Question

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The A992 steel ( E200 GPa 6.75 GPa 032) dril shaft of an oil well extends 3600 m into the ground. Assuming that the pipe used to drill the well is suspended freely from the demick at Afind the elongation of its end with respect to the foxed end at A The shall consists of three different sizes of pipe, AB BC, and CD, each having weight per unit length and cross-sectional area indicated in the Table, and lengths on the figure For assistance, the internal normal force (N) diagram plotted from A to D has been also provided to you where point (1) is (0, 152.7), point (2) is (1500, 717) and point (3) is (3000, 16.2) Segments of Dr Shat Segment wiNim) A (mm) AB 54 1511 BC 37 1106 CD 27 721 N(x) (kN) o AAB WAB 1500 m B -- 2 Apc Wвс 1500 m С Aco WCD 600 m 3000 1500 3600 (m) D

Answer 1

3* (2 Solution P(x) dx Aca) E figurenhet 1600 Соо 1x 721 x 200х10 1500 33xt 16 200 100 х200х3 + s4xt 7 700 1511x 200x10 л 22 3+x { гоо + 16 Zooy1500 2- 221 x 200 xtos tok xoo xfo? ГЧx sou- + 25 500 x 100 (Tii x200 x to3 N 0 0 331 +o-L48 fo.99 co o - 888 м