EMA 611
Links, EMA611 class, Rod Lakes
Why test?
disasters after U. Minnesota
Air Canada 143 glider
Caffeine decimal point
Aloha Airlines 243,
image,
image 2,
article.
Asiana 214 SF.
Airliner Composite tail
NY Times
Sneaker failure
American Airlines 191
United Airlines 232
Air Florida 90
Southwest Airlines 812 decompression
firefighting c-130
Navy ship dead in the water
Mars rover probe need for software test after BBC news
Mars climate observer unit conversion after Wired
Mars lander success,
2 2021
Therac radiation device, more software failure after ComputingCases.
737 Max 1, software
2, software
3, culture
4, culture
2021 engine fail
Success in a large project: the Webb space telescope.
For your reports
Guidelines for reports
Quality check for reports
Graph quality
Significant figures
Digital resolution: scope,
test frame
Writing tools, LaTeX
Books by Edward Tufte on graphs and
presentations
Project ideas
Pizza
Pizza slice
Oscilloscopes
Data export
Elasticity, material properties
Role of Poisson's ratio in three dimensional deformation.
Compression of blocks: determination of modulus.
Durometer reading - modulus calibration
after Mix and Giacomin
web elements Moduli and Poisson's ratio of the elements.
Maps of physical properties, gone. CAE removed resource.
Anisotropy resources
Nye, J. F., Physical Properties of Crystals, Oxford, UK,1976.
Lekhnitskii, S. G., Theory of elasticity of an anisotropic body, Mir, Moscow, 1981.
Viscoelasticity resources
introduction
Viscoelasticity survey links
Frequency dependence, modulus PMMA
Table of properties
Demonstrations
Compress hockey puck at 3 Hz; dissipated energy warms it.
Lakes, R. S., "Viscoelastic measurement techniques", Review of Scientific Instruments, 75, 797-810, (2004).
get pdf
Book
Bone viscoelasticity links
Ultrasonic waves lab 2
Basic concepts pdf ultrasound after Stanford
Notes on wave velocity and attenuation pdf waves
Boston Piezo Optics Piezoelectric crystals;
Introduction to piezoelectricity.
tone bursts, sweeps, pdf
Engine block thickness testing
Test frames - different frames for 2024 onward. lab 1, lab 3
Servohydraulic Testing Lab
Servo-hydraulic notes pdf
Shadow moire: map deformation
moire fringes, compressed block
Analog control frame pdf
Digital control frame pdf
Digital control screen
Holography and other optical methods lab 4
Holography was invented by Dennis Gabor who won the Nobel Prize for his work.
Interferometry was invented by Albert Michelson who won the Nobel Prize for his work.
Interferometry for gravitational waves
Nobel Prize, 2017 for decisive contributions to the LIGO detector and the observation of gravitational waves.
Holography links
Laser lab image
Other optical methods
Resonant Ultrasound Spectroscopy (RUS)
lab 5
RUS diagram
setup image
Scope scan, PMMA 10-110 kHz
Scope scan Al alloy 50-150 kHz
Modes of isotropic cube, after Demarest.
Modes of isotropic cube, full range of Poisson's ratio
Modes of isotropic sphere, after Yaoita et al.
Modes of isotropic cylinders, after Jaglinski
Videos of vibration modes of isotropic cylinder with length equal diameter, after T. Jaglinski :
torsion,
shear,
bend,
mixed bend,
flattening,
symmetric axial,
tone bursts, sweeps, pdf
seismology of apples
Maynard pdf of Physics Today article by Julian Maynard
Measure damping via RUS, pdf,
shear mode RUS pdf after Lakes.
Broadband viscoelastic spectroscopy (BVS) used for projects
BVS Instrument diagram
BVS Instrument diagram 2
BVS functions: image
Broadband results graph
BVS chamber image
More resources
Research links
Other class links
