A) A stainless steel bar 11.8 cm long is welded end to end to a copper bar 22.6 cm long. Each bar has a square cross section, 2.0 cm on a side. The free end of the stainless steel bar is kept at 100∘C by placing it in contact with steam, and the free end of the copper bar is kept at with 0∘C by placing it in contact with ice. Both bars are perfectly insulated on their sides. What...
Problem 5: Design of Idealized Compression Member A 20-ft long column is pinned at the bottom and fixed against rotation, but free to translate, at the top. It must support a service dead load of 110 kips and a service live load of 110 kips. a) Select the lightest W12 of A992 steel. Use the column load tables b) Select the lightest W18 of A992 steel. Use the trial-and-error process.
Use Method of Virtual Work. 1. The 10 ft long steel (E = 29,000 ksi) cantilever beam shown below has a fixed support at the left end (Point A). The beam supports a 10 kips (downward) load at Point B and a 50 k-ft "point couple" (clockwise) at the free end of the cantilever (Point C). Region AB is 6 ft long with moment of inertia IAB = 500 in". Region BC is 4 ft long with moment of inertia...
A lamp of mass M is hung off of a steel bar of mass m and length / (treat as known). The bar makes a M450 60° angle with the vertical wall. In order to prevent the steel bar from bending or snapping, a cable is hung off of the wall that connects at the end of the bar. The cable creates a 45° angle with the vertical wall. 60° a) Draw an extended free body diagram (not for a...
Find the lightest W section for a tension member made of A572 Grade 50 steel. The axial tension in the member due to dead load is 70 kips due to live load is 10 kips. The connections at the end of the member include 7/8 in diameter bolts, one per line.
AW12x14 A36 steel section is used as a column. If the column is 15 ft long with pin supports at each end, then the largest permissible compressive axial load is most nearly... O 783 kips O 21 kips 0 241 kips O 150 kips
Part Design/size the rectangular cross section of a steel bar which is fixed at one end and carries an axial force of 95 kip at the other end (the weight of the bar itself can be assumed to be small and negligible). The height h of the cross section shall be 1.3 times larger than the base b of it (i.e., h 1.3xb). After finding b and h, round each one of them up to the nearest half of an...
A steel bar is fixed supported at one end and pinned at the other. The strip temperature is raised until it buckles. Determine the temperature rise AT at which buckling occurS Data: a-20 mm, b-10 mm, L=5 m. Er = 200 GPa ?, = 11.7 10-6 / °C hrd 071 Fig. 10.18 Eective length of column for various end condibions I-k* A, k: radius of gyration.
2. A steel bar 20.00 cm long is welded end to end with a brass bar 15.00 cm long. Both bars are insulated perfectly on their sides and each has a cross section area of 5.0o cm2. The free end of the steel bar is kept at 100°C and the free end of the brass bar is kept at 0°C. Consider Ksteel 50.2 w/m-Co, kbrass 0.800 w/m-Co. Find: A. the temperature at the junction of the bars B. the rate...
1. A 10 cm long bar, measuring 1 cm in diameter is loaded under tension. Assuming yield occurs at a load of 500 N, which corresponds to a 0.7% elongation, determine the modulus of resilience of this bar