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Jon Wren, Ph.D., P.E.
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<br />Wren JR, Borja RI. Micromechanics of granular media Part II: Overall tangential moduli and
<br />localization model for periodic assemblies of circular disks. Computer Methods in Applied
<br />Mechanics and Engineering 1997; 141:221–246.
<br />
<br />Borja RI, Wren JR. Micromechanics of granular media Part I: Generation of overall
<br />constitutive equation for assemblies of circular disks. Computer Methods in Applied Mechanics
<br />and Engineering 1995; 127:13–36.
<br />
<br />Borja RI, Wren JR. Micromechanics of continuum models for granular materials. Proceedings,
<br />10th Conference on Engineering Mechanics, Vol. 1, pp. 497–500, Boulder, CO, 1995.
<br />
<br />Wren JR. Micromechanical macromechanical model of dense granular materials. Ph.D.
<br />Dissertation, Stanford University, 1994.
<br />
<br />Wren JR, Borja RI. Macro- and micro-mechanical model of granular materials. Proceedings,
<br />8th International Conference on Computer Methods and Advances in Geomechanics, pp. 731–
<br />736, Morgantown, WV, May 1994.
<br />
<br />Borja RI, Wren JR. Discrete micromechanics of elastoplastic crystals. International Journal for
<br />Numerical Methods in Engineering 1993; 36(22):3815–3840, November.
<br />
<br />Borja RI, Wren JR. On the bifurcation of elasto-plastic crystals during multiple slip. American
<br />Society of Civil Engineers Ninth Engineering Mechanics Conference, Texas A&M University,
<br />1992.
<br />
<br />Invited Presentations
<br />
<br />Wren JR, McCann D. Epic failures. William A. and Joyce R. Bell Excellence Fund for Civil
<br />Engineering Lecture, Western Kentucky University, October 5, 2010.
<br />
<br />Wren JR, Sykora D. Seismic Stability of Earth Dams, PROSPECT Course #247 – week-long
<br />training course for the U.S. Army Corps of Engineers, Huntsville, AL, August 31–September 4,
<br />2009.
<br />
<br />Wren JR, Shaller P. 2005 Landslides: Trends and observations from the trenches. California
<br />Club, Los Angeles, CA, May 11, 2005.
<br />
<br />Wren JR, Gupta A. Seminar for the evaluation of earthquake damage, engineering issues for
<br />post-earthquake damage assessment. Presented at California Association of Independent
<br />Insurance Adjusters Seminar on The New Fair Claims Regulations & Earthquake Standards,
<br />Pleasanton, CA, February 28, 2004; Pomona, CA, March 2, 2004; and Fresno, CA, March 4,
<br />2005.
<br />
<br />Wren JR. Designing, constructing, and operating a failure: Observations from post-failure
<br />investigations. Presented at Graduate Seminar, Department of Civil and Environmental
<br />Engineering, University of Houston, November 17, 2004.
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