Sylabus předmětu PMEF - Physical and Mechanical Properties of Wood (FFWT - WS 2019/2020)


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Course code: PMEF
Course title in language of instruction: Physical and Mechanical Properties of Wood
Course title in Czech: Physical and Mechanical Properties of Wood
Course title in English: Physical and Mechanical Properties of Wood
Mode of completion and number of credits: Exam (4 credits)
(1 ECTS credit = 28 hours of workload)
Mode of delivery/Timetabled classes: full-time, 2/1 (hours of lectures per week / hours of seminars per week)
Language of instruction: English
Level of course: master
Semester: WS 2019/2020
Name of lecturer: Ing. Martin Brabec, Ph.D. (examiner, instructor, tutor)
Ing. Luděk Praus, Ph.D. (examiner, instructor, lecturer, tutor)
Ing. Václav Sebera, Ph.D. (examiner, instructor, lecturer, supervisor, tutor)
Ing. Jan Tippner, Ph.D. (examiner, instructor, lecturer, tutor)
Prerequisites: State Bachelor Examination
 
Aims of the course:
Knowledge of the properties of wood and wood-based materials for using in wood construction, furniture and for other wood products. Learning the fundamentals of materials engineering - understanding the relationship between chemical composition, anatomical structure and properties of wood.
 
Course contents:
1.Physical properties of wood. (allowance 0/2)
 
a.The nature of wood and wood products. Fundamental properties of softwoods and hardwoods.
Elementary wood structure -- macroscopic and microscopic characteristics of wood.
Density and specific gravity:
Basic wood -- moisture, density, and temperature, relationships. Specific gravity, moisture content, hygroscopicity, dimensional changes due to changing moisture content.
b.Water and wood. Wood ultrastructure. Moisture movements in wood. Woos drying and dimensional changes.
Thermal conductivity and moisture diffusion:
Coupled mass and heat transfer.
c.Thermal properties of wood - heat capacity, heat transfer, heat and thermal conductivity.
Acoustic properties of wood - wood sound propagation, sound damping, resonant properties of wood, building acoustics.
Electrical and magnetic properties of wood - conductivity, dielectric strength properties. Optical properties of wood.

2.Mechanical properties of wood. (allowance 0/2)
 
a.Strength of wood. Lumber and composite products.
Mechanical properties:
Introduction. Mechanics of deformable body. Stress and strain tensors, transformation of stress and deformation components. Equilibrium equation. Simple stress-strain systems -- uniaxial and shear stress, stress-strain curve. Mohr's circle.
b.Hooke's law. Application of the theory of elasticity on simple states of stress - wood strength in pressure, tension, bending, shear and torsion.
Determination of mechanical properties.
c.Rheology of wood - wood creep, the effect of stress time, permanent strength. Plasticity of wood, viscosity. Stiffness of wood.
Factors influencing the physical and mechanical properties of wood. Evaluation of quality wood. Modification of wood properties. Durability and resistance.
Destructive and nondestructive testing. Numerical simulation of physical fields.

 
Learning outcomes and competences:
Generic competences:
 
-Ability to apply knowledge
-Ability to create new ideas (creativity)
-Ability to make decisions
-Ability to solve problems
-Ability to work in international context
-Ability to work independently
-Capacity to learn
-Communication in second language
-Ethical commitment
-General knowledge
-Professional knowledge
-Science and research skills
-Skilled at utilizing and processing information
-Spirit of enterprise

Specific competences:
 
-Ability of laboratory analysis and their interpretation
-Ability to determine reasons of wood response
-Ability to identify base properties of wood
-Knowledge of the kind of materials based on wood, their properties and using
-Master mathematical tools necessary for solving real world problems.

Type of course unit: optional
Year of study: Not applicable - the subject could be chosen at anytime during the course of the programme.
Work placement: There is no compulsory work placement in the course unit.
Recommended study modules: -
 
Learning activities and study load (hours of study load):
Type of teaching methodDaily attendance
Direct teaching
     practice10 h
     seminar2 h
     laboratory work10 h
     consultation1 h
     project work2 h
     public presentation (oral)2 h
Self-study
     preparation for regular assessment10 h
     preparation of presentation10 h
     elaboration of reports15 h
     writing of seminar paper50 h
Total112 h
 
Assessment methods:
Credit (reports of 10 exercises ranked 0-1, seminar worked rated 0-5, presentations rated 0-5, a minimum total of 13 points, test 20 questions)
Test (solution of problems using available tools, oral exam of four topics - preparation in written form, verbal response).
 
Recommended reading:
TypeAuthorTitlePublished inPublisherYearISBN
RQComposite Materials: Mechanical Behavior and Structural AnalysisNew YorkSpringer Verlag19980-387-98426-7
RQBODIG, J. -- JAYNE, B A.Mechanics of Wood and Wood CompositesMalabarKrieger Publish.Comp.19930-89464-777-6
RQBUCUR, V.Acoustics of WoodBoca RatonCRC Press19950-8493-4801-3
RQBUCUR, V.Nondestructive characterization and imaging of woodBerlinSpringer20033-540-43840-8
RQTransport Processes in WoodBerlinSpringer-Verlag19843-504-12574-4
RQWood: Influences of moisture on physical propertiesVirginiaVirg.Polytech.Institute&State University19950-9622181-0-3
RQWood-Water RelationsBerlinSpringer-Verlag19883-540-19258-1
RQTORGOVNIKOV, G.Dielectric Properties of Wood and Wood-Based MaterialsBerliSpringer-Verlag19933-540-55394-0

RQrequired
RErecommended


Last modification made by Ing. Alice Malá on 05/20/2019.

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