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: 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: Define the below term ? Vertical Stress Due to a Concentrated Load

A: Boussinesq Theory for Vertical Stress due to Concentrated Load: Boussinesq gave a solution for…

Q: 4.17. Simple Tension and compression tests on a brittle material reveal that failure occurs by…

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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: plate was subjected to a tensile force P=100 KN as shown on the figure. If the allowable stress is…

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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: A rectangular bar having a cross-sectional area of 80 mm² has a tensile force of 20 kN applied to…

A: Tension force = 20 KNCross section area = 80 mm2Determine stress?

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

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Q: A tension specimen having a cross-sectional area A is subjected to an axial force P. What is the…

A: Answer: (a) P/A sin^2@

Q: The major and minor principal stresses acting at a point in a stressed material are 80 psi…

A: Major Principal stress, σ1=-80 psi (compression) Minor Principal stress, σ2=20 psi (Tension) (a)-…

Q: 1. and indicate the important features of the curve. Draw the typical creep curve of a metal a…

A: Introduction- Creep (also known as cold flow) in materials science is the propensity of a solid…

Q: the modulus of elasticity.

A: Modulus of elasticity: - It is defined as the normal stress of a material divided by longitudinal…

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: 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: Define the Stress Distribution Under Uniform Strip Load ?

A: Answer A strip loading is known as the load that is transmitted by the finite width and infinite…

Q: A brittle material has the properties Sut=30 kpsi and Suc=90 kpsi. Using the brittle Coulomb- Mohr…

A: Given: Sut=30 kpsiSuc=90 kpsiσx=215 kpsiσy=10 kpsiτxy=215 kpsi

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

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Q: The concrete tower of a water tank with a cross section in the form of a circular ring carries the…

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Q: A cylindrical pressure vessel is fabricated from steel plating that has a thickness of 42 mm. The…

A: problem 1Givendiameter of the pressure vessel d=450 mm=0.45 mthickness t=42 mm=0.042 m,longitudinal…

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: A steel rod is stretched between two rigid walls and carries a tensile load of 5000 N at 20°C. If…

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Q: a)Calculate the stress components acting on the inclined plane AB. b)Calculate prime stresses…

A: Given data: σx = -25 MPa  (Compressive) σy = 50 MPa   (Tensile) shear stress = -60 MPa  (Causing…

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: A soil element is shown in Figure 3. (use equations) 130 kN/m2 35KN/m? A 30° 60 kN/m2 B 35 kN/m2…

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

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Q: Describe about the cyclic stress ratio?

A: The liquefaction of soil is a phenomenon in which soil deformation takes place in undrained or…

Q: Refer to the figure 1. Which of the following most nearly gives the value of the major principal…

A: Given Normal stresses 200 and 120 kPaShear stress 40 kPaAngle= - 15°To find out Principle stress…

Q: A steel rod is stretched between two rigid walls and carries a tensile load of 5000N at 20oC . If…

A: It is requir d to find the minimum diameter of rod so that maximum stress does not exceed 130 MPa.

Q: Refer to the figure to answer the following questions: 150 kN/m2 45KN/m2 B 45KN/m? to 195 kN/m² 65°…

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Q: te the following: (a) Minimum required thickness of the plate. (Hint: HOLE vs FILLET)  (b) Maximum…

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Q: A tension force generates a greater stress than an equivalent compression force. (A) True B) False

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Q: a) Minimum required

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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.