Invited Talks

  1. Fracture at the Microscopic Lengthscale, Midwest Materials Surface Characterization Workshop, October 14th, Evanston, IL.
  2. Novel Strategies to Recycle Concrete using Nanotechnology and Data Science, Drexel University Department of Civil and Environmental Engineering, Nov 13th, Philadelphia, PA, USA.
  3. Fracture Toughness of 1D/2D-nanoreinforced Cement via Scratch Testing, A cracking approach to inventing tough new materials: fracture stranger than friction, The Royal Society, London, UK, October 19th 2020
  4. Effect of porosity on the mechanical response of geopolymer composites, 44th International Conference and Expo on Advanced Ceramics and Composites, Daytona Beach, FL, Jan 2020
  1. The future of Engineering Education: Practitioners and Academics, Plenary Session, 2018 Structures Congress, Panel Speaker, Fort Worth, TX, Apr 2018
  2. Understanding Fracture at the Nanoscale: From Butter to CO2 Geological Sequestration, Department of Civil and Environmental Engineering, University of Houston, Houston, TX, Apr 2018
  3. Nanomechanics Study of Fluid-Rock Reactions in Mt. Simon Sandstone, US DOE Energy Frontiers Research Centers Blue Team Meeting, Jan 2018
  4. Nanoscale Study of CO2-induced Geo-chemo-mechanical Alterations for Geological Carbon Sequestration: Case Study of the Illinois Basin Decatur Project, Department of Civil and Environmental Engineering, Stanford University, Palo Alto, CA, Jan 2018
  5. Influence of Nanoporosity on Strength of Inorganic Polysialates: A Molecular Dynamics Study, 42nd International Conference and Expo on Advanced Ceramics and Composites, Daytona Beach, FL, Jan 2018.
  6. Strength Properties of Geopolymer Composites Using a Theoretical and Numerical Approach, 41st International Conference and Expo on Advanced Ceramics and Composites, Daytona Beach, FL, Jan 2018.
  1. Fragility of Cortical Bone via Microscopic Scratch Testing, Department of Biomedical Engineering, Northwestern University, Evanston, IL, Nov 2017.
  2. Graduate School – Pathway to Success and Empowerment, Introduction to Graduate Education at Northwestern University, Oct 2017.
  3. Upscaling the Strength Characteristics of Geopolymer Composites via Atomistic Simulations and Micromechanics Modelling, National Center for Supercomputing Applications, Urbana, IL, April 2017.
  4. Fluid-Rock Reactions in Mt Simon Sandstone via Scratch Testing, GSCO2 Annual Review Meeting, Urbana, IL, March 2017
  5. Fracture Behavior of Geopolymer Concretes at the Microscopic Length-scale, 42nd International Conference and Exposition on Advanced Ceramics and Composites, Daytona Beach, FL, January 2017.
  1. Hierarchically-Structured Porous Materials, Department of Civil and Environmental Engineering, Johns Hopkins University, Baltimore, MD, December 2016.
  2. Scratch resistance of nano-engineered crumbed rubber concrete for sustainable applications in civil construction, School of Engineering, University of Birmingham, (Birmingham, UK), July 2016.
  3. Multi-Physics Characterization of Reservoir rock: Microscopic to Macroscopic Scale, Illinois Prairie Institute, May 2016.
  4. Nanomechanics of Hierarchically Structured Porous Materials: From Cortical Bone to Geopolymer Composites, Department of Civil and Environmental Engineering, Northwestern University, Evanston, IL Apr 2016.
  1. Exploration des Propriétés Mécaniques des Géo-matériaux à l’Echelle moléculaire, Laboratoire Navier, Ecole des Ponts- ParisTech (Paris, France), Nov 2015.
  2. Elucidating the Mechanical Resistance of Advanced Geo-composites at the Molecular Length-scale, Laboratoire de la Mecanique des Solides, Ecole Polytechnique (Palaiseau, France), Nov 2015.
  3. Elucidating the Mechanical Resistance of Advanced Geo-composites at the Molecular Length-scale, Department of Civil and Environmental Engineering, University of California, Los Angeles, Oct 2015.
  4. Multi-scale Characterization of organo-cements using Microscopic Scratch Tests and Statistical Nano-Indentation, Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Sep 2015
  5. Multi-scale modeling of nano-degradation and self-healing in biological and geological materials, U.S. Army Corps of Engineers Engineer Research & Development Center Construction Engineering Research Laboratory (CERL), IL, USA, May 2015.
  6. A Multi-scale Investigation of the Fracture Properties of Organic-inorganic Nanocomposites, Department of Civil and Environmental Engineering, Northwestern University, Evanston IL, USA, April 2015.
  1. As Tough As Iron: Gaining a Multi-scale Understanding of Materials Fracture Resistance, Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA, Oct. 2014.
  2. Multi-scale Toughness: Cracking the Shell of Materials Risk to Fracture, Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA, Sep 2014.
  1. Scratch Test: a New Approach For Multiscale Characterization of Fracture Properties, Department of Civil and Environmental Engineering, Howard University, Washington, DC, Oct 2013.
  1. Scratch Test: a New Approach For Multiscale Characterization of Fracture Properties, Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, Dec 2012.
  2. Scratch Test: a New Approach For Multiscale Characterization of Fracture Properties, Department of Mechanical and Civil Engineering, California Institute of Technology, Pasadena, CA, Nov 2012.
  3. Scratch Test: a New Approach For Multiscale Characterization of Fracture Properties, Department of Civil Engineering and Engineering Mechanics, Columbia University, New York, NY, Oct 2012.
  4. Scratch Test: a New Approach For Multiscale Characterization of Fracture Properties, Department of Civil and Environmental Engineering, Stanford University, Palo Alto, CA, Feb 2012.

Conference Presentations

  • Fracture Behavior of Metakaolin-based Geopolymers Reinforced with Carbon Nanofibers, 44th International Conference & Expo on Advanced Ceramics and Composites, Daytona Beach, FL, January 2020
  • Size Effect Law for Microscopic Scratch Testing, ASCE Engineering Mechanics Institute Technical Meeting 2019, California Institute of Technology
  • Fracture Assessment of Cortical Bone at Microscopic Length-scale, ASCE Engineering Mechanics Institute Technical Meeting 2019, California Institute of Technology
  • Influence of Structural Disorder on Strength Response of Polysialate Composites, 56th Annual Technical Meeting of the Society of Engineering Science, October 13 – 15, 2019, Washington University
  • Influence of Pore Structure on Failure Behavior of Geopolymer Composites, 56th Annual Technical Meeting of the Society of Engineering Science, October 13 – 15, 2019, Washington University
  • Representative Elementary Volume Modeling of Geopolymer Composites, 14th US National Congress on Computational Mechanics, July 17th – July 20th 2017, Montreal
  • Strength Properties of Geopolymer Composites Using a Theoretical and Numerical Approach, 42nd International Conference & Expo on Advanced Ceramics and Composites, Daytona Beach, FL, January 2018
  • Influence of Nanoporosity on Strength of Inorganic Polysialates: A Molecular Dynamics Study, , 42nd International Conference & Expo on Advanced Ceramics and Composites, Daytona Beach, FL, January 2018
  • Computational studies on the ductile-to-brittle transition during scratch testing, ASCE Engineering Mechanics Institute Technical Meeting 2018, Massachusetts Institute of Technology
  • Wear and strength characteristics of nano-engineered crumbed rubber concrete, 8th Advances in Cement-Based Materials, June 26th – June 28th 2017, Georgia Institute of Technology
  • Analytical and computational analysis of strength properties of geopolymer composites, 8th Advances in Cement-Based Materials, June 26th – June 28th 2017, Georgia Institute of Technology
  • Molecular dynamics study on the mechanical and fracture properties of geopolymer binders, 8th Advances in Cement-Based Materials, June 26th – June 28th 2017, Georgia Institute of Technology
  • Strength Properties of Particulate Potassium-Based Geopolymer Composites: A Computational Study, ASCE Engineering Mechanics Institute, June 4th – June 7th 2017, Omni San Diego
  • Rate-Independent Fracture Toughness of Organic-Rich Shale, ASCE Engineering Mechanics Institute, June 4th – June 7th 2017, Omni San Diego
  • Investigation of the Mechanical Properties of Geopolymer Binders, ASCE Engineering Mechanics Institute, June 4th – June 7th 2017, Omni San Diego
  • Fracture Behavior of Geopolymer Concretes at the Microscopic Length-scale, 41st International Conference & Expo on Advanced Ceramics and Composites, Daytona Beach, FL, January 2017
  • Ductile-to-Brittle Transition in Scratch Testing via the Energetic Size Effect Law: Macroscopic and Microscopic Length Scales, 54th Annual Technical Meeting of the Society of Engineering Sciences, July 25th – July 28th 2017, Northeastern University.
  • Fluid-Rock Reactions in Mt Simon Sandstone via Scratch Testing, 54th Annual Technical Meeting of the Society of Engineering Sciences, July 25th – July 28th 2017, Northeastern University.
  • Fracture Mechanisms of Micro-particulate Composites via Microscopic Scratch Tests, ASCE Engineering Mechanics Institute Conference, 2016, Vanderbilt University
  • Fracture Investigation of Organic Rich Shale: Microscopic to Macroscopic Scale, ASCE Engineering Mechanics Institute Conference, 2016, Vanderbilt University
  • Investigation of Bone Fragility at Microscopic Length Scales, ASCE Engineering Mechanics Institute Conference, 2016, Vanderbilt University
  • Creep and Durability of Calcium Aluminate Cement – Polyvinyl Alcohol Composites Using the Transformation Field Analysis Method, ASCE EMI International, 2016, Metz, France
  • Multiscale characterization of organo-cements using microscopic scratch tests and statistical nano-indentation, 6th Advances in Cement-Based Materials, July 20-22nd, Kansas State University, 2015.
  • Fracture Resistance of Biological Tissues: A Theoretical and Experimental Study, 2nd HealthCare Engineering Systems Symposium, September 14th 2015, University of Illinois at Urbana-Champaign
  • Rate-Dependent Toughness in Soft Materials via Microscopic Scratch Testing, Applied Mechanics and Materials Conference, June 29th – July 1st 2015, Seattle.
  • Micromechanical Bounds on the Fracture Toughness of Silica-Reinforced Polymer Micro-Composites, ASCE Engineering Mechanics Institute Meeting, June 16 – June 19th, Stanford University, 2015
  • Fracture mechanisms of microparticulate composites via macroscopic scratch testing, Fifteen Pan-American Congress of Applied Mechanics, May 18-21 2015, University of Illinois at Urbana-Champaign
  • Scratching to Predict the Rate-Dependent Fracture of Creeping Materials, 17th S. National Congress on Theoretical and Applied Mechanics, Michigan State University, June 15th – June 20th 2014, Michigan State University
  • From Butter to Bone Tissues: Assessing the Fracture Resistance via Scratch Testing, Society of Engineering Sciences 51st Annual Technical Meeting, Oct 1st –Oct 3rd 2014, Purdue University
  • Rate-Dependent Toughness in Soft Materials via Microscopic Scratch Testing, Society of Engineering Sciences 51st Annual Technical Meeting, Oct 1st –Oct 3rd 2014, Purdue University