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.
Lectures 24 hours:
Monday, Wednesday
Grading:
Exercizes 25%
Exam 75%
Exercises are due each Monday at 9 am, beginning January,
to be returned to the green metallic mailbox by main entrance of the Borealis
Building.
Tentative lecture schedule:
08.1.2018 8-10, Bor101/CA106
Properties; Material Properties; Stiffness,
Compliance,
Conductivity,
Resistivity
10.1. 8-12,
Bor101/CA106
Anisotropy, Periodic Variation, Composites, Strength.
Trivial and Nontrivial Scaling.
15.1. 8-10, Bor101/CA106
Size Effect on Strength, Sorption, Saturation
17.1. 8-12, Bor101/CA106
Thermal transitions, Cell Wall
Water
22.1. 8-10, Bor101/CA106
Sorption Hysteresis
24.1. 8-12, Bor101/CA106
Diffusivity, Thermal Diffusion
29.1. 8-10, Bor101/CA106
Newtonian Flow, Permeability
31.1. 8-12, Bor101/CA106
Time-Temperature – Equivalency
Exercises:
Last
exercise reporting session Wednesday,
February 7, 8-10 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 12, 2018 at 8-10, Room N103 / SN207.
Possibility
for eventual renewals February 26, 2018 at 8-10 Room N103 / SN207.