Answer
given,
l₀ = 50 mm
d₀ = 13.1 mm
l₁ = 53.7 mm
d₁ = 12.6 mm
Area of cross section
A = 134. 782 mm²
The strain is
= 0.074
the tensile modulus of A356 aluminium is
E = 72.4 GPa
The stress is
σ = εE
= 72.4 × 10⁹ × 0.074
= 5357.6 × 10⁶ Pa
σ = 5357.6 MPa
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