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 will be given at Bor101 (M107), and streamed
with Video Conference Apparatus into Microsoft Teams. Presently, there are no
restrictions to presence in the lecture room. Any participant shall have an
opportunity to present questions and comments either in the lecture room or
within the Teams-meeting.
Exam will hopefully be on site. Please check the exam
dates proposed below. Let the lecturer know if there is any time conflict.
Lectures on Wednesdays can be joined at
Lectures on Mondays can be joined at
Grading:
Exercizes
25%
Exam 75%
Exercises
are due each Monday at 9 am, beginning January 15, to be returned to the green
metallic mailbox by main entrance of the Borealis Building. For students out of
town, exercise reports also can be delivered to the e-mail petri.karenlampi@gmail.com .
Emails sent after the due time will not be processed.
Lectures 24 hours: Monday, Wednesday
Tentative lecture schedule:
Bor101/M107
10.1.2024 8-12 Bor101
Properties; Material Properties; Stiffness, Compliance,
Conductivity, Resistivity. Anisotropy, Periodic Variation, Composites.
15.1. 8-10 Elasticity of beams. Trivial and Nontrivial Scaling.
Strength.
Size Effect on Strength.
17.1. 8-12 Sorption, Saturation. Thermal transitions, Cell Wall
Water.
22.1. 8-10 Sorption Hysteresis
31.1. 8-12 Diffusivity, Thermal Diffusion
05.2. 8-10 Newtonian
Flow, Permeability
07.2. M107 8-12 Time-Temperature - Equivalency
14.2. Bor101 8-10 Discussion of the last weekly exercise
Exercises:
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 19,
2024, at 10-12, Room BOR100.
Possibility
for eventual renewals March 11, 2024, at 10-12 Room BOR100.
Lecture recordings
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=6fa8a70a-e842-4eea-81aa-b0f40066e31a
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=35d21348-bb58-4d71-9848-b0f40066e34b
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=651f99bc-2f70-4ca6-9533-b0fa00d77b0f
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=c163eac8-7225-49be-9507-b0fa00d7571f
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=4f147e2b-25e0-4b90-8751-b0fa00d756f4
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=b96f007e-4e0f-4823-aa45-b0ff008f9f85
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=03b47990-1043-4046-84e5-b10800ae543b
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=a90d28a8-7d39-4116-8609-b10800ae53e1
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=28ac2fc0-84cc-4765-bf41-b110005d05c8
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=c8e20518-4eba-4a6c-8571-b110005d0606
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=a7b4016a-fd2a-40e5-842e-b110005d0597
https://uef.cloud.panopto.eu/Panopto/Pages/Viewer.aspx?id=b83142f3-39ab-4976-a6f4-b11b00abe4a6