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COMPOSITE MATERIALS HOMEWORK, Exercises of Engineering

Marmara University Engineering

COMPOSITE HOMEWORK FOR MECHANICAL MATERIALS

What you will learn

What percentage of volume should the matrix and reinforcement phases occupy in a composite material?

Typology: Exercises

2020/2021

Uploaded on 06/23/2021

selim-burak-cantuerk 🇹🇷

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Composite

Materials

Prof. Dr. Arif Güllüoğlu

Homework

Set I

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Homework

Set I

Text book 1. Compare the mechanical properties of three main classes of structuralmaterials, namely ceramics, metals and polymers. Discuss how theproperties of these materials affected by incorporating a reinforcement. 2. State giving your reasoning, which composite materials you would selectfor the following applications:(a) a tie-rod carrying a tensile load for a room temperature transportapplication(b) a tool to cut wood at a high speed.(c) a component to operate within a vacuum furnace at 2100

oC, (d) a component of a diesel engine which is subject to wear.

CompositeMaterials Prof. Dr. Arif Güllüo ğ lu^4

Set I^ Review Questions 1.^ Your reading mentions that matrix and reinforcement phases are typically presentin volume fractions greater than a certain percentage.(a) What is that percentage?(b) Consider a bundle of continuous fibers arranged in a hexagonal close-packedform, and the material occupying the space between the fibers is a mixture of 60vol. percent epoxy and 40 vol. percent particulate reinforcement. Estimate thevolume fraction of each component and comment on whether it is at least 5%.

Set I^ Review Questions 2.^ Derive equation for the volume fraction of voids in a composite in terms of itsdensity measured experimentally and the density calculated from the weightfractions.

COMPOSITE MATERIALS HOMEWORK, Exercises of Engineering

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Partial preview of the text

Download COMPOSITE MATERIALS HOMEWORK and more Exercises Engineering in PDF only on Docsity!

Homework

Set I

Set I^ Review Questions 2.^ Derive equation for the volume fraction of voids in a composite in terms of itsdensity measured experimentally and the density calculated from the weightfractions.