Select one:O FS = 3.6FS = 4.05FS = 1.68FS = 1.94FS = 2.88 If a critical point at structural element is subjected to the stress shown on the 2D element, determine the factorof safety (FS) against rupture according to the maximum principal stress theory.The material has an ultimate tensile stress Sult = 500Mpa.100 Mpa80 Mpa150 MpaSelect one:ES = 3.6

Answered: Image /qna-images/answer/7a68948b-2155-45a1-a575-1acd40e3b89e.jpg

Answered: Select one: OFS = 3.6 OFS = 4.05 %3D O…

Engineering

Mechanical Engineering

Select one: OFS = 3.6 OFS = 4.05 %3D O FS = 1.68 %3D FS = 1.94 FS = 2.88 %3D

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.5.1P: The rails of a railroad track are welded together at their ends (to form continuous rails and thus...

See similar textbooks

Similar questions

The strength-to-weight ratio of a structural material is defined as its load-carrying capacity divided by its weight. For materials in tension, use a characteristic tensile stress obtained from a stress-strain curve as a measure of strength. For instance, either the yield stress or the ultimate stress could be used, depending upon the particular application. Thus, the strength-to-weight ratio RS/Wfor a material in tension is defined as Rs/w= in which a is the characteristic stress and 7 is the weight density. Note that the ratio has units of length. Using the ultimate stress Uas the strength parameter, calculate the strength-to-weight ratio (in units of meters) for each of the following materials: aluminum alloy 606I-T6, Douglas fir (in bending}, nylon. structural steel ASTM-A57.2, and a titanium alloy. Obtain the material properties from Tables [-1 and 1-3 of Appendix I. When a range of values is given in a table, use the average value.
The rails of a railroad track are welded together at their ends (to form continuous rails and thus eliminate the clacking sound of the wheels) when the temperature is 60°F. What compressive stress ?? =6.5×10-6 /? is produced in the rails when they are heated by the sun to 120"F if the coefficient of thermal expansion a = the modulus of elasticity E = 30 × 106 psi?
Repeat the previous problem using ? = 50° and stresses on the rotated element: sy1= 70 MPa, ??y1=-82 MPa, and tx1y1=-35 MPa.
Three round, copper alloy bars having the same length L but different shapes are shown, in the figure. The first bar has a diameter d over its entire length, the second has a diameter d over one-fifth of its length, and the third has a diameter d over one-fifteenth of its length. Elsewhere, the second and third bars have a diameter Id. All three bars are subjected to the same axial load P. Use the following numerical data: P = 1400 kN, L = 5m,d= 80 mm, E= 110 GPa. and v = 0.33. (a) Find the change in length of each bar. (b) Find the change in volume of each bar.
1. We can visualize the factor of safety for an arbitrary stress using a surface in principal stress space. For a ductile material that yields according to a von Mises criterion with a yield stress σy, sketch the von Mises surface in σ₁ - 02 space and sketch the stress surface that corresponds to a factor of safety FoS = 2. For a brittle material that yields according to a max normal (Rankine) criterion with a tensile strength Gyt and a compressive strength σvc = 20yt, sketch the yield surface and the surface that corresponds to a factor of safety FoS = 2.
The state of stress acting at a critical point on a wrench is shown in the figure. Pi P2 - 340 MPa Part A خ == .0 P₁ OY = Value P. Determine the smallest yield stress for steel that might be selected for the part, based on the maximum shear stress theory. Express your answer to three significant figures and include appropriate units. Units P110 MPa and EDIT ? C
A machine member part is subjected to fluctuating stress of σ = ax cos(8nt) The endurance limit of the material is 350 MPa. If the FoS used in the design is 3.5 Find the maximum value of ?
EHide bl OP=287 N OP=573 N Let's consider a rod having a solid circular cross-section with diameter of 4 mm and it is made of a material having a Young's modulus E = 200 Gpa and a Poisson's ratio of 0.3. If a tensile force F is subjected to that rod cross-section, the diameter becomes 3.998 mm. determine the applied force F. Select one: OF=10472 N OF=15708 N OF=6283 N O F= 4189N F = 13090 N OF= 5236 N Finish attempt.. US ACTIVITY O Test-Spring 2020-2021 Jump to...
Three metal rods are firmly attached to the walls and the middle rigid plate. Rod AB is made from stainless steel and rods CD and EF are made from 2014-T6 aluminum. If a balanced load is applied to the rigid plate, determine what the stresses are in the rods. Follow the sign convention that tensile stress is positive and compressive stress is negative. The parameter values are listed in the table above the figure. A parameter value units 470 mm 400 mm 40 mm 30 mm 30 KN cc 080 BY NO SA 2021 Cathy Zupke L₁ L2 d₁ d₂ P 4₁ B C E The stress in AB σAB= The stress in CD and EF: OCD = EF= d₂ L₂ MPa D F MPa
The frame supports the distributed load shown. Determine the state of stress acting at point E. (Figure 1) Figure 4 kN/m D. -1.5 m 1.5 m- -3 m 3m BA 20 mm 60 mm 20 mm 5m < 1 of 1 D E 50 mm Determine the normal tensile stress at point E. Express your answer using three significant figures and include the appropriate units. OE= Submit Part B μA TE= Value 1 Request Answer Value Units ELECT moord Determine the shear stress at point E. Express your answer using three significant figures and include the appropriate units. ? Units ?
80mm F 30mm 40mm 30mm d=15mm The steel plate shown is connected to the bracket by a 15mm bolt is subjected to tensile force F=70KN. Find out the average normal stress (N/mm2) at the plate. Select one: oa 281 Ob158 Oc 219 Dd187
Clear my choice Let's consider a rod having a solid circular cross-section with diameter of 4 mm and it is made of a material having a Young's modulus E= 200 Gpa and a Poisson's ratio of 0.3. If a tensile force Fis subjected to that rod cross-section, the diameter becomes 3.995 mm. determine the applied force F. Select one: O F= 5236 N OF=15708N O F= 13090 N OF=10472 N OF=4189 N O F=6283 N Clear my choice Finish attempt NEXT ACTIVITY MENG360 Test -Spring 2020-2021 Jup to