Why do the Brittle materials fail in tension?

Q: Why do some Brittle materials, fracture suddenly? Give one example?

A: Brittle materials break without any deformation. They exhibit sudden failure or crack or fracture…

Q: Why does the brittle material fails in helicoidal shape and ductile material shears on right section…

A: introduction; brittle material fail in tension. and ductile material fail in shear because ductile…

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: Describe how a brittle fracture occurs?

A: Brittle materials are those materials when subjected to stress fails without any sign of failure.…

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: 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: Explain crack initation and propagation during metal fatigue? Explain factors that affect fatigue…

A: CRACK INITIATION Fatigue is a cascade of crack forming and production processes, which relies on…

Q: Discuss the factors influencing the ductile-to-brittle transition in materials?

A: The ductile-to-brittle transition is a phenomenon that involves a change in fracture behavior of…

Q: Which behavior is called yielding in the deformation of material?

A: In stress-strain, curve, is is the point at which the elastic limit completes and the plastic zone…

Q: Why do most materials exhibit fracture strengths much lower than their theoretical capacities to…

A: In theory, the calculations are done by assuming that the material is ideal i.e there is no defect…

Q: give an example  proving that most materials exhibit both ductile andbrittle behavior?

A: As the temperature of the material decreases the ductile material loses its ductility and brittles…

Q: Do the irregularities vary from specimen to specimen in tensile fracture?

A: The tensile strength of the same specimens can be identical, but the surface irregularities are not…

Q: 3. How can you understand if a fracture is brittle or ductile? Briefly explain which experimental…

A: If a specimen under tension test results in a noticeable value of strain before it fractures, then…

Q: WHAT DOES TENSILE TEST FRACTURE INDICATE AND CONFIRM .COMPARE DIFFERENCES IN STRESS STRAIN CURVE FOR…

A: The tensile testing is one of the types of mechanical testing which is used to determine the…

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) Draw two Engineering Stress - Engineering Strain graphs: one for a ductile metal and one for a…

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: When does the Fatigue occur in the material?

A: When a material is subjected to repeated or cyclic loading then the failure in the material is…

Q: How does the increase in strain rate affect the Youngs modulus, UTS and ductility of material? (At…

A: There is a great impact of strain rate, temperature, and other atmospheric conditions on the young…

Q: What would happen to the wire if it were stretched beyond its elastic limit? What would happen to…

A: Consider the diagram of stress vs strain for tension test for a typical tensile metal as shown…

Q: Why is the prediction of the tensile fracture of a brittle material is difficult to predict?

A: Brittle materials are those materials that break without any significant plastic deformation and…

Q: Is the fatigue responsible for the materials?

A: Fatigue: The failure of a material to the repeated cyclic loads applied on it is termed as Fatigue.…

Q: What is the difference in appearance between ductile & brittle fractures?

A: Fracture is a phenomenon in which body is separated into two or more pieces under the application of…

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: 3. Linear elastic fracture mechanics (LEFM) predicts there will be an infinite stress at the tip of…

A: In linear elastic fracture mechanics (LEFM), the prediction of an infinite stress at the tip of a…

Q: If a brittle material has a stress-strain diagram, Is it different in tension and compression?

A: Brittle materials such as glass, concrete do not have yield points and they do not strain to harden.…

Q: Describe how a ductile fracture comes about?

A: Answer : Ductile Material are those materials that go through substantial plastic deformation before…

Q: What is the effect of strain hardening on the material?

A: Strain hardening When a material is being plastically deformed, then the strength of the ductile…

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

A: Brittle fracture is one which takes place without any appreciable plastic deformation and by rapid…

Q: Why fracture strain for metals (Aluminum, Mild Steel) in pure share is higher than pure tension?

A: fracture strain for metals (Aluminum, Mild Steel) in pure share is higher than pure tension because

Q: Q12. How would a creep profile on a brittle material looks like?

A: How would be creep profile on a brittle material.

Q: why use yield strength not tensile strength? You are drawing wire which you want the wire to…

A:

Q: How does fatigue crack growth rate vary with applied stress level?

A: The fatigue crack growth rate is dependent on the stress intensity factor. The stress intensity…

Q: When a load is applied to a member, the deformations cause strain energy to be stored in the…

A: Yes, True. When a load is applied to a member, the deformations cause strain energy to be stored in…

Q: brittle material usually exhibts substancial plastic deformation with high energy abosorbtion before…

A:

Q: B/ Draw the transition temperature from ductile to brittle behavior in terms of impact test?

A: Some metals that are ductile at normal temperature become brittle at low temperatures. The…

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.