A numerical study on the thermal expansion coefficients of fiber

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A NUMERICAL STUDY ON THE THERMAL EXPANSION COEFFICIENTS OF FIBER REINFORCED COMPOSITE MATERIALS A Thesis Submitted to the Graduate School of Natural and Applied Sciences of Dokuz Eylül University In Partial Fulfillment of the Requirements for the Degree of Master of Science in Mechanical Engineering, Energy Program by Ziya Haktan KARADENİZ July, 2005 İZMİR
M.Sc THESIS EXAMINATION RESULT FORM We have read the thesis entitled “A NUMERICAL STUDY ON THE THERMAL EXPANSION COEFFICIENTS OF FIBER REINFORCED COMPOSITE MATERIALS” completed by Ziya Haktan KARADENİZ under supervision of Assist. Prof. Dr. Dilek KUMLUTAŞ and we certify that in our opinion it is fully adequate, in scope and in quality, as a thesis for the degree of Master of Science. Assist. Prof. Dr. Dilek KUMLUTAŞ Supervisor (Jury Member) (Jury Member) Prof.Dr. Cahit HELVACI Director Graduate School of Natural and Applied Sciences ii
Page 1: DOKUZ EYLÜL UNIVERSITY GRADUATE SC
Page 5 and 6: A NUMERICAL STUDY ON THE THERMAL EX
Page 7 and 8: CONTENTS Page THESIS EXAMINATION RE
Page 9 and 10: 4.2.1 Geometry Creation............
Page 11 and 12: 2 coefficients of thermal expansion
Page 13 and 14: 4 coefficients coincide to give res
Page 15 and 16: 6 concentration from pure metal to
Page 17 and 18: 8 high strength-to-weight and stiff
Page 19 and 20: 10 polymers. Thermosetting polymers
Page 21 and 22: 12 Metals are strong and tough. The
Page 23 and 24: 14 Table 2.1 Properties of reinforc
Page 25 and 26: 16 2.2.2.2 Carbon Fibers Carbon is
Page 27 and 28: 18 use is in aircraft industry foll
Page 29 and 30: 20 strength and a reasonable Young
Page 31 and 32: 22 1. Processing the conventional f
Page 33 and 34: 24 (orthorhombic) of polyethylene h
Page 35 and 36: 26 Whiskers are monocrystalline sho
Page 37 and 38: 28 3.2 Factors Affecting the Coeffi
Page 39 and 40: 30 3.2.4 Thermal Cycling The primar
Page 41 and 42: 32 3.3.1 Mechanical Dilatometry Thi
Page 43 and 44: 34 absolute accuracy of about ± 0.
Page 45 and 46: 36 3.3.3 Strain Gauges This relativ
Page 47 and 48: 38 • The composite is macroscopic
Page 49 and 50: 40 3.4.1.3 Equation of Van Fo Fy In
Page 51 and 52: 42 and the thermal expansion coeffi
Page 53 and 54:
44 P P 11 33 2 A 22 − A = Det A A
Page 55 and 56:
46 • A perfect bonding exists at
Page 57 and 58:
CHAPTER FOUR FINITE ELEMENT METHOD
Page 59 and 60:
50 No matter how the geometry is cr
Page 61 and 62:
52 displacements and/or rotations a
Page 63 and 64:
CHAPTER FIVE MICROMECHANICAL ANALYS
Page 65 and 66:
56 5.2 Mesh Creation 10-node tetrah
Page 67 and 68:
58 carbon fibers were assumed to ha
Page 69 and 70:
60 Figure 5.6 The displacement fiel
Page 71 and 72:
62 small differences between these
Page 73 and 74:
64 Table 6.1 Comparison of the expe
Page 75 and 76:
66 Longitudinal CTE (1/°C) 2.25E-0
Page 77 and 78:
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Page 81 and 82:
Page 83 and 84:
74 Ishikava, T., Koyama, K., & Koba
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A numerical study on the thermal expansion coefficients of fiber

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