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kondaur [170]
3 years ago
8

A series of experiments is conducted in which a thin plate is subjected to biaxial tension/compression, σ1, σ2 , the plane surfa

ces of the plate being traction-free (i.e. σ 3-O) Unbeknown to the experimenter, the material contains microscopic defects which can be idealized as a sparse distribution of small circular holes through the thickness of the plate. The hoop stress around the circumference of one of these holes when the plate is loaded in uniaxial tension σ is known to be σ 0-o(1-cos 2θ), where the angle θ is measured from the direction of the applied stress. Show graphically the relation that will hold at yield between the stresses ' σ2 applied to the defective plate if the Tresca criterion applies for the undamaged material (Hint: The hoop stress due to biaxial stress can be constructed by superposition. The maximum must occur at either θ = 0 or θ-m2, depending on the relative magnitude of σ, σ2 .)
Engineering
1 answer:
Andrew [12]3 years ago
3 0

Answer:

                                               

Explanation:

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Solution :

Given :

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The height of pouring cavity above parting surface is h = 300 mm

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$F=\rho g A h$

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3 0
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A 75- kw, 3-, Y- connected, 50-Hz 440- V cylindrical synchronous motor operates at rated condition with 0.8 p.f leading. the mot
Thepotemich [5.8K]

78950W the answer

Explanation:

A 75- kw, 3-, Y- connected, 50-Hz 440- V cylindrical synchronous motor operates at rated condition with 0.8 p.f leading. the motor efficiency excluding field and stator losses, is 95%and X=2.5ohms. calculate the mechanical power developed, the Armature current, back e.m.f, power angle and maximum or pull out torque of the motor

A 75- kw, 3-, Y- connected, 50-Hz 440- V cylindrical synchronous motor operates at rated condition with 0.8 p.f leading. the motor efficiency excluding field and stator losses, is 95%and X=2.5ohms. calculate the mechanical power developed, the Armature current, back e.m.f, power angle and maximum or pull out torque of the motor

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Answer:

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is correct

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Answer:

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zepelin [54]

Answer:

attached below

Explanation:

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