Upcoming Seminars
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Past Seminars
2
Structural and Geotechnical Engineering Failure Investigations and Legal Disputes
Speaker: Dr. Christine Beyzaei and Dr. Ezra Jampole
In an ideal world, an engineer’s involvement in a structure would end after construction is finished. But the reality is that many structures are subject to costly litigation or arbitration because of allegations of inadequate design or performance. Additionally, when a structure is subjected to extreme loading, insurance disputes arise regarding the source of damage and who is responsible. This talk will review the types of legal disputes that structural engineers can find themselves in and how expert witnesses are used to sort through the issues and provide independent opinions.
An Introduction to ASCE41-17: Seismic Evaluation and Retrofit of Existing Buildings
February 26, 2020 - 1:00 pm
Speaker: Dr. Reza Moradi
ASCE41-17 is a current US standard for seismic evaluation and retrofitting of existing buildings. Performance based method is used in ASCE 41 which is different in a number of ways from prescriptive method used in ASCE 7. In this presentation, the main differences between performance bases and prescriptive methods are discussed. Also, an overview of ASCE 41-17 including the specification in its three tiers and methodologies in its linear and nonlinear analysis approach is presented.
Numerical Modeling of Earthquake-Induced Ground Deformations
April 10, 2019 - 12:00 pm
Speaker: Professor Katerina Ziotopoulou
Non-linear dynamic analyses (NDAs) are widely used in engineering practice to evaluate the seismic performance of geotechnical structures affected by liquefaction or cyclic softening.
Full-Scale Five-Story Building Shake Table Test
April 03, 2019 - 12:00 pm
Speaker: Dr. Michelle Chen
Intense earthquake ground motions can be devastating to communities, and can lead to years and even decades of recovery. It is observed in recent earthquakes that nonstructural components, which make up a large part of a building’s cost, are vulnerable to seismic damage.
Materials and Processing for Aerostructures, Emerging Technologies and Future Needs
April 01, 2019 - 12:00 pm
Speaker: Dr. Teresa Kruckenberg
This presentation will cover the conventional materials, processing and design applications for aerostructures such as nacelles and flight control surfaces. Examples of emerging technologies such as additive manufacturing, nanomaterials, prognostic health management, ultra-
Test-Based Uncertainty Quantification and Propagation Using Hurty/Craig-Bampton Substructure Representations
March 13, 2019 - 1:00 pm
Speaker: Daniel C. Kammer
This work presents a method for uncertainty propagation that is consistent with the “building-block approach” in which components of a system are tested and validated individually instead of an integrated vehicle test and validation being performed.
Analyze Uncertainties Associated with GMPE for PSHA
March 11, 2019 - 1:00 pm
Speaker: Dr. Chin-Hsiung Loh
In probabilistic seismic hazard analysis (PSHA), the standard practice is to se¬lect a set of appropriate ground motion prediction equations (GMPEs) and assign weights on the logic tree, especially for regions where strong motion data are sparse and where no indigenous GMPE exists.
Uncertainty Quantification of Complex Systems via Multi-fidelity Modeling
March 04, 2019 - 11:00 am
Speaker: Professor Alireza Doostan
Realistic analysis and design optimization of complex engineering systems require not only a fine understanding and modeling of the underlying physics and their interactions but also recognition of intrinsic uncertainties and their influences on the quantities of interest.
Nondestructive Testing of Structures: Current Industry Methods and Project Applications
March 04, 2019 - 1:00 pm
Speaker: Heather Todak
This seminar is intended to highlight current industry standards for performing nondestructive testing (NDT) by presenting several case studies from recent project work. Techniques included ground-penetrating radar, ultrasonic tomography, ultrasonic pulse velocity, acoustic emissions and impact echo will be discussed.
The Failure Forecast Method as a Prognostic Extension of Structural Health Monitoring
February 27, 2019 - 1:00 pm
Speaker: Professor Michael Todd
Damage prognosis is the act of making an informed prediction of the future state of health of a system or component, given that a current diagnostic state is available with its uncertainty quantified. It has been noted that several material failure modes occur, after initiation phases, as a consequence of a positive-feedback mechanism.