Stereomicroscopic optical method for the assessment of load transfer patterns across the wood-adhesive bond interphase
-
Matthew Schwarzkopf
and
Lech Muszyński
Abstract
The mechanical performance of wood-based composites is determined by the mechanical properties of their individual components and the effective load transfer between these components. In laminated wood composites, this load transfer is facilitated by the adhesive bond. The experimental methodology developed in this study measures and analyzes the full-field deformation and strain distributions across the loaded wood-adhesive interphase at a micromechanical level. Optical measurements were performed based on the principles of digital image correlation by a stereomicroscopic camera system. This system allows the monitoring of in-plane deformations as well as out-of-plane displacements, providing full-field 3D surface strain maps across the adhesive bond. These measurements can be used to improve the understanding of the load transfer between the adherents and the contribution of the adhesive to the mechanical properties of the bulk composite and serve as a quantitative input for numerical modeling and simulations aimed at the improvement of the products.
Acknowledgments
This research project was funded by the Wood-Based Composites Center, a National Science Foundation Industry/University Cooperative Research Center (Award No. IIP-1034975). The authors would also like to acknowledge John Nairn for providing numerical modeling simulations.
References
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©2015 by De Gruyter
Articles in the same Issue
- Frontmatter
- Original Articles
- Study on the residual lignin in Eucalyptus globulus sulphite pulp
- Hydrogenolysis of lignin in ZnCl2 and KCl as an inorganic molten salt medium
- Synthesis of lignin polyols via oxyalkylation with propylene carbonate
- Preparation of water-dispersive poly(3,4-ethylenedioxythiophene) (PEDOT) conductive nanoparticles in lignosulfonic acid solution
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- Dynamic response of earlywood and latewood within annual growth ring structure of Scots pine subjected to changing relative humidity
- One-stage thermo-hydro treatment (THT) of hardwoods: an analysis of form stability after five soaking-drying cycles
- The variation of tangential rheological properties caused by shrinkage anisotropy and moisture content gradient in white birch disks
- Inheritance of basic density and microfibril angle and their variations among full-sib families and their parental clones in Picea glehnii
- Mechanical properties and chemical composition of beech wood exposed for 30 and 120 days to white-rot fungi
- Chemical improvement of surfaces. Part 3: Covalent modification of Scots pine sapwood with substituted benzoates providing resistance to Aureobasidium pullulans staining fungi
- Chemical and ultrastructural changes of ash wood thermally modified using the thermo-vacuum process: I. Histo/cytochemical studies on changes in the structure and lignin chemistry
- Chemical and ultrastructural changes of ash wood thermally modified (TMW) using the thermo-vacuum process: II. Immunocytochemical study of the distribution of noncellulosic polysaccharides
- Revisiting hardboard properties from the fiber sorting point of view
- Effects of acetylation and formalization on the dynamic water vapor sorption behavior of wood
- Immune-regulatory activity of methanolic extract of Acacia confusa heartwood and melanoxetin isolated from the extract
- Stereomicroscopic optical method for the assessment of load transfer patterns across the wood-adhesive bond interphase
Articles in the same Issue
- Frontmatter
- Original Articles
- Study on the residual lignin in Eucalyptus globulus sulphite pulp
- Hydrogenolysis of lignin in ZnCl2 and KCl as an inorganic molten salt medium
- Synthesis of lignin polyols via oxyalkylation with propylene carbonate
- Preparation of water-dispersive poly(3,4-ethylenedioxythiophene) (PEDOT) conductive nanoparticles in lignosulfonic acid solution
- Properties of polyurethane (PUR) films prepared from liquefied wood (LW) and ethylene glycol (EG)
- Dynamic response of earlywood and latewood within annual growth ring structure of Scots pine subjected to changing relative humidity
- One-stage thermo-hydro treatment (THT) of hardwoods: an analysis of form stability after five soaking-drying cycles
- The variation of tangential rheological properties caused by shrinkage anisotropy and moisture content gradient in white birch disks
- Inheritance of basic density and microfibril angle and their variations among full-sib families and their parental clones in Picea glehnii
- Mechanical properties and chemical composition of beech wood exposed for 30 and 120 days to white-rot fungi
- Chemical improvement of surfaces. Part 3: Covalent modification of Scots pine sapwood with substituted benzoates providing resistance to Aureobasidium pullulans staining fungi
- Chemical and ultrastructural changes of ash wood thermally modified using the thermo-vacuum process: I. Histo/cytochemical studies on changes in the structure and lignin chemistry
- Chemical and ultrastructural changes of ash wood thermally modified (TMW) using the thermo-vacuum process: II. Immunocytochemical study of the distribution of noncellulosic polysaccharides
- Revisiting hardboard properties from the fiber sorting point of view
- Effects of acetylation and formalization on the dynamic water vapor sorption behavior of wood
- Immune-regulatory activity of methanolic extract of Acacia confusa heartwood and melanoxetin isolated from the extract
- Stereomicroscopic optical method for the assessment of load transfer patterns across the wood-adhesive bond interphase
