Petri P. Kärenlampi
Lectures 30 h, exercises 70 h, literature 120 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. Kubelka-Munk Optics.
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 30 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:
12.1.2015 8-10, N106/CA106
Properties; Material Properties; Stiffness,
Compliance,
Conductivity,
Resistivity
14.1. 8-12,
Bor101/CA106
Anisotropy, Periodic Variation, Composites, Strain Energy
Density, Strength. Rigidity in Tension, Twisting and Bending
19.1. 8-10,
Bor101/CA106
Mass Density Effects, Dimensionality, Percolation,
Connectivity
21.1. 8-12, Bor101/CA106
Size Effect on Strength,
Sorption, Shrinkage and Expansion
26.1. 8-10, N106/CA106
Sorption Hysteresis
28.1. 8-12, C2/CA106
Thermal transitions, Cell Wall
Water
2.2. 8-10, N102
Diffusivity, Thermal Diffusion
4.2. 8-12, N102
Newtonian Flow, Permeability
9.2. 8-10, N102
Time-Temperature-Moisture-Specific Volume – Equivalency
11.2. 8-12,
Bor101/CA106
Kubelka-Munk Optics
18.2. 8-12, CK216/CA106
Discussion of last exercise
Exercises:
Last exercise reporting session Wednesday, February 18, 8-12 at Bor101/CA106.
Literature:
Vogel, S., Comparative Biomechanics.
Life’s Physical World. Princeton University Press 2003, pp. 1-89; 299-441. (30
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. (20 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. (40 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. (30
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 23, 2015 at 8-10, Room Bor100 .
Possibility
for eventual renewals March 19, 2015 at 8-10 Room N101.