{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Mechanical Stress - ENGRI 111 Mechanical Response Click to...

Info icon This preview shows pages 1–18. Sign up to view the full content.

View Full Document Right Arrow Icon
Click to edit Master subtitle style ENGRI 111 Mechanical Response
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Bridges Strong so safety is not compromised
Image of page 2
Airplanes Al alloy or Carbon composites Lightweight Strong Cyclic loading during take-off and landing
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Sports Equipment Strength Weight I mpact strength
Image of page 4
Electronic Devices Withstand stresses developed during heating and cooling
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Optical Fibers Strength to withstand stresses encountered during application
Image of page 6
Hard Drives Al alloy or glass-ceramic Strong enough not break or crack during operation/rotation at high speeds
Image of page 7

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
MEMS & NEMS Robust so they will not fail
Image of page 8
Implants Ti alloys (biocompatible) Strength and toughness Last for many years ocw.mit.edu
Image of page 9

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Click to edit Master subtitle style WHAT IS STRONG?
Image of page 10
Design Rules Strong Stiff Ductile Tough
Image of page 11

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Stress (Cause) Stress (σ) = Force (N)/Area (m2) Pa: N /m2 MPa = 106 Pa GPa = 109 Pa
Image of page 12
TENSILE COMPRESSIVE Type of Stresses
Image of page 13

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Type of Stresses BENDING SHEAR
Image of page 14
Strain (Effect) Strain = change in dimensions ( l)/(length, l0) ε Δ Unit-less What does = 1 mean? ε Elastic strain: fully recoverable, nor permanent Metal spring stretched by a small amount Plastic strain
Image of page 15

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Elastic/Plastic Deformation Load bearing application no plastic deformation Shaping materials Permanent (plastic deformation)
Image of page 16
Mechanical Masurements www.secam.ex.ac.uk
Image of page 17

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 18
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern