Ian D. Williams
Work Experience
Exponent - Associate January 2023 - Present
Concrete forensics
Structural failure analysis
Public utility systems auditing
CDM Smith - Structural Engineer 2 August 2020 - December 2022
Design of environmental and water-containing structures
Concrete mix design evaluation and forensic investigation of existing structures
FEMA project consulting and data tool development
Professional Licenses
Professional Engineer, Civil - California
License #: 95742
Education
University of California, Berkeley – Berkeley, CA August 2014 – May 2019
Ph.D. in Civil and Environmental Engineering – Structural Engineering Mechanics and Materials
Thesis: Rethinking Concrete Ductility in Compression
Minors: Numerical Mathematical Methods, Computational Fracture Mechanics
University of California, Berkeley – Berkeley, CA August 2013 – May 2014
M.S. in Civil and Environmental Engineering – Structural Engineering Mechanics and Materials
Purdue University – West Lafayette, IN August 2009 – May 2013
B.S. in Civil Engineering,
Research Experience
Postdoctoral Research Scholar, UC Berkeley June 2019 – December 2019
Research Advisor: Hayden Taylor
Funding sources: Singapore National Research Foundation
· Analyze and design new systems for energy efficient cooling and dehumidification specific to tropical climates
· Use novel fabrication methods to manufacture prototype heat exchangers with minimal cost and embedded energy
· Test prototype assemblies under lab conditions and in situ in Singapore
· Advise graduate and undergraduate research assistants
Graduate Student Researcher, UC Berkeley August 2016 – May 2019
Research Advisors: Claudia P. Ostertag, Hayden Taylor
Funding sources: Singapore National Research Foundation, Pacific Earthquake Engineering Research Center
· Development of new techniques for additive manufacturing of cementitious materials
· Hybrid simulation of corroded reinforced concrete bridge columns
· Design and test energy efficient, multifunctional façade systems
Graduate Student Researcher, SinBerBEST (Singapore Office) January 2016 – July 2016
Research Advisors: Claudia P. Ostertag, Hayden Taylor
Funding Sources: Singapore National Research Foundation
· Test the thermal and mechanical properties of double-skinned concrete façade panels
· Perform computational optimization of cementitious lattices to maximize strength and insulating properties while minimizing the amount of material used
· Use rapid prototyping methods to manufacture octet lattices for mechanical and thermal testing
Graduate Student Researcher, UC Berkeley January 2014 – December 2015
Research Advisor: Claudia P. Ostertag
Funding sources: National Science Foundation
· Test full-scale shear wall boundary elements to better understand the behavior of reinforced concrete elements constructed with HyFRC
· Conduct isolated compressive tests of reinforcing bars embedded in HyFRC and conventional concrete to compare buckling behavior
· Nonlinear finite element modeling of HyFRC and reinforcing bars to predict buckling response and material interaction
Undergraduate Researcher, Purdue University March 2013 – August 2013
Research Advisor: Santiago Pujol
Funding Source: National Institute of Standards and Technology
· Study structural damage caused by the Joplin Tornado
· Aid in the creation of a system to store and organize data
· Assess and categorize structural damage
Research Assistant, Bowen Civil Engineering Research Lab May 2011 – August 2011
· Assist Professors, Students, and Technicians in assembling test apparatus
· General lab maintenance
Teaching Experience
Graduate Student Instructor, Seismic Reinforced Concrete Design Fall 2016
· Lead weekly discussion sections
· Clarify difficult concepts and helped students with homework problems
Graduate Student Instructor, Civil Engineering Materials Fall 2014, Fall 2015, Spring 2017, Spring 2018
· Co-teach weekly lab sessions
· Guide students through various material experiments
· Help students gain a deeper understanding of material behavior
Technical Skills
Mechanical Testing
· Strength, Toughness, Hardness, Fracture, Abrasion Resistance, Fatigue
Thermal Testing
· Thermal Transmittance, Solar Heat Gain
Computational
· Nonlinear Finite Element Analysis
· Nonlinear Structural Analysis
· Programming – Matlab, Python, Tcl
Relevant Coursework
Linear and Nonlinear Finite Element Methods, Linear and Nonlinear Structural Analysis, Structural Dynamics, Civil Engineering Materials, Continuum Mechanics, Fracture Mechanics, Numerical Mathematical Methods, Numerical Solutions to Differential Equations, Advanced Matrix Computations
Awards
Siemens Engineering for Change Design Challenge Winner 2020
Outstanding Graduate Student Instructor Award (for courses taught in 2018) Spring 2019
Strategic Research Fellowship Spring 2017
Popert Fellowship Fall 2015, Fall 2016
Departmental Fellowship Fall 2013 – Spring 2014
Publications
Williams, I. D., Arteta, C., Shao, Y., & Ostertag, C. P. (2022). Hybrid fiber reinforced concrete special shear wall boundary element in compression. Engineering Structures (View on ScienceDirect)
Williams, I. D., Arteta, C., & Ostertag, C. P. (2017). Experimental Response of a HyFRC Boundary Element Under Pure Compression. 16th World Conference on Earthquake Engineering. Santiago, Chile. pp. 1092.
Williams, I. D., Arteta, C. A., & Ostertag, C. P. (2018). Computational Buckling Response of Reinforcing Bars Embedded in Hybrid Fiber Reinforced Concrete ( HyFRC ). In G. Meschke, B. Pichler, & J. G. Rots (Eds.), Computational Modelling of Concrete Structures (EURO-C 2018) (pp. 561–567). Taylor & Francis, London.
Aghdasi, P., Williams, I.D., Salazar, B., Panditi, N., Taylor, H. K., Ostertag, C. P. (2018) Lightweight Octet-Truss Engineered Composite (OTEC) for Façade and Flooring Systems. Composite Structures.
Presentations
16th World Conference on Earthquake Engineering 2017
· Oral Presentation – Experimental Response of a HyFRC Boundary Element Under Pure Compression
· Chairman of general session on Special Structures
Pacific Earthquake Engineering Research Center Annual Meeting 2018
· Oral Presentation – Hybrid Simulation and Seismic Testing of Environmentally Damaged Bridges
EURO-C Computational Modeling of Concrete and Concrete Structures 2018
· Oral Presentation – Computational Buckling response of Reinforcing Bars Embedded in Hybrid Fiber Reinforced Concrete (HyFRC)
Digital Concrete, ETH Zurich 2018
· Oral Presentation – Octet Truss Engineered Composite (OTEC)
References
Claudia P. Ostertag, T.Y. and Margaret Lin Professor of Civil Engineering
University of California, Berkeley
Hayden Taylor, Assistant Professor of Mechanical Engineering
University of California, Berkeley
Principal, Structural Engineer and Technical Delivery Manager
CDM Smith