These are not specific questions, but I will be reformulating them into questions on Tuesday
Single degree of freedom systems
Constants m,c,k used in evaluating SDOF systems
Free vs. Forced vibration systems
Identify the transient vs. steady state portion of forced vibration SDOF system
Identify a beat frequency for two excitations at nearly the same frequency
Duhamel Integral
What does it do ?
Given the formula, indicate what the terms are
Discreet Fourier Transform
What is magnitude and phase
What is Nyquist frequency
Given the formula, describe the terms involved
Given a plot of Magnitude vs. frequency, what is dominant frequency
Tectonics
How does one describe a fault
Know the difference between tranverse and normal faults
Know the relevant parts of a subduction zone
Strong Motion
Given the accleration record, compute velocity, displacement
Given the formula, compute power spectra
Explain how to compute response spectra
Seismic Hazard Analysis
Explain the difference between deterministic and probabilistic seismic hazard analysis
Understand the Gutenberg-Richter recurrence laws
Wave Travel in Elastic Continuum
Formula for p-wave and s-wave velocity, given elastic constants
Given the graph from Kramer of amplitude vs. depth, sketch the Rayleigh wave particle motion
1-D wave travel in rod
Know what a standing wave is for different end conditions
Given source wave, what will be reflected from fixed or free end
How are standing waves generated in a rod (formula?)
1-D Method of Characteristics
Given the equations for C+, C- characteristic, should be able to calculate stress and velocity over time for given excitation and soil conditions
1) Factors affecting dynamic soil properties
a) Confining stress
b) Void Ratio
c) Stress History
(1) Confinement history (Overconsolidation)
(2) Immediate stress-strain history (Loading cycles
(3) Representation as hydrostatic and deviatoric stresses
2) Ideas behind Dynamic Soil Models
a) Elastic
b) Viscoelastic
c) Non-linear deformation
d) Constitutive models
3) Equivalent linear behavior
a) Tangent modulus
b) Secant modulus
4) Viscoelastic models
a) work/energy
b) elliptical s-s behavior
5) Non-linear simple deformation
a) Hyperbolic
b) Ramberg-Osgood
c) Extended Masing criteria
6) Strain softening, strain hardening
7) Cyclic stress controlled vs. strain controlled
B) Laboratory Testing
1) Cyclic triaxial
a) State of stress-Mohr's circle
b) Static initial loading
2) Simple shear
a) with vertical static load
b) Mohr's circle representation
3) Torsional shear
a) Mohr's circle representation
C) Method of Characteristics
1) Linear properties
2) Non-linear properties and interpolation
D) Liquefaction
1) Cyclic Loading estimates
a) Seed and Idriss simplified method
2) Cyclic resistance estimates
a) Based on SPT
b) Based on Lab testing
E) Slope Stability
1) Pseudo-Static analysis
2) Dynamic analysis (exceeding a limiting acceleration