Engineering topics
Chang, Z.
Publications and source records attributed to Chang, Z..
System Modelling of Rotary Ultrasonic Motors
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Composite Materials Stiffness Determination and Defects Characterization Using Enhanced Leaky Lamb Wave Dispersion Data Acquisition
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Composite Materials Stiffness Determination and Defects Characterization Using Enhanced Leaky Lamb Wave Dispersion Data Aquisition Method
The leaky Lamb waves (LLW) technique is approaching a maturity level that is making it attractive quantitative NDE tool for composites and bonded joints.
Characterization of Defects in Composite Material Using Rapidly Acquired Leaky Lamb Wave Dispersion Data
The phenomenon of Leaky Lamb Wave (LLW) in composite materials was first observed in 1982 using a Schlieren system. It has been studied extensively by numerous investigators and successfully shown to be an effective quantitative NDE tool.
Material Properties and Defects Characterization Using LLW Data
Leaky Lamb Wave (LLW) propagation in composite materials has been studied extensively since it was first observed in 1982. The wave is induced using a pitch-catch arrangement and the plate wave modes are detected by identifying minima in the reflected spectra to obtain the dispersion data.
Defects Detection and Characterization Using Leaky Lamb Wave (LLW) Dispersion Data
Composite materials are being used at a significant level of usage for flaw critical structures and they are taking a growing percentage of the makeup of aircraft and spacecraft. Composite structues are now reaching service duration, for which the issue of aging is requiring adquate attention.
Improved Material Characterization of Composites Using Plate Wave Dispersion Data
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