vol fractions and weight %
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Catégorie :Category: nCreator TI-Nspire
Auteur Author: oONOLTZOo
Type : Classeur 3.0.1
Page(s) : 1
Taille Size: 1.67 Ko KB
Mis en ligne Uploaded: 10/10/2024 - 11:03:07
Uploadeur Uploader: oONOLTZOo (Profil)
Téléchargements Downloads: 1
Visibilité Visibility: Archive publique
Shortlink : http://ti-pla.net/a4245326
Type : Classeur 3.0.1
Page(s) : 1
Taille Size: 1.67 Ko KB
Mis en ligne Uploaded: 10/10/2024 - 11:03:07
Uploadeur Uploader: oONOLTZOo (Profil)
Téléchargements Downloads: 1
Visibilité Visibility: Archive publique
Shortlink : http://ti-pla.net/a4245326
Description
Fichier Nspire généré sur TI-Planet.org.
Compatible OS 3.0 et ultérieurs.
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A unidirectional Kevlar 49 fibreepoxy composite contains 60% by volume of Kevlar 49 fibres and 40% epoxy resin. The density of the Kevlar 49 fibres is 1.48 Mg/m3 and that of the epoxy resin is 1.20 Mg/m3. What are the weight percentages of Kevlar 49 and epoxy resin in the composite material? What is the average density of the composite? Step 1: Calculate the volume fractions Given: Volume fraction of Kevlar 49 fibers, Vf=0.60 (60%) Volume fraction of epoxy resin, Vr = 0.4 = (40%) Step 2: Calculate the weight percentages Densities " Density of Kevlar 49 fibers, Pf = 1.48 Mg/m^3 " Density of epoxy resin, Pr = 1.20 Mg / m^3 Mass of each component 1. Mass of Kevlar 49 fibers: = Fraction * Density = 0.60 * 1.48 = 0.888Mg Resin = 0.40 * 1.20 = 0.480 Step 3: Calculate the total mass of the composite =0.888 + 0.480 = 1.368Mg Step 4: Calculate the weight percentages Kevlar mass / total mass = 0.888 / 1.368 * 100 = 64.9/ Repeat for resin. Average density = mtotal / Vtotal = 1.368Mg / 1.0m^3 = 1.368Mg/m^3 Summary of Results " Weight Percentage of Kevlar 49 Fibers: 64.9% " Weight Percentage of Epoxy Resin: 35.1% " Average Density of the Composite: 1.368 Mg/m³ Made with nCreator - tiplanet.org
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Compatible OS 3.0 et ultérieurs.
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A unidirectional Kevlar 49 fibreepoxy composite contains 60% by volume of Kevlar 49 fibres and 40% epoxy resin. The density of the Kevlar 49 fibres is 1.48 Mg/m3 and that of the epoxy resin is 1.20 Mg/m3. What are the weight percentages of Kevlar 49 and epoxy resin in the composite material? What is the average density of the composite? Step 1: Calculate the volume fractions Given: Volume fraction of Kevlar 49 fibers, Vf=0.60 (60%) Volume fraction of epoxy resin, Vr = 0.4 = (40%) Step 2: Calculate the weight percentages Densities " Density of Kevlar 49 fibers, Pf = 1.48 Mg/m^3 " Density of epoxy resin, Pr = 1.20 Mg / m^3 Mass of each component 1. Mass of Kevlar 49 fibers: = Fraction * Density = 0.60 * 1.48 = 0.888Mg Resin = 0.40 * 1.20 = 0.480 Step 3: Calculate the total mass of the composite =0.888 + 0.480 = 1.368Mg Step 4: Calculate the weight percentages Kevlar mass / total mass = 0.888 / 1.368 * 100 = 64.9/ Repeat for resin. Average density = mtotal / Vtotal = 1.368Mg / 1.0m^3 = 1.368Mg/m^3 Summary of Results " Weight Percentage of Kevlar 49 Fibers: 64.9% " Weight Percentage of Epoxy Resin: 35.1% " Average Density of the Composite: 1.368 Mg/m³ Made with nCreator - tiplanet.org
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