Solid Mechanics Research Prof. N. Chandrashekar Prof. D. Cronin Prof. G. Glinka Prof. K. Inal Prof. H. Jahed Prof. HJ Kwon Prof. S. Lambert Prof. J. Medley Prof. A. Salehian Prof. P. Sullivan Prof. M. Worswick (Biomechanics) (Impact Biomechanics, Pipeline integrity) (Fatigue/Fracture) (Forming/Plasticity) (Fatigue/Plasticity) (Constitutive Modeling/Biomaterials) (Design) (Biomechanics, Tribology) (Vibrations, Smart Materials) (Composites, Manufacturing) (Forming and Impact) Biomechanics of Knee Injury Professor N. Chandrashekar Professor J. Medley (jmedley@mecheng1.uwaterloo.ca) and Professor N. Chandrashekar (nchandra@uwaterloo.ca) Impact Biomechanics Professor D. Cronin The goal of impact biomechanics research is to protect the human body from 'serious' injury or trauma (anatomical rearrangement). The development and design of improved safety requires the ‘test that cannot be done…” Detailed Torso Model Hybrid III Family Professor D. Cronin (dscronin@uwaterloo.ca) Full Body Model Full Body Model with Vehicle Integration Fatigue & Fracture Mechanics Information path for fatigue life estimation based on the ε-N method Professor G. Glinka GEOMETRY, Kf LOADING F MATERIAL σ E PSO 0 t ε Stress-Strain Analysis MATERIAL ½ Δε Damage Analysis 2Nf Fatigue Life Professor G. Glinka (gggreg@uwaterloo.ca) 4 Fatigue & Stress Analysis Laboratory Toward the lightest Body in White Professor H. Jahed Mg and other lightweight metal Fatigue characterization & modeling Cyclic plasticity modeling Front end mass of a mid-size car: 70 kg Steel 46 kg Al 30 kg Mg Damage parameter (MJ/m3) 10.0 Front end 1.0 Body in white 0.1 100 1000 10000 Life, N (cycles) Professor H. Jahed (hjahedmo@uwaterloo.ca) 100000 Biomechanics and Gel mechanics We are developing … Artificial Tissues Gel for Drug Delivery Nonconventional Mechanical Testing Cell Traction Force Measurement 7 Professor HJ. Kwon (hjkwon@uwaterloo.ca) Design & Fatigue and Fracture Professor S. Lambert Automotive Design Design Education Fatigue and Fracture 8 Professor S. Lambert (steve@uwaterloo.ca) Biomechanics & Tribology Professor J. Medley Simulator Wear of Hip Implants Hip Simulator Individual Channels Test Specimens Professor J. Medley(jmedley@uwaterloo.ca) Vibration & control of inflatable satellite systems sunlight shade Professor A. Salehian Thermally induced vibration of inflatable space structures upon passing the eclipse line Modeling gossamer membrane : dynamic behavior, designing vibration controller Energy harvesting using smart materials Inflation chamber Power harvesting using piezoelectric material for low power electronic devices 10 Professor A. Salehian(salehian@uwaterloo.ca) Composite Materials & Polymer modeling Professor P. Sullivan Experimental Characterization and Modeling of Thin-walled Plastic Components 1. Moisture Diffusion – Due to exposure to humid environments – Causes swelling of the material – Changes thermophysical and mechanical properties 2. Physical Aging – Structural molecular relaxation/rearrangement – Changes thermophysical and mechanical properties Two MASc positions in Fall 2010 – Hygrothermal degradation of electronic adhesives (RIM) – High temperature degradation in automotive fluid environments (DANA) 11 Professor P. Sullivan (Pearl@uwaterloo.ca) Forming & Automotive research Research to create THE CAR OF THE FUTURE Professor M. Worswick Metal Forming / Crashworthiness Damage Mechanics WatCAR- Waterloo Centre for Automotive Research Professor M. Worswick (worswick@lagavulin.uwaterloo.ca) WatCAR Materials and Manufacturing Auto Systems and Mechatronics Alternative Fuels WatCAR: Waterloo Centre for Automotive Research Environment Design Human Factors 56 professors, 20 research engineers and technicians, 200+ grad students Professor M. Worswick (worswick@lagavulin.uwaterloo.ca)