For an application of high strength components including gears cams and rollers the desired properties in a plastic would be high tensile and impact strength, stability at high temperature, and machine ability. Potential materials which are suitable for these applications are nylon phenolics, TFE filled acetals, PET, and poly carbonate. True or false.

Q: Define the term Elastoplastic?

A: Elastoplastic stress is defined as the stress between the elastic stress and its breaking stress of…

Q: The rule of mixture (ROM) for composites may be used to calculate some of the physical properties of…

A: The Rule of Mixtures (ROM) is a concept that is used in the field of composite materials. This…

Q: Which of the following is rubber structure? What is the other material? Why does rubber have a large…

A: The crystal structure of two materials given in the question, and we know that a crystal structure…

Q: Which statement is correct regarding the structure of polymers? Oa. Degree of crystallinity and…

A: It is asked to provide correct state ment from the options

Q: gf What is the tenacity in of den that ruptures under a load of S Provide your answer with tv

A: Given Data : Linear density of fiberρ=3.2 tex Load(F)=94.8 gf

Q: An unknown polymer sample was found to have the following molecular weight distribution:

A: Given:Molecular weight distribution tableDP = 763

Q: [Materials Engineering] In a severe fracture, bone plates with screws are surgically implanted to…

A: given; In a severe fracture, bone plates with screws are surgically implanted to hold the bone in…

Q: Connecting rod (as shown below) is a car part that connects engine piston to crankshaft and converts…

A: Solution: Given Data: Tmax=150oC

Q: Why are composites used in engineering?

A: introduction; composite are made by mixing of two or more different material. these material have…

Q: Suppose you're selecting materials for a frictional braking system which will be used to bring a…

A:

Q: Question 1 Grade 304 stainless steel is used to manufacture a component for an  industrial…

A: Composition is the mixture of two ingredients or elements. For different cast irons mostly silicon…

Q: Polyurethane are classified as Elastomer materials Select one: .True .False

A: elastomer is polymer which possess both properties viscosity and elasticity. its also called as…

Q: A classification of plastic where the material can be liquified and allowed to harden over and over…

A: Thermoplastic: The thermoplastics have secondary bonds between their molecular chains. These…

Q: The thermal expansion properties of polymers are generally ____________________ as those of metals?…

A: Given Statement:-  The thermal expansion properties of polymers are generally ____________________…

Q: tive glass transition temperature and melting temperature. Group of answer choices

A:

Q: Suggest two types of polymerizations for most plastics. Explain both types

A: To find : a) Name the two types of polymerizations for most plastics. b) Explain these two types

Q: As crystallinity of polymers increases density decreases true or false

A: False.  Because crystallinity defined as the degree of arrangement or long range order of atom in a…

Q: Which one of the followings not a reason to use an additive in plastics] ? a. Bacterial degradation…

A: Additives in plastic :

Q: Draw stress-strain graphs for two polymers: one is stiffer than the other and exhibits a yield point…

A:

Q: An old composite product of a company is comprised of 40 vol% fibre with the Young's modulus (E =…

A: Objective:Identify which of the following statement is false regarding the replacement if Young's…

Q: A new composite material is to be manufactured from carbon fibre and resin component materials. The…

A: Given data: EC=8.25 GPaEf=142 GPaER=5.42 GPa Need to determine the relative volume fraction of…

Q: In comparison with a brittle polymer, a ductile polymer yields and then breaks at a higher stress…

A: The graphed stress and strain of a material or metal is represented by a stress-strain curve. In…

Q: Relate the changes of mechanical properties of polymer if the temperature increase. I. Decrease…

A: Concept: 1) Here they asked about mechanical properties, so youngs modulus and tensile strength will…

Q: which test(izod or charpy or fracture toughness) is better for doing impact test on thermset…

A: Impact tests are used to check the strength and the durability of the material under stress…

Q: Determine whether the first part of statement will INCREASE, DECREASE or have NO EFFECT in the…

A: 1. If there is an increase in karat of gold, the strength will DECREASE. 2. If there is an increase…

Q: The data below is from a fibre reinforced plastic. Would this composite be suitable for use at…

A: As per Bartleby answering guidelines we are supposed to give only first question as there are no sub…

Q: Find the differences between thermoplastic and thermoset in terms of i. Recycle ability ii. Hardness…

A: Given :  The differences between thermoplastic and thermoset in terms of i. Recycle abilit ii.…

Q: A polymer has creep behaviour that can be represented as a power law equation: E = 0 (Jo + Jit")…

A: Stress is characterized as power per unit region inside materials that emerge from remotely applied…

Q: s the effect of temperature and strain rate on the mechanical properties of polymers.

A: Discuss the effect of temperature and strain rate on the mechanical properties of polymers.

Q: What is the elastic perfectly plastic material?

A: Elastic perfectly plastic material is the material whose yield stress remains unchanged even…

Q: Which of the following are incorrect regarding the crystallinity and mechanical behavior of…

A: Molecules of the polymer are in a frozen state at low temperatures where these molecules can vibrate…

Q: Which statements are correct regarding the mechanical properties of polymers?

A: Polymer: Polymers are created by the process of polymerization process by adding constituent…

Q: Answer the following questions. i) Define the term composites. ( ii) Explain the fibre reinforced…

A: (i) The composites are the material composed from two or more different materials that, when…

Q: With ceramic-matrix composites, the design goal is to increase stiffness toughness ductility…

A:

Q: For a glass/epoxy lamina with a 70% fiber volume fraction using the properties in the tables…

A: Solution: Given Data:

Q: State the critical difference in the processing behavior of thermoplastics vs. thermosets.

A: The primary physical difference is that thermoplastics can be remelted back into a liquid,…

Q: Stress (0) STRESS-STRAIN BEHAVIOR OF POLYMERS Brittle Plastic Tough & Strong Plastic Hard & Tough…

A: Brittle plastic: As the name suggested it will be brittle in nature with negligible plastic…

Q: Composite materials represent important part of engineering materials and their use is on the rise…

A: The objective is to critically analyze the production method of a selected engineering composite…

Q: Strain hardening... Select one: O a. increases the yield stress O b. has no influence on the plastic…

A: Strain hardening increase the yeild stress. Due to strain hardening process the elastic limit is…

Q: When answering  the following questions , ensure that you explain in terms of both the microscopic…

A: This question is based on the concept of polymer and composites.

Q: (c) Explain three properties and uses of wood as a construction material. Why is wood preferred to…

A: c) Wood is one of the Natural materials on the earth which has versatile use due to it's different…

Q: Choose a beverage other than water, identify and name three material properties that are needed for…

A:

Q: Thermosetting polymers have one of the following Select one: O a. No plastic deformation O b. very…

A: