2. List any four reasons why factor of safety is necessary while choosing the material.
Q: Which of the following material has minimum Indentation diameter? Select one: Mildsteel Aluminium…
A: As we know that, Brinell hardness no. (BHN)∝ 1Indentation area (or Indentation dia.)
Q: Which material/metal is the stiffest based on the following data provided and why?
A: Concept: 1) Stiffness is ability of material to resist deformation against applied load. 2) For the…
Q: Name five elements that should generally be removed from steel to improve toughness.
A: In steel there are various types of the alloying element which can improve and reduce some specific…
Q: Describe what happens if a tensile specimen is loaded just to the elastic limit and then unloaded.
A: A tensile specimens is sometimes a standardized sample cross-section. it's 2 shoulders and a gage…
Q: How does temperature effect a materials ability to resist a load?
A: Considering the variation of temperature while designing of any element is an important aspect.…
Q: List TEN (10) mechanical properties that a mechanical engineer should consider when selecting the…
A: The physical properties that material shows when the forces is applied on it is called mechanical…
Q: Q1. Which one statement most accurately describes the relative strength and toughness for materials…
A:
Q: Give a formula that can be used to determine a been allowance for a soft material
A: There is some typing mistake. It must be "bend allowance", not "been allowance".
Q: What is meaning of elasticity?
A: Elasticity - it is the tendency of an object or material.this can be measured by applying load on…
Q: Describe the strain and energy?
A: When a body is subjected to any tensile or compressive forces then the body undergoes deformation…
Q: What happens if the principal stresses at a critical point in the material?
A: First, define the critical point. Critical points are those points in the given plane where the…
Q: Define the term Stress Concentrations?
A: Stress concentration is a location in a member under load where the magnitude of stress is…
Q: How can the ductility of material be specified?
A: Ductility is the material’s property to undergo large plastic deformation (permanent type) after the…
Q: sticity?
A: given: What is modulus of elasticity?
Q: Give some examples of Ductile materials?
A: Ductile material, Ductile material is one which has considerable plastic (permanent deformation)…
Q: Which material should be chosen when high strength is required
A: Given: To define: Which material should be chosen when high strength is required
Q: 2. Name the three basic categories of materials. Give 1 example of each category.
A:
Q: How does point defect affects the property of a material?
A: To find : How does point defect affects the property of a material
Q: What does the modulus of the toughness of material represent?
A: The modulus of toughness is the measure of how much strain energy can a material absorb before the…
Q: Q\ What is the best material that has a very good Young modulus and low density?
A: The process of designing any physical thing includes the choice of materials. The major objective…
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: Describe the theory of elasticity?
A: Theory of Elasticity When an external force is applied to the body, it starts to elongate, and as…
Q: Which of the four major material groups has the lowest thermal conductivity?
A: The four major material groups are :Metals, Non metallic organics, organics and polymers. Among…
Q: a. which one has a better stiffness? gold or tungsten? b. which one is more ductile? low carbon…
A:
Q: cent elongation of SAE 1040 ductile or a brittle material?
A: Given material-SAE 1040 hot rolled steel. To be find- Ultimate strength,yield strength and…
Q: Why do the Brittle materials fail in tension?
A: Brittle materials do not undergo significant plastic deformation. They thus fail by breaking of the…
Q: On what does the strength of a material depend?
A: The strength of the material depends on many factors like the nature of the material used, its…
Q: What happens if the material is isotropic?
A: Materials have certain properties like homogeneity, showing isotropic behavior, etc. Isotropy is…
Q: How does the resilience of this material compare to its toughness?
A:
Q: Q12. How would a creep profile on a brittle material looks like?
A: How would be creep profile on a brittle material.
Q: What is the equivalent stiffness?
A:
Q: List the top hardest materials and describe their hardness property and applications
A: Given Material To find Hardest material list Hardness and application of the materials
Q: With what is Stress associated and how?
A: Please Specify the question in more detail, sir. But in general, it can…
Q: Fatigue life of a material is higher if it has,
A: The fatigue life of a material can be defined as the number of cycles that can be sustained by a…
Q: What is the Endurance or Fatigue limit?
A: Given Endurance limit To find Definition
Q: Which curve shown below (A or B) is for a BCC metal and why? A Brittle →More Ductile Temperabure…
A:
Q: Why is it important to make standards for the different building/engineering materials? (Tensile…
A: All things considered, we've been building two-stories wooden homes for millenia, so what's the…
Q: What is meant by the terms “Endurance Limit” and “Fatigue Limit”?
A: Endurance Limit: It is defined as the maximum value of completely reversed bending stress that a…
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: Stress and strain: What are they and why are they used instead of load and deformation?
A:
Q: How are the materials classified as ductile or brittle?
A: Ductile material When the material undergoes plastic deformation before the failure of the material…
Q: What happens to the surfaces of a material when it is bent?
A: Consider the diagram shown below for the bending of the sheet metal.
Q: Define Tensile strength.
A: Given Data⇒ Tensile strength Problem statement⇒ Problem says Define Tensile strength.
Q: What happens when the material is stressed beyond the yield point?
A: Any material is subjected to various processes and follows a stress-strain curve. In this curve,…
Q: What are the tensile forces?
A: Tensile force is the force applied on a material which stretches the material. The tensile force…
Q: Differ between Constant Load and Cross-Sectional Area?
A: Constant load otherwise called Point load (P) is a force applied at a single infinitesimal point at…
Q: why specific rigidity is needed?
A: Specific rigidity is defined by the ratio of young's modulas to the density. The more accurate term…
Q: What is the neutral plane of a material that is being bent?
A: When the force applied on the beam perpendicular to the centroidal axis results bending in the beam.…
Q: A material is required as blade of a knife for making fish fillets. List what you would judge to be…
A: The design limiting property are:- Strength Deflection Metallurgical limit
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- Which material has the greatest UTS?Using the figure from Question 2, imagine the lamp gets heavier and heavier until one of the cables breaks. If all of the cables have the same tensile strength, a) which one will break first, and b) why will that one specifically break first? You do not need to provide Given, Assume, and Problem Type/Features for this question. You just need to provide Find, Analyses and a Conclusion. Provide an explanation for b) that isclear, concise, correct and well organized. Use at least one diagram (2D or 3D) to make your case as to why one of them will break before the others. You can use equations/math to support your explanation as well, if you want, but expressing your answer in words and using logic will be all that is necessary. Youranswer to a) i.e. which one will break first, can be your “Conclusion” to Question 3The possibility to make the required shape from the material is considered during the criteria for selection. Select one: True False
- Which choice below best describes the mechanical property of materials called toughness? a. Ability to compress without permanent deformation b. Ability to bend in the elastic range c. How much energy a material can absorb without breaking d. Indentation resistanceWhat kind of material is used for a diving board?In gas welding process, rubber is used as preferred material for hoses. Select one: True False