Biomaterials04_BiomechanicsI

Biomaterials04_BiomechanicsI - EBME 105: Biomechanics,...

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EBME 105: EBME 105: Biomechanics, Biomechanics, Biomaterials and Biomaterials and Tissue Engineering Tissue Engineering Biomechanics I Biomechanics I Christopher J. Christopher J. Hernandez Hernandez Glennan 615A Glennan 615A (216)-368-6441 (216)-368-6441 christopher.hernandez@cas christopher.hernandez@cas e.edu e.edu
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Biomechanics, Mechanobiology and Biomimicry Mechanical Performance of Biological “Machines” Mechanobiology: Mechanical Stimuli as a Regulator of Biological Processes Biomimicry: Using biological systems/materials to inspire artificial design
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Biomechanics, Mechanobiology, Biomimicry?
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Mechanical Properties of Materials ENGR 200 ECIV 310 EMAE 372 General Descriptions: “This steel rod is very stiff” “The rubber band is very elastic” “The plastic bag is soft, but very strong” Engineering Descriptions: Stress Strain Shear Stress, Shear Strain Yield Strength, Tensile Strength, Fracture Strength Resilience Toughness Hardness
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Structural Properties Strength: Max Load Stiffness: Change in Load per unit distance Fracture Two or more Pieces Kopperdahl et al. 2000 Lumbar Vertebra in Compression Stiffness Strength Fracture X
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Material Properties Not Same as  Structural Structural Properties Size Shape (both internal and external) Material Properties A phone book is made of paper but is still  hard to rip apart! QuickTime L and a TIFF (Uncompressed) decompressor are needed to see this picture.
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Material Properties Stress Load/Area Strain Deformation/Initial Length Modulus Slope of stress-strain curve Strength Ultimate stress (Load/area)
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Biomaterials04_BiomechanicsI - EBME 105: Biomechanics,...

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