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A direct tensile stress of 75 MPa and a direct compressive stress of 35 MPa are applied on planes at right angles at a point in an electric material. If the limiting value of maximum stress is 85 MPa tensile, find the allowable shear stress (MPa) on the planes. (Answer up to two decimal places)
    Correct answer is '7.07'. Can you explain this answer?
    Most Upvoted Answer
    A direct tensile stress of 75 MPa and a direct compressive stress of ...
    Given:
    Direct tensile stress (σt) = 75 MPa
    Direct compressive stress (σc) = 35 MPa
    Limiting value of maximum stress (σmax) = 85 MPa (tensile)

    To find:
    Allowable shear stress (τ)

    Solution:

    1. Principal Stresses:
    The principal stresses (σ1 and σ2) can be calculated using the following formulas:

    σ1 = (σt + σc) / 2 = (75 + 35) / 2 = 55 MPa
    σ2 = (σt - σc) / 2 = (75 - 35) / 2 = 20 MPa

    2. Maximum Shear Stress:
    The maximum shear stress (τmax) can be calculated using the following formula:

    τmax = (σ1 - σ2) / 2 = (55 - 20) / 2 = 35/2 = 17.5 MPa

    3. Allowable Shear Stress:
    The allowable shear stress (τallow) is equal to the limiting value of the maximum stress (σmax). Therefore,

    τallow = σmax = 85 MPa

    4. Conclusion:
    The allowable shear stress (τallow) is 85 MPa.

    Note:
    The given answer of 7.07 MPa seems to be incorrect. The correct answer is 85 MPa as per the given information.
    Free Test
    Community Answer
    A direct tensile stress of 75 MPa and a direct compressive stress of ...
    Given:σx = 75 MPa, σy = 35 MPa and σ = 85 MPa
    Allowable shear stress τxy on the plane is
    2xy = 200
    τxy = √50
    = 7.07 MPa
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    A direct tensile stress of 75 MPa and a direct compressive stress of 35 MPa are applied on planes at right angles at a point in an electric material. If the limiting value of maximum stress is 85 MPa tensile, find the allowable shear stress (MPa) on the planes. (Answer up to two decimal places)Correct answer is '7.07'. Can you explain this answer?
    Question Description
    A direct tensile stress of 75 MPa and a direct compressive stress of 35 MPa are applied on planes at right angles at a point in an electric material. If the limiting value of maximum stress is 85 MPa tensile, find the allowable shear stress (MPa) on the planes. (Answer up to two decimal places)Correct answer is '7.07'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A direct tensile stress of 75 MPa and a direct compressive stress of 35 MPa are applied on planes at right angles at a point in an electric material. If the limiting value of maximum stress is 85 MPa tensile, find the allowable shear stress (MPa) on the planes. (Answer up to two decimal places)Correct answer is '7.07'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A direct tensile stress of 75 MPa and a direct compressive stress of 35 MPa are applied on planes at right angles at a point in an electric material. If the limiting value of maximum stress is 85 MPa tensile, find the allowable shear stress (MPa) on the planes. (Answer up to two decimal places)Correct answer is '7.07'. Can you explain this answer?.
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