Time Left ; 01:50:58 Student question 0 \& \( \qquad \) \( \qquad \) (1) Show Transcribed Text Condition 1 as mexsured was not the maximum load condition. Calculate the tensile strength of this brass.
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Tensile strength is calculated by dividing the maximum force applied to the material by its cross-sectional area. Show more…
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Q.1 A brass alloy is known to have a yield strength of 275 MPa ,a tensile strength of 380 MPa, and an elastic modulus of 103 GPa .A cylindrical specimen of this alloy 12.7 mm in diameter and 1000 mm long is stressed in tension and found to elongate 2 mm . On the basis of the information given, is it possible to compute the magnitude of the load that is necessary to produce this change in length? If so, calculate the load. If not, explain why
Sri K.
8. A cylindrical specimen of steel having an original diameter of 13.4 mm is tensile tested to fracture and found to have an engineering fracture strength of 500 MPa. If its cross-sectional diameter at fracture is 11.2 mm, determine: a. The ductility in terms of percentage reduction in area. (8 points) b. The true stress at fracture. (8 points) c. Find the ratio between engineering fracture stress and true fracture stress. (1 point) Material | n | K (MPa) | K (psi) Low-carbon steel (annealed) | 0.21 | 600 | 87,000 4340 steel alloy (tempered @ 315°C) | 0.12 | 2650 | 385,000 304 stainless steel (annealed) | 0.44 | 1400 | 205,000 Copper (annealed) | 0.44 | 530 | 76,500 Naval brass (annealed) | 0.21 | 585 | 85,000 2024 aluminum alloy (heat-treated-T3) | 0.17 | 780 | 113,000 AZ-31B magnesium alloy (annealed) | 0.16 | 450 | 66,000
Adi S.
A brass alloy is known to have a yield strength of $240 \mathrm{MPa}(35,000 \mathrm{psi}),$ a tensile strength of $310 \mathrm{MPa}(45,000 \mathrm{psi}),$ and an elastic modulus of 110 GPa $\left(16.0 \times 10^{6} \mathrm{psi}\right) .$ A cylindrical specimen of this alloy $15.2 \mathrm{mm}(0.60 \mathrm{in.})$ in diameter and $380 \mathrm{mm}(15.0 \mathrm{in.})$ long is stressed in tension and found to elongate $1.9 \mathrm{mm}$ $(0.075 \text { in. }) .$ On the basis of the information given, is it possible to compute the magnitude of the load that is necessary to produce this change in length? If so, calculate the load. If not, explain why.
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