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Materials Science at Oregon State University

Micro X-ray computed tomography of adhesive bonds in wood

Date: Thursday, Feb 6th
Presenter: Prof. Fred Kamke, OSU Wood Science Department


Micro X-ray computed tomography (XCT) was applied to the study of adhesive penetration into wood. The goal of the project was to develop a numerical simulation model of the mechanical behavior of bonded wood assemblies. The scale of the interphase region of adhesive bonds in wood is in the range of 1 to 100 micrometers, which is the same scale as the major anatomical features found in wood. Consequently, the creation of a mechanistic model required a detailed characterization of the physical system of wood cells, cured adhesive polymer, and voids. XCT scans of adhesive bonds were performed at the Advanced Photon Source at Argonne National Laboratory. Results of XCT experiments on three types of adhesives and three wood species will be presented. Some simulation results will be discussed.