91年 - 91 淡江大學 轉學考 工程力學#56330

科目：轉學考-工程力學 | 年份：91年 | 選擇題數：0 | 申論題數：10

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所屬科目：轉學考-工程力學

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申論題 (10)

【已刪除】1. Determine the forces in members AB, HB, and CF of the pin jointed truss as shown in Figure 1. (20%)
【已刪除】2. Determine the x and y coordinates of the centroid of the T-section shown in Figure 2. Then determine the moments of inertia about the centroidal axes, Ix and Ir (20%)
(a) 20,000 psi at proportional limit
(b) 24,000 psi at 0.2 percent offset yield point. Determine the total strain in the specimen when it is stressed to the yield point. (20%)
【已刪除】4. A solid circular steel shaft must carry a torque of 250 foot-pounds without twisting more i tha，4 degrees per foot of length. Determine the required dimensions for the shaft. (20%)
(1) which one is the most ductile material, (4%)
(2) which one is the material having the highest ultimate stress, (4%)
(3) which one is the material exhibiting nonlinear elastic behavior, (4%)
(4) which one is the most brittle material, (4%) and
(5) which one is the material with the highest stiffness (E). (4%)