EGR 225 Big Sandy Community Compute the Values Mathematics Questions

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Mathematics

EGR 225

Big Sandy Community and Technical College

EGR

Description

Week Four Assignment

Ch. 9 - Stresses and Strains; Problems 9.2, 9.3, 9.6, 9.14, 9.18 (2.5 po ints e ach; 12.5 po ints t otal)

Ch. 10 - Properties of Materials; Problems 10.1, 10.2, 10.5, 10.6, 10.10 (2.5 points each; 12.5 points total)

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1

Assignment
9.2
Stress:
𝐹

𝜎=𝐴=

113.1

113.1

=

𝜋 2
𝑑
4

𝜋 2
6
4

= 4 𝐾𝑠𝑖 (compressive)

9.3
𝐹

𝜎𝐵𝐶 = 𝐴 = 𝜋
4

𝐹

75
1.752

= 31.18 𝐾𝑠𝑖 (tensile)

75

𝜎𝐵𝐴 = 𝐴 = 2×2 = 18.75 𝐾𝑠𝑖 (tensile)
9.6
𝐹

𝜎𝐴 = 𝐴 = 𝜋
4

𝐹

10

1.252

= 8.14 𝐾𝑠𝑖 (compressive)

22

𝜎𝐵 = 𝐴 = 2×2 = 5.5 𝐾𝑠𝑖 (compressive)
9.14
𝜹

𝟏.𝟐

𝜹

𝟎.𝟓

(a)𝝐 = 𝑳 = 𝟏𝟎𝟎×𝟏𝟐 = 𝟎. 𝟎𝟎𝟏; L=1200 in, Delt...


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