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Societal
Considerations in
Design
By IE Team
Learning Objectives _ EES
• Factors over which an Engineer has control that
effect the cost of the product
• Issues that are relevant to GREEN DESIGN
• Discuss recyclability/disposability issues
• A brief discussion on legal and ethical issues in
engineering design
• A study on Environmental, Economic and
Societal (EES) issues in Materials Science and
Engineering.
EES DESIGN EXAMPLE
Solar Roof
Environmentally
Economic Energy Generation
CAR Parking,
Clean Air,
Low Cost
For Society
Engineering Disasters
On January 28th, 1986, Space Shuttle Challenger was launched at 11:38am
on the 6-day STS-51-L mission. During the first 3 seconds of lift off the o-
rings (o-shaped loops used to connect two cylinders) in the shuttle’s right-
hand solid rocket booster (SRB) failed.
http://geovanyku.blogspot.in/2012/09/top-10-worst-engineering-failures.html
Engineering Disasters
Tacoma Narrows Bridge collapse – The third longest suspension bridge of the
world at that time, Tacoma Narrows Bridge had been in operation for just
more than five months before it crashed into the Puget Sound of Washington
on November 7th, 1940.
Its main span collapsed
under winds blowing at 40
miles per hour.
Engineering Disasters
Eschede Train Disaster
On June 3, 1998, a high-speed train derailed near the village of Eschede in
Germany, killing 101 people and injuring 88 more. A single fatigue crack in
one wheel failed, causing the train to derail at a switch. A contributing factor
was the use of welds in the carriage bodies that “unzipped” during the crash.
Within weeks of the crash, all wheels of a similar design were replaced with
mono block wheels.
Engineering Disasters
Hyatt Regency Walkway Collapse
On July 17, 1981, at the Hyatt Regency Kansas City in Kansas City, Mo., two
connected walkways collapsed and fell into the lobby, killing 114 people and
injuring 216 more. An investigation revealed a structural engineering flaw in
the way the bolts and rods were secured. The engineering firm consulting on
the project was found to be in gross negligence, misconduct and
unprofessional conduct.
Engineering Disasters
Fukushima Reactor Meltdown
Following the earthquake and tsunami on March 11, 2011, the Fukushima
reactor melted down, releasing radioactive material into the ground and
ocean. While exacerbated by the earthquake, a report claims that the
meltdown was a manmade disaster caused by poor regulation. Wrote Daily
Tech, “The Fukushima nuclear disaster shows the danger of using ancient
reactor designs in flood-prone regions without proper precaution. The accident
stands as a stirring cry to decommission older reactors and move to modern
designs.”
Engineering Disasters
The Deepwater Horizon was an offshore drilling unit with the ability to drill
down to 30,000 feet. On April 20, 2010, while drilling an exploratory well, the
rig exploded, killing 11 workers and setting the stage to release 4.9 million
barrels of oil that devastated the area around the Gulf of Mexico. The National
Commission on the BP Deepwater Horizon Oil Spill said “several tests
indicated the cement put in place after the installation ... was not an effective
barrier to prevent gases from entering the well.” These same gases allowed the
explosion to occur.
Engineering Marvels
Economics of Engineering
There are three factors over which the
materials engineer has control and that affect
the cost of a product; they are
(1) Component design,
(2) The material(s) used,
(3) The manufacturing technique(s) that are
employed.
These factors are interrelated in that
component design may affect which material is
used, and both component design and the
material used will influence the choice of
manufacturing technique(s).
Environmental Issues
Basic Issues
Pollution Map
Total materials cycle
Recycling Issues in Material
Sciences
Technology Saving Lives
Technology Saving Lives
Reaching Remote Villages
Toothpaste Dispenser for
Arthritis Patients
Pacemaker
Needle Free Anaemia Testing
Medical Technology
Influence
FINAL LINK _ EES

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Societal Issues in Engineering Design

  • 2. Learning Objectives _ EES • Factors over which an Engineer has control that effect the cost of the product • Issues that are relevant to GREEN DESIGN • Discuss recyclability/disposability issues • A brief discussion on legal and ethical issues in engineering design • A study on Environmental, Economic and Societal (EES) issues in Materials Science and Engineering.
  • 3. EES DESIGN EXAMPLE Solar Roof Environmentally Economic Energy Generation CAR Parking, Clean Air, Low Cost For Society
  • 4. Engineering Disasters On January 28th, 1986, Space Shuttle Challenger was launched at 11:38am on the 6-day STS-51-L mission. During the first 3 seconds of lift off the o- rings (o-shaped loops used to connect two cylinders) in the shuttle’s right- hand solid rocket booster (SRB) failed. http://geovanyku.blogspot.in/2012/09/top-10-worst-engineering-failures.html
  • 5. Engineering Disasters Tacoma Narrows Bridge collapse – The third longest suspension bridge of the world at that time, Tacoma Narrows Bridge had been in operation for just more than five months before it crashed into the Puget Sound of Washington on November 7th, 1940. Its main span collapsed under winds blowing at 40 miles per hour.
  • 6. Engineering Disasters Eschede Train Disaster On June 3, 1998, a high-speed train derailed near the village of Eschede in Germany, killing 101 people and injuring 88 more. A single fatigue crack in one wheel failed, causing the train to derail at a switch. A contributing factor was the use of welds in the carriage bodies that “unzipped” during the crash. Within weeks of the crash, all wheels of a similar design were replaced with mono block wheels.
  • 7. Engineering Disasters Hyatt Regency Walkway Collapse On July 17, 1981, at the Hyatt Regency Kansas City in Kansas City, Mo., two connected walkways collapsed and fell into the lobby, killing 114 people and injuring 216 more. An investigation revealed a structural engineering flaw in the way the bolts and rods were secured. The engineering firm consulting on the project was found to be in gross negligence, misconduct and unprofessional conduct.
  • 8. Engineering Disasters Fukushima Reactor Meltdown Following the earthquake and tsunami on March 11, 2011, the Fukushima reactor melted down, releasing radioactive material into the ground and ocean. While exacerbated by the earthquake, a report claims that the meltdown was a manmade disaster caused by poor regulation. Wrote Daily Tech, “The Fukushima nuclear disaster shows the danger of using ancient reactor designs in flood-prone regions without proper precaution. The accident stands as a stirring cry to decommission older reactors and move to modern designs.”
  • 9. Engineering Disasters The Deepwater Horizon was an offshore drilling unit with the ability to drill down to 30,000 feet. On April 20, 2010, while drilling an exploratory well, the rig exploded, killing 11 workers and setting the stage to release 4.9 million barrels of oil that devastated the area around the Gulf of Mexico. The National Commission on the BP Deepwater Horizon Oil Spill said “several tests indicated the cement put in place after the installation ... was not an effective barrier to prevent gases from entering the well.” These same gases allowed the explosion to occur.
  • 11. Economics of Engineering There are three factors over which the materials engineer has control and that affect the cost of a product; they are (1) Component design, (2) The material(s) used, (3) The manufacturing technique(s) that are employed. These factors are interrelated in that component design may affect which material is used, and both component design and the material used will influence the choice of manufacturing technique(s).
  • 16. Recycling Issues in Material Sciences