A5055020820- Wood Treatment and Properties
- Material Properties and Processing
- Tree Root and Stability Studies
- Mechanical Behavior of Composites
- Natural Fiber Reinforced Composites
- Structural Behavior of Reinforced Concrete
- Structural Engineering and Vibration Analysis
- Structural Load-Bearing Analysis
- Optical measurement and interference techniques
- Fire effects on concrete materials
- Seed and Plant Biochemistry
- Food composition and properties
- High-Velocity Impact and Material Behavior
- Advanced Cellulose Research Studies
- Bamboo properties and applications
- Lignin and Wood Chemistry
- Forest ecology and management
- Metallurgy and Material Forming
University of New Brunswick
2020-2024
Indian Plywood Industries Research and Training Institute
2021
Forest Products Laboratory
2021
Department of Primary Industries
2021
Nanjing Forestry University
2015-2020
Fujian Agriculture and Forestry University
2017
Principles and methods to dynamically test the Poisson’s ratio of isotropic material timber are proposed in this work. Five species lumbers were processed into cantilever plates tangential, radial, cross sections with different length-width ratios 6, 5, 4, 3. The “Shell 63” element ANSYS software was adopted calculate strain stress under first-order bending mode. paste position rosette for obtained through strain-stress relationship regression analysis states stress, analysis, plane stress....
The interlaminar shear stresses of the three-layer, five-layer, and seven-layer cross laminated timber (CLT) those oriented beams were calculated according to Hooke’s law differential relationship between beam bending moment force. maximum CLT are related number layers elastic modulus ratio EL/ET (or EL/ER) parallel perpendicular layers. strength Hemlock was positively correlated with its layer. results showed that short-span had three failure modes when subjected a three-point test, namely...
To meet consumer requirements for comfort in wooden structure construction, test mode methods (the environmental excitation method and impact method) have been used to six measuring points of the flooring a two-story residential light-wood structure. The following tests were performed: fundamental frequency floor under mode; ball dynamic vibration single rhythmic running basketball tennis pedestrian jump, single-step, steady walking, movement. analysis was validated based on results peak...
Abstract In this work, according to the first-order torsional mode shape function computed by ANSYS software and optimization principle, relationship between shear modulus of materials frequency free plate was established in terms energy method. Mode coefficients orthotropic (lumbers Sitka spruce, Scots pine, Beech, et al.) isotropic (steel, aluminum, glass) were calculated. The correlation lumbers tangential, radial, cross sections length-width width-thickness ratios obtained. Also, ratio...
Abstract In this work, a method for dynamic testing of Poisson’s ratio dimension lumber was proposed, based on the strain oscillation curve first-order bending vibration cantilever plate. The is efficient and convenient with good repeatability high accuracy. ratios along grain across (μLR μRL, respectively) radial sections (LR section) (μRT) transverse Sitka Spruce specimens were measured. results show that LR section μLR one order higher than μRL. Additionally, accuracy elastic modulus...
This study examined the racking performance of poplar laminated veneer lumber (LVL) frames using bolted steel filling plates to connect beam-column joints, LVL embedment bars and frame-shear hybrid walls made studs oriented strand board (OSB) sheathing panels. A new design load spreader beam was used on side top a specimen apply monotonic cyclic loadings. It found that lateral force resistance, stiffness, ultimate loads pure with plate connections closed rod were much lower than those wall...
The correlation between the bending elastic modulus of lumbers along primary direction and that resultant cross-laminated timber (CLT) plates in full size suitable for slabs or wallboards was investigated to verify feasibility predicting performance during manufacturing heavy building structures this new type material. A batch Canada hemlocks lumber graded based on a vibrational test measures longitudinal modulus. shear transverse were also measured using scheme torsional modal analysis...
Glue-laminated lumber-based mass timber products, such as glue-laminated (GLT), have been widely used in construction.This study was aimed at understanding the mixed mode fracture behaviour of a bond-line GLT using modified Arcon fixture and digital image correlation (DIC) technique.The laminated wood specimens were made white spruce (Picea glauca), laminations, structural adhesives, say emulsion polymer isocyanates (EPI) polyurethanes (PUR).The Arcan employed to implement stress conditions...