2018 Fiber and Composite Materials B

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Academic unit or major
Undergraduate major in Materials Science and Engineering
Kikutani Takeshi 
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Course description and aims

I Fundamental concepts on the structure and physical properties of fibrous materials including single-filament, fiber bundles and fiber re-inforced composites will be provided.
II Processing and resultant characteristics of fiber bundles and fiber re-inforced composites will be discussed.

Student learning outcomes

One of the most important application of organic materials is fibers. Fibers are widely used not only for garments but also as industrial materials. Single fibers have the structural characteristics of uni-axial symmetry and long and thin shape, which are the origin of strength against the tensile load and flexibleness against the torsion and bending deformations. Such characteristics of fibers are efficiently utilized in fiber re-inforced composites. Aim of this class is to give students fundamental knowledge on the characteristics of fiber bundles and fiber re-inforced composites.


Fiber structure, fiber bundles, fiber-reinforced composites, cumulative distribution function of fiber strength, Interfacial shear strength

Competencies that will be developed

Intercultural skills Communication skills Specialist skills Critical thinking skills Practical and/or problem-solving skills
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Class flow

This course is held over two academic quarters, with part A for explaining fundamental of fiber materials and analysis of fiber structure and part B for explaining mechanical properties of fiber bundle and fibeer re-inforced composites. Contents of part A and part B are closely related. Students are recommended to learn the two courses consecutively. Classes are held mainly using a blackboard, while power-point file and video image are used additionally for providing further understanding..

Course schedule/Required learning

  Course schedule Required learning
Class 1 Review of fibers and fiber re-inforced composites A Current trend of fiber re-inforced composites
Class 2 Property of single-filament - Fiber morphology and units for mechanical properties Linear density, fineness, specific strength, specific modulus
Class 3 Propety of single-filament - Relation between mechanical properties of fibers and high-order structure of fibers Strength, modulus, elongation and toughness
Class 4 Characteristics of fiber bundles Cumulative distribuion function of fiber strength
Class 5 Mechanical properties of fiber bundles Weibull distribution
Class 6 Microscopic analysis on mechanical behavior of fiber re-inforced composites Rule of mixture, short fiber re-inforced composites
Class 7 Mechanical properties and its anisotropy of fiber re-inforced composites Cox's theory, limiting fiber length, interfacial shear strength
Class 8 Summary on fibers and fiber re-inforced composites Reuse andrecycle of fibers



Reference books, course materials, etc.

Materials for the classes will be provided on OCW-i

Assessment criteria and methods

small tests at the end of each class and end-op-the-quater examination

Related courses

  • MAT.A206 : Mechanical and Thermal Properties of Materials

Prerequisites (i.e., required knowledge, skills, courses, etc.)


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