SD2185 Ultrasonics 6.0 credits
This course has been cancelled.
The course covers the theoretical background and some practical aspects of basic phenomena and techniques involving ultrasonic waves.
Education cycleSecond cycle
Main field of study
Grading scaleA, B, C, D, E, FX, F
Last planned examination: spring 20.
At present this course is not scheduled to be offered.
Intended learning outcomes
After the course the students should be able to:
- Derive the wave equation and find its plane wave solutions in infinite, anisotropic solids, isotropic semi-spaces, a planar wave guides.
- Formulate the boundary conditions associated with interfaces between solid-vacuum, solid-liquid, and solid-solid. Solve the related problem.
- Use, at least qualitatively, the main concepts of scattering theory to describe the interaction between waves and defects.
- Select the wave mode which is most appropriate for a given type of inspection. Select the appropriate transducer and experimental set-up to generate the mode.
- Inspect solid materials and provide a qualitative interpretation of the inspection results
Course main content
Elements of elasticity: strain and stress tensors, work, internal energy, generalized Hooke’s law. Propagation of bulk waves in isotropic and anisotropic solids: Christoffel equation, slowness surface; energy conservation and Poynting vector; group velocity. Rayleigh and Lamb waves: general properties of these modes and of their dispersion relations. Interaction of ultrasonic waves with perfect and damaged interfaces: boundary conditions; reflection and transmission. Radiation and Scattering: introduction to Green’s functions, radiation by a piston, Lommel integral, elements of scattering theory. Introduction to Nondestructive Evaluation (NDE): examples of material characterization by mean of ultrasonic waves.
Basic courses in mathematics, mechanics and noise control.
Ultrasonic Waves – Fundamentals and Applications’, J. David & N. Cheeke, CRC, Series in Pure and Applied Physics, CRC Press
- INL1 - Assignments, 3.0, grading scale: P, F
- TEN1 - Examination, 3.0, grading scale: A, B, C, D, E, FX, F
Requirements for final grade
Oral examination (TEN1; 3 university credits), Assignments (INL1; 3 university credits).
SCI/Aeronautical and Vehicle Engineering
Leif Kari <email@example.com>
Not given 08/09.
SD2130 Signal Analysis
SD2165 Acoustical Measurements
SD2150 Experimental Structure Dynamics
SD2155 Flow Acoustics
SD2160 Sound and Vibration, Project course
SD2170 Energy Methods
SD2175 Numerical Methods for Acoustics and Vibration
SD2180 Non-Linear Acoustics
SD2190 Vehicle Acoustics and Vibration
Course syllabus valid from: Autumn 2007.
Examination information valid from: Autumn 2007.