internal material interfaces at the nanolevel and under mechanical loading by a complex sequence
of progressive nucleation, accumulation and coalescence of micro-damage that is always related to the micro-morphology
of the constituents and their properties. Although detecting and modeling all the discrete details at the local level is quite
difficult and in some cases not feasible, it would be very useful to identify observable local parameters that directly reflect the
global properties and integrity of such materials and specially to detect and predict the onset of different stages of damage
development so that remaining strength and life could be estimated. The present paper reports the discovery of such a method
and the construction of fundamental local concepts and relationships that define the global properties and performance of
composite materials and methods of interpretation that define the boundary between the distributed nucleation of defects
and the interaction and joining of individual defects to create micro-cracks and eventually unstable fracture planes. The new
concepts are based on the application, understanding/modeling and interpretation of the dielectric response of such materials
to low-frequency, low voltage input fields which results in very clear indications of changes in the global dielectric constants
of a fibrous composite material. Conceptual, computational and physical foundations for the new concepts are discussed.
Applications of the concepts are suggested in diverse situations, from structural mechanics to fuel cells to the durability of
nuclear waste forms.
Biography
Kenneth Reifsnider is a graduate from Johns Hopkins University in the general field of materials and has served on the faculties of Virginia Tech, University of
Connecticut, University of South Carolina and the University of Texas. He is the Director of the Institute of Predictive Performance Methodologies at UT Arlington
and a Member of the National Academy of Engineering in the US. He has more than 300 archival publications and has given invited guest lectures in more than
20 countries.
Kenneth Reifsnider
University of Texas, USA
Kenneth Reifsnider, J Mat. Sci. 2017, 5:6
DOI: 10.4172/2321-6212-C1-007