As the use of engineered wood products as such as cross-laminated timber (CLT) evolves in United States, it’s imperative to understand its behavior under different circumstances as well as to explore new possible streams for product’s application. In that matter, it was proposed that a research study would be developed to evaluate the performance of CLT panels focusing on strength and stiffness properties. To accomplish this goal, three main objectives were traced: 1) To complete preliminary test on traditional lumber in order to observe notched wood failure behavior focusing on strength, ductility, and failure mode; 2) To perform mechanical testing and non-destructive evaluation on 3-ply CLT control panels in order to compare design calculation methods and efficiency of NDE on CLT; and 3) To perform mechanical testing on notched 3-ply CLT samples to evaluate the influence of notches and stitching reinforcement on panels. Based on these objectives, this dissertation features five main sections: 1) General Introduction, 2) Technical note: Ductility and brittleness in small clear notched S-P-F beams, 3) Evaluation of the modulus of elasticity and modulus of rupture of cross-laminated timber with longitudinal vibration NDE techniques, 4) Case study of 3-ply commercial southern pine CLT mechanical properties and design values, and 5) Effect of notching on 3-ply southern pine cross-laminated timber panels stiffness and strength.
| Identifer | oai:union.ndltd.org:MSSTATE/oai:scholarsjunction.msstate.edu:td-6463 |
| Date | 13 May 2022 |
| Creators | Spinelli Correa, Laurice Mara |
| Publisher | Scholars Junction |
| Source Sets | Mississippi State University |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | Theses and Dissertations |
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