How wood deformations under load affect the structure?
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Wood deformations under load significantly impact the structure by influencing properties such as stiffness, strength, and long-term behavior. Deformation behaviors of wooden composites with advanced engineering materials like glass fiber, carbon fiber, and polyurethane resin were studied, showing a 17.3% increase in bending strength with the addition of glass fiber . Creep and relaxation phenomena in wood can lead to excessive deformation and instability issues, especially due to changes in mechanical properties caused by moisture content . Semi-rigid connections in timber portal frames exhibit increasing deformations over time under constant load, highlighting the non-linear nature of deformations and the significant influence of creep on connection stiffness . Wood modification through pressing alters its structure and deformability, affecting stiffness, modulus of elasticity, and Poisson's ratio . Factors like modulus of elasticity, density, and number of annual rings per cm significantly influence timber beam behavior under long-term load in natural climatic conditions .
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Open access 01 Jan 2013 | Wood deformations under load are influenced by properties like modulus of elasticity, density, and number of annual rings per cm. Latewood amount has minimal impact on timber structure behavior. |
06 Oct 2020 | Wood deformations under load can lead to increased displacements at semi-rigid connections in timber structures, with creep effects causing a decrease in connection stiffness over time. |
| Wood deformations under load affect the structure by transitioning through three phases, involving density equalization, cell displacement, and hysteresis, impacting stability and leading to non-uniform deformation patterns. | |
01 Jan 2022 | Wood deformations under load are influenced by creep, relaxation, and moisture content, leading to long-term instability. A 3D visco-elastic model considers these factors for predicting large deformations accurately. |
| Wood deformations under load affect the structure by influencing bending strength and strain distribution, crucial for designing wood composites with advanced engineering materials like glass and carbon fibers. |
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