An alloy to be used for a spring application must have a modulus resilience of at least 0.72 * 106 J/m3 (0.72 * 106 Pa). What must be its minimum yield strength (in MPa) ? Assume that the modulus of elasticity for this alloy is 101 GPa.

Question

Jaden Barnett

Engineering

27 January, 06:32

An alloy to be used for a spring application must have a modulus resilience of at least 0.72 * 106 J/m3 (0.72 * 106 Pa). What must be its minimum yield strength (in MPa) ? Assume that the modulus of elasticity for this alloy is 101 GPa.

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Answers (1)

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Osvaldo Krause · Answer 1

Answer

Modulus of resilience R = 0.72*10^6Pa

Minimum yield Y=?

Modulus of elasticity E=101*10^9 Pa

Recall

Y=✓ (2RE)

Y=✓ (2*0.72*10^6*101*10^9)

=381365966Pa