Polymer Mechanics Laboratory
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Characterization of the long-term viscoelastic behavior of polymers under uniaxial
and biaxial stress states and various environmental conditions.
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Accelerated life testing of
polymers under cyclic loading conditions.
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Linear and nonlinear viscoelastic fracture mechanics of polymers and polymer nanocomposites.
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Full-field noncontact
deformation measurements on solid polymers, the method is especially suitable
for the measurements of strains and strain gradients on soft polymers.
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Analytical solutions of viscoelastic structural problems,
and numerical solutions of linear and nonlinear viscoelastic
problems using finite element software such as ABAQUS.
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Nanoindentation using MTS Nano Indenter XP System with Dynamic Contact Module (DCM)
and Continuous Stiffness Measurement (CSM) Module for measurements of local
surface viscoelastic properties of coatings and other
very small amounts of polymers.
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Measurements and modeling of moisture diffusion rate in
polymers.
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Measurements of (linear or nonlinear) static and dynamic
coefficients of friction of polymers.
An MTS Nano
Indenter XP System
Compression using the Split Hopkinson Pressure Bar
Current Group Members
Dr. Huiyang Luo: Research Associate; Dynamic and high strain rate characterization of materials using modified SHPB (both tension and compression).
Dr. Guoqiang Lu: Senior Visiting Scholar, Tongji University;
Haowen Yu
Nitin P. Daphalapurkar
Fang Wang: Ph.D. student; Nanoindentation.
Gitogo Churu: M.S. student; Aerogel synthesis and characterization.
Junfeng Liang: M.S. student; Tympanic membrane characterization.
Boshen Fu: M.S. student; Controls and design.
Vishwas Upadhyaya: M.S. student; Web handling.
Sarah Staggs: M.S. student; Crosslinked aerogels
Edison Chan: M.S. student; Interface failure of composites
Cakiroglu, Dilekcakiroglu: M.S. student;
Past Members
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Jitendrakumar B. Bambharoliya, "Long-term Isochronal Stress-Strain Relations of Polymers," October 2007
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Yanli Zhang: M.S., Characterization of the Compressive and Fracture Behavior, as well as the Residual Tensile Strength of a Polyurethane Foam.
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Gang Huang, Ph.D., "Measurements of Viscoelastic Properties by Nanoindentation," December 2006
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Edmond Poh, M.S.; Web handling -- experimental aspects.
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Dr. Bo Wang: Research Associate.
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Jin Ma, Ph.D., “Multiscale Simulations using Molecular Dynamics, Discrete Dislocation Dynamics and Generlized Interpolation Material Point Method,” May, 2006.
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Atul Katti, M.S. “Characterization of the Thermo-mechanical Behavior of Crosslinked Silica Aerogel,” July, 2005
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Chakri Velvadapu, M.S., “Measurements of Two Independent Viscoelastic Functions Using Nanoindentation,” May, 2005
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Gyu-ho Kim, Ph.D., “Accelerated Life Testing of Polycarbonate under Fatigue Loading Conditions,” October, 2003
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Kenneth Fullwood, M.S. “Strength Comparison Between Freeform Fabricated Core and Nomex Core Composites,” December 2002
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Sampathkumar Periasamy, M.S. “Digital Image Correlation for Deformation Measurements Near a Crack.,” December 2002
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Amol Wani, M.S. “Relaxation Behavior of Polymers Used in Stereolithography Apparatus,” December 2002
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Jin Ma, M.S. “Shear Slitting of Aluminum Webs,” August 2002
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Saurabh Akolkar, M.S. “Material Property Characterization of Photo Epoxy Used in Freeform Composite Fabrication,” May 2001
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Harish Viswanathan, M.S. “Finite Element Simulation of Shear and Score Slitting Processes,” May 2001
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Guixiang Tan, M.S. “Thermo-mechanical Behavior of Polymers,” December 2000
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Balaji Ganesan, M.S. “Deformation Measurements by Digital Image Correlation: Implementation of Third-Order Displacement Gradients,” December 2000
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Paul D. Cary, M.S. “Digital Image Correlation for Large Deformation,” July 1999
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Santosh Menon, M.S. “An Experimental Investigation of Web Runnability and Razor Slitting,” December 1998
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Javed Iqbal, M.S. “An Exploratory Investigation of the Burr Formation in Shear Slitting of Plastic Webs,” November 1998