T. Leslie Youd

Last updated
T. Leslie Youd
NationalityAmerican
Education Brigham Young University
Iowa State University
Engineering career
Discipline Geotechnical engineering
earthquake engineering
InstitutionsBrigham Young University

T. Leslie Youd is an American geotechnical engineer and earthquake engineer, specializing in soil liquefaction and ground failure. He currently lives in Orem, Utah.

Contents

Education

Youd received his BES in civil engineering from Brigham Young University in 1964. He then attended Iowa State University where he received his PhD in civil engineering in 1967. He performed post doctoral study in soil mechanics and engineering seismology from 1975 to 1976 at Imperial College of Science and Technology in London. [1]

Research

Youd's research has been primarily concerned with the phenomenon of soil liquefaction, and the associated lateral spreading which can occur. Youd has published over 140 research papers. [2] Youd's best-known papers are on the prediction of the magnitude of lateral spreading. [3]

Awards and honors

Youd was elected to the National Academy of Engineering in 2005. [4]

Youd was made an honorary member of the American Society of Civil Engineers in 2006, an honor bestowed upon fewer than 0.2% of its membership. [5] He received the Distinguished Alumni Award in 2011 at Iowa State University.

Patents

Youd earned patent #4,840,230 for a system to retrievably install instruments into a borehole. [6]

Related Research Articles

<span class="mw-page-title-main">Soil liquefaction</span> Soil material that is ordinarily a solid behaving like a liquid

Soil liquefaction occurs when a cohesionless saturated or partially saturated soil substantially loses strength and stiffness in response to an applied stress such as shaking during an earthquake or other sudden change in stress condition, in which material that is ordinarily a solid behaves like a liquid. In soil mechanics, the term "liquefied" was first used by Allen Hazen in reference to the 1918 failure of the Calaveras Dam in California. He described the mechanism of flow liquefaction of the embankment dam as:

If the pressure of the water in the pores is great enough to carry all the load, it will have the effect of holding the particles apart and of producing a condition that is practically equivalent to that of quicksand... the initial movement of some part of the material might result in accumulating pressure, first on one point, and then on another, successively, as the early points of concentration were liquefied.

<span class="mw-page-title-main">Standard penetration test</span> Geotechnical engineering test of soil properties

The standard penetration test (SPT) is an in-situ dynamic penetration test designed to provide information on the geotechnical engineering properties of soil. This test is the most frequently used subsurface exploration drilling test performed worldwide. The test procedure is described in ISO 22476-3, ASTM D1586 and Australian Standards AS 1289.6.3.1. The test provides samples for identification purposes and provides a measure of penetration resistance which can be used for geotechnical design purposes. Various local and widely published international correlations that relate blow count, or N-value, to the engineering properties of soils are available for geotechnical engineering purposes.

Raymond David Mindlin was an American mechanical engineer, Professor of Applied Science at Columbia University, and recipient of the 1946 Presidential Medal for Merit and many other awards and honours. He is known as mechanician, who made seminal contributions to many branches of applied mechanics, applied physics, and engineering sciences.

Ralph Brazelton Peck was a civil engineer specializing in soil mechanics, the author and co-author of popular soil mechanics and foundation engineering text books, and Professor Emeritus of Civil Engineering at the University of Illinois Urbana-Champaign. In 1948, together with Karl von Terzaghi, Peck published the book Soil Mechanics in Engineering Practice, an influential geotechnical engineering text which continues to be regularly cited and is now in a third edition.

Arthur Casagrande was an American civil engineer born in Austria-Hungary who made important contributions to the fields of engineering geology and geotechnical engineering during its infancy. Renowned for his ingenious designs of soil testing apparatus and fundamental research on seepage and soil liquefaction, he is also credited for developing the soil mechanics teaching programme at Harvard University during the early 1930s that has since been modelled in many universities around the world.

<span class="mw-page-title-main">Peter Rolfe Vaughan</span>

Peter Rolfe Vaughan ACGI, DIC, FREng, FICE, FCGI, MASCE, FGS, was Emeritus Professor of Ground Engineering in the Geotechnics department of Imperial College London.

Thomas Denis O’Rourke is an American educator, engineer and serves as the Thomas R. Biggs Professor of civil & environmental engineering at the Cornell University College of Engineering. O’Rourke took his Bachelor of Science in civil engineering at Cornell's engineering college in 1970 and his doctorate at the University of Illinois Urbana-Champaign in 1975.

<span class="mw-page-title-main">Harry Bolton Seed</span> American academic (1922–1989)

Harry Bolton Seed was an educator, scholar, former professor at the University of California, Berkeley. He was regarded as the founding father of geotechnical earthquake engineering.

Harry George Poulos is an Australian of Greek descent civil engineer specialising in geotechnical engineering and soil mechanics, internationally known as an expert on soil behaviour and pile foundations.

<span class="mw-page-title-main">International Society for Soil Mechanics and Geotechnical Engineering</span>

The International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE) is an international professional association, presently based in London, representing engineers, academics and contractors involved in geotechnical engineering. It is a federation of 90 member societies representing 91 countries around the world, which together give it a total of some 21,000 individual members. There are also 43 corporate associates from industry. The current ISSMGE President is Dr Marc Ballouz.

Andrew John Whittle is Edmund K. Turner Professor of Civil and Environmental Engineering and former Head of the Department of Civil & Environmental Engineering at the Massachusetts Institute of Technology. He specializes in Geotechnical Engineering and more particularly in numerical and constitutive modelling.

<span class="mw-page-title-main">Sarah Springman</span> British-Swiss triathlete, civil engineer, and academic

Dame Sarah Marcella Springman is a British-Swiss triathlete, civil engineer, and academic. She was educated in England and spent much of her career in Switzerland. She is a former rector of the Swiss Federal Institute of Technology in Zurich and currently Principal of St Hilda's College at the University of Oxford.

<span class="mw-page-title-main">Donald Van Norman Roberts</span> American engineer

Donald Van Norman Roberts was a civil, geotechnical and environmental engineer from the United States, and advocate for sustainability developments in engineering.

<span class="mw-page-title-main">Robert Kayen</span> American Civil Engineer

Robert Kayen is a civil engineer, geologist, and Professor at the University of California, Berkeley in the Department of Civil and Environmental Engineering. He is a leading international expert in the fields of earthquake engineering, seismic soil liquefaction, and seismic displacement analysis of ground failures. Kayen's research focuses on geotechnical engineering, engineering characterization of natural hazards and extreme events, and earth science aspects of civil engineering. His works have been applied in earthquake engineering design of improved ground, building foundations, bridge abutments, lifeline, and environmental systems.

Clyde N. Baker Jr. was an American geotechnical engineer who received awards for his work to design advanced foundations supporting tall structures. He was elected a member of the National Academy of Engineering in 2004. In 2008, he received the Award of Excellence from Engineering News-Record.

Thomas William Lambe was an American geotechnical engineer and an emeritus professor at the Massachusetts Institute of Technology.

Jorge G. Zornberg is Professor and Joe J. King Chair in Engineering in the geotechnical engineering program at the University of Texas at Austin. He has over 35 years' experience in geotechnical and geoenvironmental engineering. He is also one of the pioneers of geosynthetics.

<span class="mw-page-title-main">Geoffrey Eustace Blight</span> South African geotechnical engineer

Geoffrey Eustace Blight was a professor in the School of Civil Engineering at the University of Witwatersrand (Wits), serving twice as head of department.

Edward Kavazanjian Jr. is an American civil engineer who specializes in geotechnical engineering. He is the Ira A. Fulton Professor of Geotechnical Engineering at the Arizona State University School of Sustainable Engineering and the Built Environmental.

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References

  1. "T. Leslie Youd" (PDF). Brigham Young University. Retrieved 5 June 2007.
  2. "T. Leslie Youd Publications". Brigham Young University Department of Civil and Environmental Engineering. 2003.
  3. Youd, T. Leslie; Hansen, Corbett M.; Bartlett, Steven F. (December 2002). "Revised Multilinear Regression Equations for Prediction of Lateral Spread Displacement". Journal of Geotechnical and Geoenvironmental Engineering. 128 (12): 1007–1017. doi:10.1061/(ASCE)1090-0241(2002)128:12(1007).
  4. "Les Youd Elected to National Academy of Engineering". BYU College of Engineering and Technology College News. February 2005. Archived from the original on 15 August 2007.
  5. Buhrman, Joan (7 July 2006). "Nationally Recognized Local Engineer Named Honorary Member of Civil Engineering Society" (Press release). ASCE. Archived from the original on 30 October 2007.
  6. "Retrievable wedging system for coupling downhole devices into cased bore holes". Google Patent Search. Retrieved 5 June 2007.