Dissemination of IT for the Promotion of Materials Science (DoITPoMS)

DoITPoMS Teaching & Learning Packages Stress Analysis and Mohr's Circle Questions
Stress Analysis and Mohr's Circle AimsBefore you startIntroductionSingle crystal vs polycrystallineRepresenting stress as a tensorFinding the principal stress tensorThe strain tensorYield criteria for metalsYield criteria for non-metalsSummaryQuestionsGoing further
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Questions

Quick questions

You should be able to answer these questions without too much difficulty after studying this TLP. If not, then you should go through it again!

  1. Use the interactive Mohr's circle below to help you with this question. Which of these stress states is not the same as the others?

    a
    b
    c
    d

  2. What kind of movement are these tensors - rotation, strain or both? Click on each and check the answer.

    a
    b
    c
    d

  1. The yield stress of an aluminium alloy in uniaxial tension is 320 MPa. The same alloy also yields under the combined stress state:

    Is the behaviour of this alloy better described by the von Mises or the Tresca yield criterion?

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