Composites of shape memory alloys (SMA) with a matrix have been widely studied to suppress the propagation of damage. In these studies, the SMA is used as an actuator. A multi-functional SMA as both sensor and actuator is suitable for constructing intelligent material, such as a material with a sensing and suppressing function. The damage of materials is related to the amount of strain. We studied the use of SMA wire parts as sensors to measure the amount of strain for damage estimation. The acoustic emission (AE) signals induced by phase tran ....etc

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Novel shape memory effect (SME) and pseudoelastic behavior are discovered in single-crystalline Au, Cu, and Ni nanowires with lateral dimensions of 1.5-10 nm. Under tensile loading and unloading, these wires can recover elongations of up to 50%, well beyond the recoverable strains of 5-8% typical for most bulk shape memory alloys (SMAs). Results of atomistic simulations and evidences from experiments show that this phenomenon only exists at the nanometer scale and is associated with a reversible crystallographic lattice reorientation driven byt ....etc

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please provide me with a ppt on the topic -ACOUSTIC EMISSION TOOL WEAR MONITORING ....etc

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what is the spontaneous emission and what is the stimulated emission ppt? ....etc

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Novel shape memory effect (SME) and pseudoelastic behavior are discovered in single-crystalline Au, Cu, and Ni nanowires with lateral dimensions of 1.5-10 nm. Under tensile loading and unloading, these wires can recover elongations of up to 50%, well beyond the recoverable strains of 5-8% typical for most bulk shape memory alloys (SMAs). Results of atomistic simulations and evidences from experiments show that this phenomenon only exists at the nanometer scale and is associated with a reversible crystallographic lattice reorientation driven byt ....etc

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Acoustic Emission Based Machining Tool Condition Monitoring – An Overview



ABSTRACT
Acoustic emission technique (AET) has been extensively researched and found to be one of the most of the most promising techniques for condition monitoring of machine tools. AE is non-intrusive, simple in operation and fast dynamic response. This paper discusses the applicability of AET for monitoring machine tool wear and breakage. This is followed by discussions on the re ....etc

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By
Mr.Pawan.S.Temkar



ABSTRACT.

Acoustic emission technique (AET) has been extensively researched and found to be one of the most of the promising techniques for condition monitoring of machine tools. AE is non-intrusive, simple in operation and gives fast dynamic response.
Acoustic Emission Technique (AET) is relatively recent entry in the field of NDE which has particularly shown a very high potential for material characterization and damage assessment in co ....etc

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SHAPE MEMORY ALLOYS
Introduction
Shape memory alloys (SMA's) are metals, which exhibit two very unique properties, pseudo-elasticity, and the shape memory effect. Arne Olander first observed these unusual properties in 1938 (Oksuta and Wayman 1998), but not until the 1960's were any serious research advances made in the field of shape memory alloys. The most effective and widely used alloys include NiTi (Nickel - Titanium), CuZnAl, and CuAlNi.
The two unique properties described above are made possi ....etc

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I want it for studies in smart material. ....etc

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MONITORING CRACK GROWTH IN PRESSURE VESSELS BY ACOUSTIC EMISSION TECHNIQUE
SEMINAR REPORT
Submitted by
NAHUSHAN.Y
ENGINEERING DEPARTMENT OF MECHANICAL
COLLEGE OF ENGINEERING TRIVANDRUM
August 2010



ABSTRACT

AE-Analysis is an extremely powerful technology that can be deployed within a wide range of usable applications of non-destructive testing: metal pressure vessels, piping systems, reactors, and similar. The growing discontinuities in pressure vessels and structures under ....etc

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