slide1
Download
Skip this Video
Download Presentation
IE 553 Engineering of Human Work Dr. Andris Freivalds Class #4

Loading in 2 Seconds...

play fullscreen
1 / 8

IE 553 Engineering of Human Work Dr. Andris Freivalds Class #4 - PowerPoint PPT Presentation


  • 111 Views
  • Uploaded on

IE 553 Engineering of Human Work Dr. Andris Freivalds Class #4. IE 553 Engineering of Human Work Dr. Andris Freivalds Class #4. Other Fatigue Effects. Other Fatigue Effects. Joints. Types of joints: Synovial – articulating surfaces, surrounded by capsule (shoulder, knee)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'IE 553 Engineering of Human Work Dr. Andris Freivalds Class #4' - thuong


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1
IE 553

Engineering of Human Work

Dr. Andris Freivalds

Class #4

IE 553

slide2
IE 553

Engineering of Human Work

Dr. Andris Freivalds

Class #4

IE 553

joints
Joints

Types of joints:

  • Synovial – articulating surfaces, surrounded by capsule (shoulder, knee)
  • Fibrous – fibers bridge gap (skull)
  • Cartilage – cartilage bridges gap (vertebral discs in spinal column)

IE 553

synovial joint
Synovial Joint
  • Cartilage (cells 2%)
    • Collagen fibers (60%)
    • Proteoglycan gel (38%)
    • Poor regeneration
  • Liquid (synovial fluid)
    • Decreases friction
    • Through lubrication
      • Hydrostatic
      • Squeeze film
      • Hydrodynamic

IE 553

intervertebral discs
Intervertebral Discs
  • Role in body
    • Cushion impacts
    • Deform under loads
    • Transfer of fluids
  • Degeneration
    • Microfractures at high loads
    • Loss of fluids/solids
    • Drying up
    • Weakening of fibers
    • Catastrophic extrusion

IE 553

ad