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 13, to be returned to the green metallic
mailbox by main entrance of the Borealis Building.
Tentative
lecture schedule:
Bor101/MD200
07.1.2020
8-10
Properties;
Material Properties; Stiffness, Compliance,
Conductivity,
Resistivity
8.1. 8-12 Anisotropy,
Periodic Variation, Composites, Strength.
Trivial
and Nontrivial Scaling.
13.1. 8-10 Size Effect on Strength, Sorption,
Saturation
15.1. 8-12 Thermal transitions, Cell Wall Water
20.1. 8-10 Sorption Hysteresis
22.1. 8-12 Diffusivity, Thermal Diffusion
27.1. 8-10 Newtonian Flow, Permeability
29.1. 8-12 Time-Temperature –
Equivalency
Exercises:
Last exercise reporting session Wednesday, February 5, 8-10 at ???.
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 10,
2020 at 8-10, Room
???.
Possibility for eventual renewals February 24, 2020 at 8-10 Room ???.