Zobrazeno 1 - 10
of 146
pro vyhledávání: '"John A. Nairn"'
Publikováno v:
Holzforschung. 75:1032-1041
Wood-based composites (WBCs) are engineered wood products that are commonly used in the building and furniture industries. Most research on their durability has relied on internal bond testing, bending strength properties, or damage observations. An
Publikováno v:
Wood Material Science & Engineering. 17:598-606
A persistent issue in adhesively bonded wood-based composites is their moisture durability. A key question, therefore, is: what is the best approach to assessing moisture durability of wood composi...
Autor:
John A. Nairn
Publikováno v:
Wood Material Science & Engineering. 16:299-311
This paper derives analytical predictions for notched cross-laminated timber (CLT) plate delamination using fracture mechanics for crack propagation from the notch root. The analysis accounts for b...
Autor:
John A. Nairn
Publikováno v:
European Journal of Wood and Wood Products. 77:405-419
Cross Laminated Timber (CLT) is made by laminating three or more timber layers with grain directions in alternate layers at right angles to each other. This structure, with its numerous wood bonds glued in cross-grained directions, develops residual
Publikováno v:
Journal of Structural Engineering. 146
Although toenailing has been common practice in light-frame residential construction, using toe screws in cross-laminated timber (CLT) shear walls has not been investigated. CLT shear walls...
Publikováno v:
Journal of Structural Engineering. 146
This research investigated the mechanical characteristics of cross-laminated timber (CLT) connections fastened with structural wood screws, also known as self-tapping screws (STS). The CLT ...
Autor:
John A. Nairn
Publikováno v:
Engineering Fracture Mechanics. 203:197-207
Because damage mechanics modeling involves damage initiation followed by propagation that releases energy, it is often uncritically assumed to be an alternative implementation of fracture mechanics. This paper tests that claim by running side-by-side
Autor:
John A. Nairn
Publikováno v:
Computational Particle Mechanics. 6:133-144
Heat conduction through an object with material interfaces or cracks is influenced by heat flow across those discontinuities. This paper presents a numerical particle method for modeling such heat flow coupled to computational mechanics all within th
Autor:
John A. Nairn, Chad C. Hammerquist
Publikováno v:
Wood Science and Technology. 52:1271-1288
The material point method (MPM) was used to numerically model pressure-driven flow of adhesive into hybrid poplar wood. The cellular structure of the hybrid poplar was discretized in an MPM model by converting X-ray computed tomography (XCT) voxels f
Autor:
John A. Nairn, Chad C. Hammerquist
Publikováno v:
Journal of Materials Research. 33:1369-1381
A numerical nanoindentation model was developed using the Material Point Method (MPM), which was chosen because it can handle both large deformations and dynamic contact under the indenter. Because of the importance of contact, prior MPM contact meth