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View Policies Current Attempt in Progress The pin-connected structure consists of a rigid beam ABCD and two supporting bars. Bar (1) is an aluminum alloy [E=79 GPa] with a cross-sectional area of A₁ = 780 mm². Bar (2) is a bronze alloy [E = 104 GPa] with a cross-sectional area of A2 = 460 mm². Assume L1-1.6 m, L2-2.1 m, a=0.6 m, b=1.8 m, and c=1.3 m. All bars are unstressed before the load P is applied; however, there is a 4-mm clearance in the pin connection at A. If a load of P = 58 kN is applied at B. determine: (a) the normal stresses σ1,02, in both bars (1) and (2). (b) the normal strains 1.2, in bars (1) and (2). (c) determine the downward deflection VA of point A on the rigid bar. (1) Answers: (2) σι = (b) E (C) VA i B eTextbook and Media (2) L2 D MPa, 01 με. με 42 mm. MPa. View Policies Current Attempt in Progress At an axial load of 19 kN, a 45-mm-wide by 15-mm-thick polyimide polymer bar elongates 2.7 mm while the bar width contracts 0.19 mm. The bar is 220 mm long. At the 19-kN load, the stress in the polymer bar is less than its proportional limit. Determine (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar thickness. Answers: (a) E= i GPa (b) v= (c) Athickness i mm eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer

View Policies Current Attempt in Progress The pin-connected structure consists of a rigid beam ABCD and two supporting bars. Bar (1) is an aluminum alloy [E=79 GPa] with a cross-sectional area of A₁ = 780 mm². Bar (2) is a bronze alloy [E = 104 GPa] with a cross-sectional area of A2 = 460 mm². Assume L1-1.6 m, L2-2.1 m, a=0.6 m, b=1.8 m, and c=1.3 m. All bars are unstressed before the load P is applied; however, there is a 4-mm clearance in the pin connection at A. If a load of P = 58 kN is applied at B. determine: (a) the normal stresses σ1,02, in both bars (1) and (2). (b) the normal strains 1.2, in bars (1) and (2). (c) determine the downward deflection VA of point A on the rigid bar. (1) Answers: (2) σι = (b) E (C) VA i B eTextbook and Media (2) L2 D MPa, 01 με. με 42 mm. MPa. View Policies Current Attempt in Progress At an axial load of 19 kN, a 45-mm-wide by 15-mm-thick polyimide polymer bar elongates 2.7 mm while the bar width contracts 0.19 mm. The bar is 220 mm long. At the 19-kN load, the stress in the polymer bar is less than its proportional limit. Determine (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar thickness. Answers: (a) E= i GPa (b) v= (c) Athickness i mm eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer

Materials Science And Engineering Properties
Materials Science And Engineering Properties
1st Edition
ISBN:9781111988609
Author:Charles Gilmore
Publisher:Charles Gilmore
Chapter6: Introduction To Mechanical Properties
Section: Chapter Questions
Problem 8ETSQ
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A high-density polvethelene (HD PE I9 - 780 MPaiy = 0.46 rod has a diameter of 70 mm before load Pis applied. In order to maintain certain clearances, the diameter of the rod must not exceed 72 mm when loaded. What is the largest permissible compressive load P that can be applied to the HDPE rod?
View Policies Current Attempt in Progress The pin-connected structure consists of a rigid beam ABCD and two supporting bars. Bar (1) is an aluminum alloy [E=79 GPa] with a cross-sectional area of A₁ = 780 mm². Bar (2) is a bronze alloy [E = 104 GPa] with a cross-sectional area of A2 = 460 mm². Assume L1-1.6 m, L2-2.1 m, a=0.6 m, b=1.8 m, and c=1.3 m. All bars are unstressed before the load P is applied; however, there is a 4-mm clearance in the pin connection at A. If a load of P = 58 kN is applied at B. determine: (a) the normal stresses σ1,02, in both bars (1) and (2). (b) the normal strains 1.2, in bars (1) and (2). (c) determine the downward deflection VA of point A on the rigid bar. (1) Answers: (2) σι = (b) E (C) VA i B eTextbook and Media (2) L2 D MPa, 01 με. με 42 mm. MPa.
Transcribed Image Text:View Policies Current Attempt in Progress The pin-connected structure consists of a rigid beam ABCD and two supporting bars. Bar (1) is an aluminum alloy [E=79 GPa] with a cross-sectional area of A₁ = 780 mm². Bar (2) is a bronze alloy [E = 104 GPa] with a cross-sectional area of A2 = 460 mm². Assume L1-1.6 m, L2-2.1 m, a=0.6 m, b=1.8 m, and c=1.3 m. All bars are unstressed before the load P is applied; however, there is a 4-mm clearance in the pin connection at A. If a load of P = 58 kN is applied at B. determine: (a) the normal stresses σ1,02, in both bars (1) and (2). (b) the normal strains 1.2, in bars (1) and (2). (c) determine the downward deflection VA of point A on the rigid bar. (1) Answers: (2) σι = (b) E (C) VA i B eTextbook and Media (2) L2 D MPa, 01 με. με 42 mm. MPa.
View Policies Current Attempt in Progress At an axial load of 19 kN, a 45-mm-wide by 15-mm-thick polyimide polymer bar elongates 2.7 mm while the bar width contracts 0.19 mm. The bar is 220 mm long. At the 19-kN load, the stress in the polymer bar is less than its proportional limit. Determine (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar thickness. Answers: (a) E= i GPa (b) v= (c) Athickness i mm eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer
Transcribed Image Text:View Policies Current Attempt in Progress At an axial load of 19 kN, a 45-mm-wide by 15-mm-thick polyimide polymer bar elongates 2.7 mm while the bar width contracts 0.19 mm. The bar is 220 mm long. At the 19-kN load, the stress in the polymer bar is less than its proportional limit. Determine (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar thickness. Answers: (a) E= i GPa (b) v= (c) Athickness i mm eTextbook and Media Save for Later Attempts: 0 of 5 used Submit Answer
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