Saturday, December 25, 2010

Module 7: Toughness and Impact Test

Dear students
Answer the following questions:
  1. Define toughness and specify three factor that affect toughness.

  2. How the stress-strain curve can be used to express if the material tough or not.

  3. the figure below illustrates the stress-strain curve for three different materials, organize the three material from the toughest to the least tought.

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16 comments:

  1. UnknownDecember 27, 2010 at 9:06 AM

    1-a-temperature b-speed c-notch effect

    2-how is large area

    3-a-medium carbon steel b-low carbon steel c-high carbon steel

    ReplyDelete
  2. UnknownJanuary 1, 2011 at 2:11 AM

    1-a-temperature b-speed c-notch effect

    2-how is large area

    3-a-medium carbon steel b-low carbon steel c-high carbon steel

    ReplyDelete
  3. Fahad BamaesJanuary 2, 2011 at 8:29 PM

    1-temperature 2-speed 3-notch effect


    2-how is large area

    3-Medium carbon
    - Low carbon
    - High carbon

    ReplyDelete
  4. Mohammed Al AmoudiJanuary 2, 2011 at 8:35 PM

    1-temperature
    2-speed
    3-notch effect
    -----------
    2-how is large area

    3-Medium carbon
    - Low carbon
    - High carbon

    ReplyDelete
  5. ηαџĞhTŸ_βớỞờŸ .January 2, 2011 at 8:43 PM

    *( 1 )

    1-temperature
    2-speed
    3-notch effect

    *( 2 )
    how is large area

    *( 3 )
    Medium carbon
    Low carbon
    High carbon

    Mohammed Yousef 11-06

    ReplyDelete
  6. 90011January 2, 2011 at 8:43 PM

    1-temperature 2-speed 3-notch effect


    2-how is large area

    3-Medium carbon
    - Low carbon
    - High carbon


    hussain zaid alafifi

    11-06

    90011

    ReplyDelete
  7. h.yJanuary 2, 2011 at 8:44 PM

    1-a-temperature b-speed c-notch effect

    2-by comparing the area under the stress curves from the tensile

    3-1-a-medium carbon steel 2-low carbon steel 3-high carbon steel


    hazza yeslam

    ReplyDelete
  8. mohammed hamadJanuary 2, 2011 at 8:46 PM

    1-temperature 2-speed of loading 3-notch effect

    2-the area endicet the toughnes if the area is high this mean that material is tough

    3-medium
    -low
    -high
    Mohammed ALDhaheri
    11-06
    90050

    ReplyDelete
  9. UnknownJanuary 2, 2011 at 8:47 PM

    This comment has been removed by the author.

    ReplyDelete
  10. Hazza AlhajriJanuary 2, 2011 at 8:49 PM

    1. Define toughness and specify three factor that affect toughness.......?

    1- Temperature: Toughness decreases with decreasing temperature.
    2- Speed of loading: Toughness decreases as the rate of loading increases.
    3- Notch effect: Toughness decreases at the stress concentration point.


    2. How the stress-strain curve can be used to express if the material tough or not.....?

    1-Material is by comparing the areas under the stress strain.


    3. The figure below illustrates the stress-strain curve for three different materials, organize the three material from the toughest to the least tought...?

    1- Medium carbon steel.
    2- Low carbon steel.
    3- high carbon steel.

    Hzz hmd alhajri 11-06

    ReplyDelete
  11. UnknownJanuary 2, 2011 at 8:50 PM

    abdullah rabei ali banimoalla

    11-6




    1)
    -temperature
    -speed
    -notch effect
    __________________
    2)
    b-how is large area
    ________________________
    3)
    a-medium carbon steel
    b-low carbon steel
    c-high carbon steel

    ReplyDelete
  12. abdulla mohammedJanuary 2, 2011 at 8:50 PM

    1-temperature 2-speed of loading 3-notch effect

    2-the area endicet the toughnes if the area is high this mean that material is tough

    3-medium
    -low
    -high


    abdulla mohammed almuhiri

    90008

    11-06

    ReplyDelete
  13. hamdan obaidJanuary 2, 2011 at 8:51 PM

    1.)

    -Temperature: toughness
    decreases with decreasing
    temperature .

    -Speed of loading: toughness
    decreases as the rate of
    loading increases.

    -Notch effect: toughness
    decreases at the stress
    concentration points.

    2)-by comparing the areas under the stress strain curves from the tensile tests of these materials.

    3) -medium carbon steel.
    -low carbon steel .
    -High carbon steel.

    ReplyDelete
  14. abdulla khalfanJanuary 2, 2011 at 8:53 PM

    1.)

    -Temperature: toughness
    decreases with decreasing
    temperature .

    -Speed of loading: toughness
    decreases as the rate of
    loading increases.

    -Notch effect: toughness
    decreases at the stress
    concentration points.

    2)-by comparing the areas under the stress strain curves from the tensile tests of these materials.

    3) -medium carbon steel.
    -low carbon steel .
    -High carbon steel.


    Abdulla khalfan

    11-06

    ReplyDelete
  15. Mohammad AliJanuary 2, 2011 at 9:19 PM

    1- Temperature: Toughness decreases with decreasing temperature....

    2- Speed of loading: Toughness decreases as the rate of loading increases....

    3- Notch effect: Toughness decreases at the stress concentration point...




    2. How the stress-strain curve can be used to express if the material tough or not.....?




    1-Material is by comparing the areas under the stress strain.





    3. The figure below illustrates the stress-strain curve for three different materials, organize the three material from the toughest to the least tought...?



    1- Medium carbon steel.

    2- Low carbon steel.

    3- high carbon steel.



    Mohammad Ali Al-Jaberi 11-06

    ReplyDelete
  16. ALIJanuary 3, 2011 at 1:49 AM

    1- Temperature: Toughness decreases with decreasing temperature.
    2- Speed of loading: Toughness decreases as the rate of loading increases.
    3- Notch effect: Toughness decreases at the stress concentration point.



    1-Material is by comparing the areas under the stress strain.



    1- Medium carbon steel.
    2- Low carbon steel.
    3- high carbon steel.


    Ψ ÀŁĬ ÀBĎÙŁĦâmèéđ Ψ
    11-6

    ReplyDelete

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