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Full-Text Articles in Engineering

Software Modeling For Flaw Characterization Of Metals Through Eddy-Currents, Radhika Satveli Jan 1995

Software Modeling For Flaw Characterization Of Metals Through Eddy-Currents, Radhika Satveli

Retrospective Theses and Dissertations

Nondestructive evaluation (NDE) consists of methods and techniques for the periodic testing of materials and structures that do not require machine disassembly. Electromagnetic NDE makes use of electromagnetic induction, fields, or varying currents for probing and measuring the test samples and thus achieving NDE goals. The electromagnetic NDE cycle is as depicted in Figure 1.1. Eddy current NDE falls in the category of electromagnetic NDE.


Tissue Characterization Using A-Mode Ultrasound For Beef Quality Grading, 1992-1995, Alpesh B. Patel Jan 1995

Tissue Characterization Using A-Mode Ultrasound For Beef Quality Grading, 1992-1995, Alpesh B. Patel

Retrospective Theses and Dissertations

Many of the modern medical diagnostic and material characterization technologies are a direct result of clever use of ultrasound. Ultrasound, for example, is used very widely as a tool for characterizing tissue in medical applications. It is also used extensively in other applications such as nondestructive testing and fluid flow measurements. The objective of the research described in this thesis is to develop a computer based ultrasound system for characterizing beef tissue for quality grading. Extensive research has been performed with regard to tissue characterization in medical applications. Similar work has also been carried out using ultrasound for structural analysis ...


Elastic Property Estimation In Thin Graphite Epoxy Composite Plates Using Ultrasonic Nondestructive Evaluation, Douglas L. Van Otterloo Jan 1995

Elastic Property Estimation In Thin Graphite Epoxy Composite Plates Using Ultrasonic Nondestructive Evaluation, Douglas L. Van Otterloo

Retrospective Theses and Dissertations

The past few decades have seen a steady increase in the use of composite materials. First, as non-load bearing structures such as nose cones and control surfaces and more recently as primary structure. Composite materials can have strength to weight ratios higher than any homogeneous material which makes them very attractive structural materials for the aerospace industry. Unfortunately, in previous years, the failure and performance of composites was not well understood. This eliminated them from use as primary structure. Since the early years of their development, composites have become much more reliable and offer higher strength to weight ratios than ...