9. (a) Sketch the Mode I, Mode II, and Mode III crack opening geometries, and clearly state which is the most commonly found in engineering structures. (b) Define plane stress and plane strain, making clear which, if any, of the stresses are zero in each case. (c) What is plane strain fracture toughness? are zero in each case. (0) what is 10. (a) Write Griffith's expression for the fracture stress of a material under plane stress conditions. Identify which parameters are applied and which are material constants. (b) What is the leak-before-break condition? Please explain.

Q: a) plot how the critical stress intensity kc depends on the thickness and explain this?

A: Critical stress intensity:- The factor of critical stress intensity is used for finding the fracture…

Q: A punch of 20 mm diameter is used to punch a hole in 8 mm thick plate. If the force required to…

A: Given data- Diameter of the punch = 20 mm, thickness = 8 mm, force = 110 kN, To Find- The value of…

Q: A kinked edge crack has been detected in a large plate which is to be loaded by a remote tensile…

A: I have solved your problem

Q: itude of maximum shear stress in the

A: This question has been taken from Solid mechanics

Q: Can you please answer the following question in the picture and show all of your work in, please.

A: Detailed step by step solution is given below, still if you have any query please feel free to…

Q: Question A structural element is subjected to a two dimensional stress system, wherein ₁ = 225 N/mm²…

A: Given- Stresses- σ1=225 N/mm2,σ2=compressive,Possion's ratio μ=0.25, It is needed to find the value…

Q: mple has perfect quality (no flaws). lculate the tensile stress required to fail a tensile coupon…

A:

Q: Q3\ Fill in the blanks with appropriate words. 1. The fracture planes oriented more or less 2. Mohr…

A: 1. The fracture planes are oriented more or less perpendicular to the direction of the tensile…

Q: a) As an engineer, choose a desired fracture mode in metals with one (1) reason. b) Sketch the…

A: "Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: At a point in a machine component that is subjected to plane stress, the normal and shear stresses…

A: Determine the strain components of machine?

Q: difference between the stress distribution of these two- equations ab a distance r= 0.02 a ahead of…

A:

Q: For the element below, determine, a) Principal stresses b) Orientation of Principal stress planes c)…

A:

Q: How can we obtain the strain energy caused by the normal stress?

A: Whenever an elastic body is subjected to loading, energy is absorbed in the body, The energy due to…

Q: The stresses on two perpendicular planes through a point in a body are 160 MPa and 100 MPa, both…

A:

Q: At a point in a machine component that is subjected to plane stress, the normal and shear stresses…

A:

Q: A homogenous isotropic material of size 20 cm x 20 cm x 20 cm is placed inside a rigid box of…

A: Consider the free body diagram;Given;Young modulus, E=Poisson ratio, v=0.3

Q: At a point in a machine component that is subjected to plane stress, the normal and shear stresses…

A:

Q: The stresses on two perpendicular planes through a point in a body are 160 MPa and 100 MPa, both…

A:

Q: At a point in a machine component that is subjected to plane stress, the normal and shear stresses…

A:

Q: For a square cross-section bar affected by torsional moment at both ends, the streps components are…

A: σx=150σy=100zxy=-60σmaj/min=σx+σy2±σx-σy22+zxy2               =150+1002±150-10022+602…

Q: =\ Fill in the blanks with appropriate words. 1. The fracture planes oriented more or less ---- 2.…

A:

Q: In terms of oxx , O yy and the material properties having a plane strain state; write the expression…

A:

Q: A tensile bar has an initial 2.000-in. gauge length and a circular cross-sectional area of 0.2 in.?.…

A: Initial length, li= 2.0 in Initial area, ai= 0.2 in2

Q: Which of the following statements regarding brittle failure and crack propagation is CORRECT?…

A:

Q: 0.2 In a material there is a horizontal tensile stress of 200 MPa, a vertical tensile stress of 50…

A:

Q: What is the type of cup and cone fracture? a. Fatigue fracture b. Brittle fracture c. Ductile…

A: cup and cone fracture:

Q: (a) the modulus of elasticity. (b) Poisson's ratio. (c) the change in the bar width b.

A:

Q: The state of stress at a point is given by: o= 80 MPa, oy=100 MPa and tauxv =60 MPa. If the yield…

A: State of stresses-σx=80 MPaσy=100 MPaτxy=60 MPayield strength-fy=150 MPa

Q: Q.1 At a point in a material there is a horizontal tensile stress of 150 MPa, a vertical compresaive…

A:

Q: The stresses on two perpendicular planes through a point in a body are 160 MPa and 100 MPa, both…

A:

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

A: this test in conducted in uniform tension machine. standardization of this test is follow by…

Q: For the state of plane stress shown, determine (a) the largest value of o, for which the maximum…

A:

Q: 2. Which of the below stresses are normal stresses? a) Tensile and compressive stresses b) Tensile…

A: Which of the below stresses are normal stresses? a) Tensile and compressive stresses

Q: A 13 mm diameter tensile specimen has 50 mm gauge length. If the load corresponding to the 0.2%…

A:

Q: If the principal stresses in a plane stre.ss problem, are 0, = 100 MPa, 0z = 40 MPa, the magnitude…

A:

Q: 120 kPa and O lent state of stres t that represents ss at the point.

A:

Q: Question: Principal stresses at a point are 80 N/mm² and 40 N/mm2 both tensile. The yield stress in…

A: Given- Principal stresses- σ1=80 N/mm2,σ2=40 N/mm2, Yield stress- σy=200 N/mm2, It is needed to find…

Q: In the marine crane link CD is has a uniform cross section of 50 x150 mm and a modulus of 200 GPa.…

A:

Q: The polymer bar shown in the figure below has a width of b = 42 mm, a depth of d = 97 mm, and a…

A:

Crack Detection

Concrete materials are meant for supporting structures, building foundations and they act as several load-bearing structures. Over time, due to environmental conditions, and based on the constituent materials used, concrete materials are subjected to a great degree of distress. Corrosion of the reinforcement bars due to chemical influences, uneven base, earthquake, drying shrinkages, and alkali-aggregate reactions are some of the reasons for concrete distress.