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4 years ago

Area under the strain-stress curve up to fracture:______

Engineering

1 answer:

AlexFokin [52]4 years ago

4 0

Answer:

Area under the strain-stress curve up to fracture gives the toughness of the material.

Explanation:

When a material is loaded by external forces stresses are developed in the material which produce strains in the material.

The amount of strain that a given stress produces depends upon the Modulus of Elasticity of the material.

Toughness of a material is defined as the energy absorbed by the material when it is loaded until fracture. Hence a more tough material absorbs more energy until fracture and thus is excellent choice in machine parts that are loaded by large loads such as springs of trains, suspension of cars.

The toughness of a material is quantitatively obtained by finding the area under it's stress-strain curve until fracture.

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Answer:

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3 years ago

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3 years ago

A horizontal rigid bar ABC is pinned at end A and supported by two cables at points B and C. A vertical load P 5 10 kN acts at e

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Answer:

vertical load = 10 kN

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Yield stress on the cable = 400 MPa

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Explanation:

Data

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$\theta$ = tan⁻¹( $\frac{1.5}{1.5}$ )

= 45⁰

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3 years ago

Five kg of nitrogen gas (N2) in a rigid, insulated container fitted with a paddle wheel is initially at 300 K, 150 kPa. The N2 g

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Answer:

A) attached below

B) 743 KJ

C) 1.8983 KJ/K

Explanation:

A) Diagram of system schematic and set up states

attached below

<u>B) Calculate the amount of work received from the paddle wheel </u>

assuming ideal gas situation

v1 = v2 ( for a constant volume process )

work generated by paddle wheel = system internal energy

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<u>C) calculate the amount of entropy generated ( KJ/K )</u>

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attached below is the detailed solution

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3 years ago