What is the cause of the fracture of a brittle material?

Q: Define the meaning and significance of the ductile to brittle transition temperature (DBTT).…

A: DBTT: A temperature at which there is abrupt change in the ability of material to absorb force…

Q: Under what conditions may a ductile material undergo a brittle fracture?

A: In some cases ductile materials will fail in brittle the causes for this behavious includes 1)…

Q: What do you mean by fatigue failure of machine parts? Explain briefly. Give an example of a thing or…

A: Fatigue Failure

Q: Why should the theories of failure for brittle materials be used with caution?failure for brittle…

A: Theories of Failure: Theories of failure are those theories that predict the safe measurements of a…

Q: The Yield strength/Elastic limit read from a stress stain curve is... O The transition to brittle…

A: Given:Elastic limit: This is the point in the stress strain curve where materialchanges its…

Q: Describe the different methods for determining the allowable creep strengthfor a particular…

A: Creep is the tendency of the material to deform permanently under the influence of the persistent…

Q: Choose two options from those listed below. Compared to brittle materials, ductile materials are…

A: Option b and e are correct.

Q: Did the ductile materials (annealed and aluminium) react differently to the two different testing…

A: It is asked to write the behaviour of ductile and brittle materials under tension as well as…

Q: Discussion: • Dfleulties in testing brittle materials • Advantages of stress-strain diagram. •…

A: Plastic deformation is not substantial in brittle materials. They fail as a result of…

Q: Are fatigue striations always visible on a fatigue fracture surface? If not, under what conditions…

A: Answer Fatigue Striation : these are the marks induced on the surface of fracture and goes on…

Q: In a mechanical lab, a tensile test was performed on a rod of alloy having an original diameter 20…

A:

Q: Why the relative permeability curves are diagonal in naturally fractured reservoirs?

A: Ans: Due to high intrinsic fracture permeability.

Q: ) What is the relation between stress at the tension side and diameter of the fatigue test specimen?…

A: (a) Relation  between stress at the tension side and diameter of the fatigue test specimen (b) The…

Q: A mild steel tensile specimen of initial length 44 mm and initial diameter 6.4 mm is subjected to a…

A:

Q: - The ultimate tensile strength of metallic sample is equal to which of the following values? If…

A:

Q: How does the stress/strain graph of a brittle material compare to a ductile material?

A: When a material is given to an external load, initially it experiences elastic deformation the…

Q: Describe the appearance of a fatigue fracture?

A: When a specimen or a component is subjected to a repeated load or cycling load, it may fail below…

Q: A cup and cone shape of the fracture surface for a tension tested steel sample indicates this mode…

A:

Q: 11. List the conditions that can induce brittle failure even in a ductile material.

A: Conditions that can induce brittle failure even in a ductile material- 1. High Strength Material are…

Q: Will fracture occur for a material exposed to a tensile stress of 900 MPa if the material has a…

A:

Q: Distinguish between the Brittle material and the Ductile material?

A: Brittle Materials: These materials elongate on the application of load to the materials. They can…

Q: Interpret the following properties of brittle fracture and ductile fracture in terms of: Crack…

A: Solution: To Find: (a) Crack propagation in brittle and ductile fracture. (b) Preferred mode of…

Q: 9) An aircraft component is made of an aluminum alloy that has a fracture toughness of 60MPavm. When…

A:

Q: Calculate the theoretical fracture strength of a brittle material wherein fracture occurs by…

A: As per given question  Strss=1200mpa Crack=0.25mm Radius of curvature =1.25×10^3 mm We have find…

Q: As a fatigue crack grows from its initial length to its final length, does it spend most of its life…

A: Fatigue failure: Fatigue failure is defined as the formation and the propagation of the crack in a…

Q: The mean fracture strength of a batch of alumina components is measured to be 400 MPa. What size of…

A:

Q: Why are cracks & notches prone to fracture propagation?

A: For any kind of crack or rapture in an object, there multiple factors that bring about failure.…

Q: In a mechanical lab, a tensile test was performed on a rod of alloy having an original diameter 22…

A:

Q: Heat treatment processes are conducted in steel specimens. As a result, these specimens may become…

A: In this question the idea of material science and heat treatment is used.

Q: Failure of Materials Due to Creep and Fatigue.

A: Environmental conditions, such as corrosion, have an impact on fatigue strength. The fatigue…

Q: Types of fracture in metals and S-N curve

A: Fracture : Fracture is a failure of material under action of forces so that there will be separation…

Q: How is Equation used to determine the shear modulus of elasticity of a material?

A: It can be used to explain how a material resists transverse deformations but this is practical for…

Q: What type of fracture has occurred for the specimen

A: Two types of fracture generally occurs in specimen. Ductile fracture Brittle fracture        Many…

Q: 1) How do you understand whether a metal or metal alloy is ductile or brittle after the fracture?…

A:

Q: On what does a tensile fracture generally depend?

A:

Q: (b) (i) Describe the stages of cracking in brittle materials with reference to applied stress.

A: Brittle material: The material which fail suddenly without any plastic deformation when stress is…

Q: Why does the tensile fracture occur suddenly?

A: Fracture is defined as separation of an object into two more pieces under the application of load.…

Q: Figure 2 shows the stress versus strain curve of four engineering materials. Compare the ability of…

A: Given : To find : Compare between materials A and B

Q: (b) A 12.8 mm diameter rod and gauge length of 40 mm of aluminum alloy is pulled to failure in a…

A: For solution refer below images.

Q: Parameter(s) that determined by a single Charpy impact test is O ductile-to-brittle transition point…

A: given; parameter that determine by single Charpy impact test is

Q: Draw the stress strain diagram for a ductile and brittle material and what is the difference in it?

A: We can answer first question for you since the exact one is not specified. Please resubmit the…

Q: 9-Brittle failure of polycrystalline material is always associated with the intergranular crack…

A: Brittle failure occurs when materials fails when material shows negligible elongation or plastic…

Q: Ability of material to undergo permanent deformation without fracture is called

A: Option (A) Plastic deformation. is correct option

Q: following materials shows a dramatic change in fracture behavior with increasing temperature? Select…

A: Ans: D) Stainless steel

Q: Qu2. (A) What is fatigue? Mention the sequence of steps involved in fatigue of a smooth specimen.…

A: When material is subjected to repeated stress, it fails at stress below the yield point stress. This…

Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.