1.
What will happen to a ductile material when tensile stress on it is increased beyond its yield strength?
2.
Consider a 1 m long massless rod with a 500 g metal ball attached to one of its ends. What is its moment of inertia about the other end, assuming the metal ball to be a point mass?
1. this will result into permanent deformation of material.
2.
I = m L^2
I = 0.500 x 1^2
I = 0.500 kg m^2
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1. What will happen to a ductile material when tensile stress on it is increased beyond...
Stress Analysis
3. A 20-mm diameter rod made ofa ductile material with a yield strength of 350 MPa is subjected to torque of 100 N.m and a bending moment of 150 N.m. An axial force is then gradually applied. Determine the value of force when the rod begins to yield. Solve the problem two ways using the (a) Tresca theory (Maximum shearing stress theory) and (b) von Mises theory (Maximum distortion energy theory) [12+12 points
3. A 20-mm diameter rod...
(A) Describe how fatigue damage happens in a ductile material. Draw sketches if needed. (B) If we maintain a constant stress σ-0.9G (GIs the yield strength) on a steel, will fatigue damage happen? Why?
(A) Describe how fatigue damage happens in a ductile material. Draw sketches if needed. (B) If we maintain a constant stress σ-0.9G (GIs the yield strength) on a steel, will fatigue damage happen? Why?
A square duct made of a
ductile material...
walls. The length of the duct is 4ft and is heated from room square duct made of ductile material is fixed between two A temperature Determine the following: a) Assuming all dimensions and material properties as variables, determine a formula for the change in temperature (AT) required to cause buckling of the duct, b) If the fixed wall supports are replaced by pin joints in both ends of the duct, what would...
A cantilever rod is loaded as shown in the Figure \(1(b)\). If the tensile yieldstrength of the material is \(300 \mathrm{MPa}\), determine the rod diameter usingi. \(\quad\) Maximum principal stress theoryii. \(\quad\) Maximum shear stress theoryiii. Maximum distortion energy theoryq1.docx
1-Determine the % elongation, yield stress and ultimate tensile
strength of the material tested above
2-Calculate the elastic modulus of the material tested above
3-If a 200mm cylindrical rod of the material tested above, with
radius 20mm, was subjected to a tensile load of 200kN, what would
the length be?
4-An underground wastewater steel pipe with 2mm walls carries an
ammonia solution of 40 g/m3. The pipe is in contact with
groundwater (assume 0 g/m3 ammonia). Determine the
diffusion rate...
If the yield stress for steel is assumed to be 36ksi, what is the plastic moment limit (MP) for the beam #1 and will the current design of beam fail (reach plastic moment) under the loading 1kip/ft? In case the loading is increased, will the beam reach that strength limit or buckling will occur first? The guide for checking local buckling limit is provided by AISC specification and attached below. (E=31,200ksi) #1= W21x55 beam spans 40ft, and is simply supported...
Assignment 01 TOT Mechanical Properties of Materials 1. A tensile test specimen has a gage length = 50 mm and its cross-sectional area = 100 mm. The specimen yields at 48,000 N, and the corresponding gage length - 50.23 mm. This is the 0.2 ent yield point. The maximum load of 87,000 N is reached at a gage length 64.2 mm. Determine (a) yield strength, (b) modulus of elasticity, and (c) tensile strength. (d) If fracture occurs at a gage...
1. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length increases to 2.01 m. What is the Poisson's Ratio of this material? 2. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length...
Renang Time! 1 hour, 10 minutes, 56 seconds. Question Completion Status: 1 2. 3 QUESTION 1 A 0.5 m long rod is supported at both of its ends. A fluctuating load of a min. 20,000 N and a max. of 50,000 N acted on the middle of the rod. If the rod has a diameter of 75 mm, and a concentration factor, kt-1.0, find the safety factor of the rod. The material properties of bar are as follows: ultimate strength...
Explanations and formulas used are greatly appreciated.
The figure below shows a 1-in. solid round shaft supported by self-aligning bearings at A and B. Attached to the shaft are two chain sprockets that are loaded as shown. What tensile yield strength must a ductile material have in order to provide a safety factor of 3 with respect to initial yielding at the point of the highest stress using the maximum- distortion-energy theory. Take F1 332 lb and F2 2F1. Submit...