What are the equations that describe the ductile creep of rocks at low, moderately low (<200 MPa) and high stresses? Define the parameters and what are the typical “n” values.

Q: Q5: At a point in a strained material the stresses acting on planes at right angles to each other…

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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: What are the equations that describe the ductile creep of rocks at low, moderately low (<200 MPa)…

A: Creep is the term for a material's long-term strain response.

Q: Question- In a two-dimensional stress system, the two principal stresses are 180 N/mm² (tensile) and…

A: given principal stress σ1= 180 N/mm2Let other principal stress=σ2yield stress=240 N/mm2Poisson's…

Q: At a point in a stressed material, the major principal stress is 50 kPa compression and the minor…

A: It is required to determine the maximum shear stress.

Q: In a strained material stresses are given below sigma_x=100Mpa, sogma_y=-50Mpa, txy=30Mpa.calculate…

A: Solution:-

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: In a material the principal stresses are 60 MN/m², 48 MN/m² and -36 MN/m². When the 1 find the total…

A: Given- Principal stress- σ1=60 MN/m2,σ2=48 MN/m2,σ3=-36 MN/m2,μ=0.3,

Q: Briefly describe the physico-chemical parameters that control the ductile and brittle behavior of…

A: The physico-chemical parameters that control the ductile and brittle behavior of rocks under stress…

Q: At 20°C, a rigid slab having a mass of 55-Mg is placed upon two bronze rod and one steel rod as…

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

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Q: Which of the following types of deformation results in rock folds?   a. Ductile Deformation b.…

A: Ductility- It may be defined as the property of materials that plastically deformed without the…

Q: ) For the given stress condition find: 1. Principal stresses and their orientation. 2. The stresses…

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Q: The extruded plastic shape has dimensions of D = 32 mm, d = 30 mm, a = 89 mm, and t = 7 mm. (a)…

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Q: The principal stresses in the wall of a container are 40 MN/mm² and 80 MN/mm². The normal makes an…

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Q: Draw a typical creep curve for constant load, and explain the variation of the curve you drew.

A: Creep- Creep can be defined as a type of metal deformation that occurs below the yield point on the…

Q: At a point in a stressed material, the major principal stress is 7.2 ksi compression and the minor…

A: It is required to determine the maximum shear stress. We know that, the maximum shear stress acts at…

Q: A hollow aluminum rod has a max shear stress of 0.075 GPa. What is the maximum torque that can be…

A: Given a hollow aluminum rod subjected to maximum shear stress of 0.075GPa. It is required to find…

Q: Problem 2. The principal stresses in the wall of a container are 40 MN/mm² and 80 MN/mm². The normal…

A: Determine the resultant stress?

Q: The state of plane stress in a plate of 100 mm thickness is given as 0xx = 100 N/mm2, Oyy = 200…

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Q: A shaft is subjected to maximum compressive stress of 20 N/mm² and maximum shear stress of 80 N/mm²…

A: A propeller shaft is subjected to maximum compressive direct stress of 20 N/mm2and maximum shear…

Q: During the tension test, the wooden specimen is subjected to an average normal stress of 12.5 MPa.…

A: Determine the average shear stress and bearing stress developed on the specimen.

Q: The followings statement is associated to the possible increase in tota stress at certain depth…

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Q: 9. (a) Sketch the Mode I, Mode II, and Mode III crack opening geometries, and clearly state which is…

A: Note : As per guidelines, we will only discuss the first one as it is not particularly mentioned…

Q: 4 in. 4 in. 2 in. 1 in. P 1.8 During the tension test, the wooden specimen on the left is subjected…

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Q: The following statement is true or false? Transverse shear stress always has its associated…

A: Transverse shear stress always has a complimentary component in terms of longitudinal stress.

Q: a) At a point on the free surface of a stressed body, the normal tensile stress of 20 MPa is acting…

A: When stresses act on a body, then for understanding stress a small block is assumed to be having all…

Q: Given data: Maximum principal stress-38 MPa Minimum principal stress-32.5 Mpa Find maximum shear…

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Q: The distance from the intersection point between the Mohr-Coulomb failure line and he normal stress…

A: 4} the two type of stresses are static and dynamic stresses 5} radius of mohr circle or shear stress…

Q: A propeller shaft is subjected to maximum compressive direct stress of 20 N/mm² and maximum shear…

A: Given that :- A propeller shaft is subjected to maximum compressive direct stress of 20 N/mm2 and…

Q: In which of the following statement is incorrect? O Internal friction angle is higher in clay than…

A: State 2 and 3 are correct as (i) Pure sand has close to zero cohesion as sandy soil is having more…

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.