Elastic Modulus - Askmemetallurgy

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Asked: January 19, 2021In: Physical Metallurgy & Heat treatment

How to increase Elastic modulus and yield strength of a metal?

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Asked: June 22, 2020In: Physical Metallurgy & Heat treatment

GATE MT 2018 Q28. A glass fibre of 5 micron diameter is subjected to a tensile stress of 20 MPa. The surface energy and elastic modulus of this material are 0.3 Jm^-2 and 70 GPa, respectively. Pick the correct answer based on the information provided above: Note: The glass fibre contains a population of flaws of different lengths.

Poll Results

20.69%(A)The fibre will undergo brittle fracture ( 6 voters )

17.24%(B)The fibre will undergo plastic deformation, but not fracture ( 5 voters )

62.07%(C)The fibre will undergo elastic deformation, but not fracture ( 18 voters )

0%(D)The fibre will undergo buckling ( 0 voters )

Based On 29 Votes

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Asked: June 11, 2020In: Physical Metallurgy & Heat treatment

GATE MT 2019 Q22. A material, made up of alternating layers of metal A and B, is loaded as shown below. If the volume % of B is 25%, the elastic modulus (in GPa rounded off to one decimal) of the material is ____________. Given elastic moduli of A and B are 200 GPa and 100 GPa, respectively.

GATE MT 2019 Q22. A material, made up of alternating layers of metal A and B, is loaded as shown below. If the volume % of B is 25%, the elastic modulus (in GPa rounded off to one decimal) of the material is ____________. Given elastic moduli of A and B are 200 GPa and 100 GPa, respectively.

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Asked: April 11, 2020In: Physical Metallurgy & Heat treatment

GATE MT 2016 Q.51 For a polymer reinforced with 40 vol.% glass fiber, the elastic modulus (in GPa) along the transverse direction is ______. [Eglass fiber = 70 GPa; Epolymer = 3.5 GPa]

Poll Results

60%(A) 5.6 ( 12 voters )

5%(B) 8.1 ( 1 voter )

25%(C) 30.1 ( 5 voters )

10%(D) 43.4 ( 2 voters )

Based On 20 Votes

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