Petri P. Kärenlampi
Lectures 24 h,
exercises 50 h, literature and examination 61 h
Properties. Anisotropy. The effect of
structure, moisture and temperature on properties. Sorption, changes in
dimensions, hysteresis. Diffusivity, permeability.
Thermal transitions. Composites, Strain
energy density. Strength.
Time-dependent material behavior.
The student will gain some knowledge of
materials science, especially in the case of porous, hygroscopic, anisotropic
and time-dependent materials. The student will be able to deduce and compute
some relations between structure, material properties, and structural
properties.
Any student is free to choose either to
attend in the lecture room or follow a livestream. However, there is a
restriction of 13 students in the lecture room.
livestream address:
http://www.uef.fi/live2
The livestream is a one-way communication
system. It needs to be complemented, to allow questions and comments. There
will be an e-mail connection during the lectures. The lecturer is available
during lectures at petri.karenlampi@gmail.com.
Regular uef-email of the lecturer is not reachable from the lecture room.
If you follow by livestream, please let the
lecturer know that you are there.
Grading:
Exercizes 25%
Exam 75%
Exercises are due
each Monday at 9 am, beginning January 18, to be returned to the green metallic
mailbox by main entrance of the Borealis Building. Due to the pandemic,
exercise reports also can be delivered to the e-mail mentioned above. Emails
sent after the due time will not be processed.
Lectures
24 hours: Monday, Wednesday
Tentative lecture
schedule:
Bor101/CA106
11.1.2021 8-10
Properties;
Material Properties; Stiffness, Compliance,
Conductivity, Resistivity
13.1. 8-12 Anisotropy,
Periodic Variation, Composites, Strength.
Trivial and Nontrivial Scaling.
18.1. 8-10 Size Effect on
Strength, Sorption, Saturation
20.1. 8-1 Thermal transitions, Cell Wall Water
25.1. 8-10 Sorption Hysteresis
27.1. 8-12 Diffusivity, Thermal Diffusion
01.2. 8-10 Newtonian Flow, Permeability
03.2.
8-12 Time-Temperature - Equivalency
10.2. 10-12 Discussion of the last
weekly exercise
Exercises:
Last exercise reporting session Wednesday, February
10, 10-12 at Bor101/CA106.
Literature:
Vogel, S., Comparative Biomechanics. Life’s
Physical World. Princeton University Press 2003, pp. 1-89; 299-441. (16 h study
time budgeted for an average student)
Gibson, L. J. and Ashby, M. F., Cellular solids. 2.
Ed., Cambridge University Press, 1997, pp. 1-428, 453-502. (8 h study time budgeted for
an average student)
Bodig, J.
and Jayne, B.: Mechanics of wood and wood composites. Van Nostrand Reinhold
Company, 1982, pp. 1-47, 176-393, 461-612. (20 h study time budgeted for an average student)
Jastrzebski,
Z. D., The nature and properties of engineering materials. John Wiley &
Sons, 3. ed. 1987, pp. 1-73, 125-193, 372-423, 522-560. (16 h study time budgeted
for an average student)
Some References:
Everett, D. H., Adsorption hysteresis. In "The solid-gas interface", (ed. E. A. Flood) Marcel Dekker, NY, 1967, vol. 2, pp. 1055-1113.
Wallström, L., and Lindberg, K. A. H., Distribution of added chemicals in the cell of high temperature dried and green wood of swedish pine, Pinus sylvestris. Wood Sci. Tech. 34(4):327-336 (2000).
Borrega, M. and Kärenlampi, P., Mechanical behavior of heat-treated spruce (Picea abies)wood at constant moisture content and ambient humidity. Holz als Roh- und Werkstoff 66:63-69 (2008).
Tryding, J., A modification of the Tsai-Wu failure criterion for the biaxial strength of paper. Tappi 77(8):132-134 (1994).
Final examination
February 15, 2021at 8-10, Room N114.
Possibility for eventual renewals March 1, 2021 at 8-10 Room N114.
Unlike usual,
anyone must fill an entry form in WebOodi, at latest two days before any Exam.
This is to make sure eventual restrictions due to the pandemic will not be
exceeded.