All steel Fy- 50 ksi, Fu = 65 ksi E = 29,000 ksi 1) What is the purpose of "U" in equation Ae=U An ?
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- (1) Given A992 steel Ag = 10 in %3D KLy- 80, ry what is $ Pa=? = 60 the' column streugth design(40 How A Rismatic steel bar of a Square cro ss section (looxlo0)mm is loaoled by Compressive force P= 1300 K, the bar has length 2.5 m, Eg=200GPay V=0.3,determine the shortening 8, the increase in the dimensions of cross Section, the change in Volume DV of the bar? loomm loommREINFORCEB=(335mm)H=(435mm)
- Date: Course: Time: Pind the vertical movement os is 120 KN Stsel Aluminum 3 m Im B P=120 kat Aluminum A = 900 mm² E = 70 GN m² steel A= 600 mm E 200 GNM² %3DB C D Aluminum Steel Steel 40°-20% 10 ft Rigid E A 10 kipsCondition #1:E A structural support for a machine is subjected to a static compression load of 20 kN. The support is manufactured from a circular rod made from SAE 1040 Hot Rolled steel. Specify suitable diameter for the cross section of the rod based on the basic size. Steel data are available in Table A-10 from the textbook. Condition #2: The same structural support of the basic size determined in Condition 1 is subjected to a tensile load of 15 kN that is repeated several thousand times over the life of the machine. This load is not an addition to the 20 kN. Specify a suitable steel that is suitable to this application based on the basic size determined in Condition #1. Loading of Condition #1 does not apply here. Condition #3: The same structural support from Condition 2 is heated from room temperature of 25°C. The support is placed inside a frame on both ends. There is a total clearance of 0.2 mm between the support and its frame. Initial length of the rod is 200 mm. Specify the…
- Q2\ A compound bar consisting of bronze, aluminum, and steel segments is loaded axially as shown in the figure. Determine the maximum allowable value of P if the change in length of the bar is limited to 2 mm and the working stresses prescribed in the table are not to be exceeded. A (mm') E (GPa) Ow (MPa) =TTT Aluminum Bronze 450 83 120 3P Bronze Steel 2P P AP- Aluminum 600 70 80 Steel -0.6 m→l- - 1.0 m- H-08 m- 300 200 140A 6m long solid bar of circle section has 140mm diameter for aluminum for length of 4m, while it has 120mm diameter for a length of 2m for steel bar, as shown in figure. Find the elongation of the bar, when it is subjected to an axial tensile force of 300 kN. Take Est-200GPa, Eal- 70 GPa. (30 marks) 140 I *** 300 Kn Aluminum (30 marks) 4 m Steel 2 m 300 Kn 120Find the lightest S-shape for the beam shown if the working stress in bending is 175 MPa. What is the maximum bending stress in the beam selected? 50 kN/m 4 m -2.4 m· -x X- TABLE B-3 Properties of I-Beam Sections (S-Shapes): SI Units Flange Axis Y-Y Web X-X spxy Mass Area Width ıdə (wu) Thickness thickness Pl1 = S (10³ mm³) yli^ = 4 (10° mm*) (u) 27.7 27.7 22.1 Designation (10° mm*) (ww) 20.3 (ww) 38.9 („ww) (ww) (ww) 081 158 006 77 622 622 204 1 320 1 220 081 x 019S 4 230 240 34.5 338 × 158 x 149 x 134 007 184 15.7 3930 3 260 247 O'ZE 19.7 320 001 07 6'6E 32.3 006 81 00 I 15 200 149 6'81 15.9 166 937 677 234 019 215 134 181 22.1 090 € 2870 019 18.6 205 33.0 611 22.1 12.7 874 241 17.5 197 61I x 34.0 019 S510 × 143 143 18 200 16300 14 200 12 500 91S 91S 183 23.4 23.4 20.2 20.3 16.8 S69 653 2 700 20.8 228 x 128 x 112 × 98.2 128 112 33.8 34.5 29.5 179 961 2 540 007 194 19.4 80s 508 216 152 162 16.1 533 001 7 1950 12.3 98.2 20.2 12.8 495 6SI 11.4 144 30.2 661 S460 × 104 104 13 200 457 6SI…
- What is the value of reduction factor of the beam, if the stress in the steel is 400 MPa, and the Modulus of Elasticity of the Steel is 200,000 MPa. O 0.671 0.692 O 0.660 O 0.650 None of the Choices O 0.681Question Three Three bars each made of different materials are connected together and welded to the two walls when the temperature is T,= supports when the temperature becomes T,= 12°C. The material properties and cross- sectional area of each bar are given in the figure. ... 18°C. Determine the force exerted on the (rigid) %3D %3D Steel Brass Сopper Est = 200 GPa as = 12(10-")/°C abr = 21(10¬)/°C acu Ebr 110 GPa Ecu 130 GPa 17(10 )/°C %3D Acu 515 mm2 450 mm2 %3D Ast 200 mm2 Apbr 300 mm- 200 mm 100 mm6. Give the properties table below. A992 Steel 7178 T76 Aluminum Yield Strength 50 ksi 73 ksi Ultimate strength 75 ksi 85 ksi Modulus of Elasticity 29,000 ksi 10,500 ksi Assume you are designing a rectangular member with a specific allowed height. For a design where deflection criterion controls which material would require a larger cross section? For a design where tension stress controls, which material requires the larger cross section?