Theses and Dissertations

Bojan Cosovic

Issuing Body

Mississippi State University

Advisor

Lim, Hyungsuk

Committee Member

Zhang, Jilei

Committee Member

Lam, Frank

Committee Member

Shmulsky, Rubin

Date of Degree

5-1-2020

Original embargo terms

Worldwide

Document Type

Graduate Thesis - Open Access

Major

Wood Science and Wood Products, Pulp and Paper Technology

Degree Name

Master of Science

College

College of Forest Resources

Department

Department of Sustainable Bioproducts

Abstract

The flexural behavior of a light-weight wood-based composite system was studied through destructive experiments. The composite panel system consisted of profiled dimensional lumber, which makes up the surface layers, and 1"-thick boards running across the surface layers. Considering the changes in cross-sections along the panel due to the presence of the embedded boards, classical theories such as the Euler-Bernoulli beam and Kirchhoff-Love plate could not be implemented. Instead, the deflections and maximum failure loads of the composite system under full- and short-span bending tests were measured during their destructive bending testing, and were compared against the mechanical properties of the conventional three-ply CLT panel with the same thickness as the panel with embedded cross-laminations. According to maximum failure loads and deflections, it was concluded that full-span panels with embedded cross-laminations exhibited higher strength and stiffness, whereas short-span panels exhibited higher strength and lower stiffness properties compared to conventional CLT panels.

URI

https://hdl.handle.net/11668/16654

Sponsorship

United States Department of Agriculture (USDA), Agriculture Research Service (ARS)

Comments

wood construction panels||Mechanical testing||bending strength and stiffness||shear strength and stiffness

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