Course detail

LCF5852 - Physical and Mechanical Properties of Wood

Credit hours

In-class work
per week
per week
15 weeks
120 hours

José Nivaldo Garcia

Develop the students perception of the properties obtained and motivate them to reflect on the fidelity of the essays in the sense of discovering the pure properties. To focus the natural variability of the basic properties of the wood within forest populations according to their nature (native or planted), age, species, rate of growth, etc., and motivate the discussion of their cause and the appropriate control techniques within the management and breeding. Apply destructive and non-destructive tests and discuss the advantages, disadvantages, similarities and differences of the results obtained. To present technologies applied to the alteration of physical and mechanical properties of wood.

1. Verification of the operation of wood structures under applied loads
2. Identification of 4 physical and 4 mechanical properties responsible for the operation of these structures
3. Destructive and non-destructive tests
4. Installation of experiments to obtain each of these properties, focusing on: - definition of the experimental design - pre-sampling - physical and mechanical tests - statistical analysis of the data - presentation of the results in the form of a seminar
5. Defects associated with the Physical and Mechanical Properties of Wood. - Growth stress - Reaction wood - Juvenile wood - Knots - Marrow - Cracks - Bonding - Retractions - Twisting
6. Study of the variability of these properties and their associated defects in planted forests: - in the tree: longitudinal and radial - in the site: between classes, between trees - in the population: between extracts - in the species: between populations
7. Control over physical and mechanical properties: - by forest management - by forest improvement - by technologies for the processing of roundwood in sawn wood - by technologies for the use of forest products
8. Genetic parameters - heritability of technological properties - selection gains
9. Technology for modification of physical and mechanical properties: thermal treatment, surface activation, microwave, wood densification, lignin plastification by temperature

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