stress 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Determine : 1. Stress, Soratn Care 2- elastic Zone 3- yield s bresscoy) 4-Plastic 2one 5- Utimate stress Cous 6- Elongation 7- propotional stress cops 8-fracturc Stress CoF)

Q: What is Hooke’s law for the 1-D system? Choices: The relation between normal stress and the…

A: solution, Hooke’s law is valid up to the proportional limit of a material. here we have 1 D system…

Q: 200 150 100 --- Material X 50 Material Y • Material Z 0.000 0.005 0.010 0.015 0.020 0.025 Strain (ɛ)…

A: SOlution: Given that d = 3 mmL =1.25 ftstrain ε = 0.045

Q: The graph below represents the stress versus strain for a particular material. What is the Young's…

A: The expression for the Young’s modulus is,

Q: A structural steel rod has a radius of 10mm and length of 1.0m. A 100kN force stretches it along its…

A: Write the expression for stress.

Q: Evaluate Young’s modulus for the material whose stress– strain curve is as shown.

A: Solution: Young’s modulus for the material whose stress– strain curve is as shown has given by,

Q: It is the ratio of the ultimate stress to allowable stress. poisson's ratio. O shear modulus modulus…

A: Poisson's ratio is defined as the ratio of the lateral strain to longitudinal strain, within the…

Q: Stress (MPa) 800 Breaking point 600 Elastic limit 400 200 Eļastic behavior Strain 0.002 0.004 0.006…

A:

Q: Steel beams are used for load bearing supports in a building. Each beam is 4.0 m long with a…

A:

Q: A 19 -L volume of oil is subjected to pressure which produces a volume strain of 1.3 x L0-4. The…

A:

Q: The following observation were made during a tensile test on a mild steel specimen of 40 mm diameter…

A: The solution is given below

Q: A structural steel rod has a radius of 10 mm and a length of 1.0 m. A100 kN force stretches it along…

A: Calculating the stress in the rod:

Q: The "lead" in pencils is a graphite composition with a Young's modulus of approximately 1.0 x 10°…

A: Given data:  Young's modulus (Y) = 1.0×109 N/m2 Force (F) = 4.5 N Diameter (d) = 0.70 mm = 0.70×10-3…

Q: 57. The drawing shows a 160-kg crate hanging from the end of a steel bar. The length of the bar is…

A: Mass of the crate,   The length of the bar,   The cross-sectional area of the bar,   The shear…

Q: The following figures show a steel bars of thickness h = 5 mm. the bars are subjected to a force P.…

A: Given: Figures with thickness, h = 5 mm Shear stress, t = 140MPa

Q: The bulk modulus of a material is 7.24 x 1011 N/m². What fractional change in volume does a piece of…

A:

Q: After a fall, a 110 kg rock climber finds himself dangling from the end of a rope that had been 15 m…

A:

Q: A steel cable supports a lift that can carry a maximum load of 3000 Kg and it moves with an…

A: Given, cable can carry maximum load of 3000 kg     so mass=m=3000kg acceleation=6 m/sec2. Case 1:…

Q: 2. The area of the upper face of a rectangular block is 0.5m x 0.5 m and the lower face is fixed.…

A: Given: The area of the upper surface is A=0.5 m×0.5 m=0.25 m2 The height of the block is h=1…

Q: A horizontal aluminum rod 3.6 cm in diameter projects 5.6 cm from a wall. A 1000 kg object is…

A: Given:-  A horizontal aluminum rod of diameter d = 3.6 cm = 0.036 m  The distance from the wall is L…

Q: Evaluate Young's modulus for the material whose stress-strain curve is shown in the figure below.…

A: From the figure given stress strain curve, it is clear that the stress of the material corresponding…

Q: EXample 2: the ankle joint therefore pushes upward on the bottom of the tibia with the force of 2800…

A: Given : R1=1.3 cmR2=2.5 cm

Q: 1. Rank the following materials based on its rigidity, where 1 is the most rigid and 3 is the least…

A:

Q: A horizontal aluminum rod 5.0 cm in diameter projects 4.8 cm from a wall. A 1400 kg object is…

A: Given  D=5cm Projection on wall = 4.8cm M= 1400kg Shear modulus = 3×1010 N/m2

Q: Below are the stress-strain graphs of 3 different materials. Which of these materials has the…

A: Given, Graph between stress and strain as we know that from hooks law that young…

Q: A cable supports a lift that moves up with an upward acceleration of 2 m/s2. Given that the…

A: Given, Upward acceleration,a=2 m/s2 Proportional limit stress,σ=10.1×109N/m2 Area of…

Q: If the human bone fractured with stress 120 N/mm 2 then the maximum tension on the bone with an area…

A:

Q: 1 m wire has a cross sectional area 10-4 m2. The wire is stretched by a load of 50 kg causing it to…

A:

Q: If the deformation produced in 20 mm length rod is 0.085 mm, the strain is equal to: Select one: a.…

A: (d) 0.00425

Q: A horizontal aluminum rod 3.2 cm in diameter projects 7.6 cm from a wall. A 1100 kg object is…

A:

Q: Humans can bite with a force of approximately 792 N. If a human tooth has the Young's modulus of…

A: Force exerted (F) = 792 N Cross sectional area (A) = 1.3 cm2= 0.00013 m2Length of bone (L) = 1.7cm =…

Q: 3. The femur is a bone in the leg whose minimum cross sectional area is about 4.81 x 104 m?. A…

A:

Q: A horizontal aluminum rod 3.9 cm in diameter projects 5.5 cm from a wall. A 1200 kg object is…

A:

Q: it is a dimensionless value, classified into three types O Inertia O compressive stress, Bulk or…

A: Required :  Dimensionless value

Q: A horizontal aluminum rod 3.9 cm in diameter projects 5.5 cm from a wall. A 1200 kg object is…

A:

Q: Problem Solving... A torsion test shows that the shear modulus of an aluminum specimen is 4.60 x…

A:

Q: Steel beams are used for load bearing supports in a building. Each beam is 4.0 m long with a…

A: Y=F/A∆L/L∆L=FLAY=4.9×104 N4.0 m9.1×10-3 m2210×109 N/m2=0.10×10-3 m1 mm10-3 m=0.10 mm

Q: 2- Determine the total deformation between points A and D of a stepped steel bar subjected to the…

A:

Q: A horizontal aluminum rod 3.3 cm in diameter projects 7.2 cm from a wall. A 1000 kg object is…

A:

Q: A horizontal aluminum rod 3.9 cm in diameter projects 5.5 cm from a wall. A 1200 kg object is…

A:

Q: Sketch the stress-strain curve of the following tension test??? In the tension test of a metal…

A: Given, During tensile test metal fracture at maximum load Condition at initial is= Ao=150mm^2…

Q: A horizontal aluminum rod 4.2 cm in diameter projects 6.7 cm from a wall. A 1100 kg object is…

A:

Q: 5. A sculpture weighing 10,000 N rests on a horizontal surface at the top of a 6.0 m tall vertical…

A:

Q: The breaking stress of aluminium is 7.5 x 107 Nm-2. Find the greatest length of aluminium wire that…

A: Given that:-   Breaking stress of aluminium wire=7.5×10^7 N/m^2

Q: The graph below represents the stress versus strain for a particular material. Stress (MPa) 800…

A: Young's modulus is defined for linear elastic behaviour only as below.

Q: Assume Young's modulus for bone is 1.50 x 100 N/m². The bone breaks if stress greater than d= 40607…

A: Young modulus, Y=1.50× 1010 N/m2 Maximum stress, σ=40607 N/m2 Radius, r = 0.01 m

Q: 1) A 0.4M pipe under compressional stress changes length by 0.05 m .What is the strain in the pipe ?…

A: Given : Original length of pipe = 0.4 m             Change in length of pipe = 0.05 m

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).