Drying Stress and Strain of Wood: A Review
Abstract
:1. Introduction
2. Wood Drying Stress
2.1. Wood Drying Defects and Drying Stress
2.2. The Generation and Development Mechanism of Wood Drying Stress
2.3. Advances of the Wood Drying Stress Model
3. Composition of Drying Strain
3.1. Free Shrinkage Strain
3.2. Elastic Strain
3.3. Viscoelastic Creep Strain
3.4. Mechano-Sorptive Creep Strain
4. Testing Methods of Wood Drying Stress and Strain
4.1. Commonly Used Testing Methods
4.2. Modern Testing Methods
5. Artificial Neural Network and Its Application in the Field of Wood Drying
5.1. Artificial Neural Network (ANN)
5.2. Back Propagation (BP) Neural Network Structure and Algorithm
5.2.1. BP Neural Network Structure
5.2.2. BP Neural Network Algorithm
5.3. Application of ANNs in the Field of Wood Drying
6. Conclusions and Prospects
Author Contributions
Funding
Conflicts of Interest
References
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Sample | Final MC (%) | Drying Uniformity (%) | MC Deviation in the Thickness (%) | Residual Stress Index (%) |
---|---|---|---|---|
Pre-treated quarter-sawn | 8.55 | ±0.54 | 1.34 ± 0.46 | 1.29 ± 0.44 |
Control quarter-sawn | 9.23 | ±0.87 | 2.58 ± 1.17 | 2.26 ± 0.85 |
Sig. | — | * | * | |
Pre-treated flat-sawn | 8.02 | ±0.43 | 1.03 ± 0.27 | 1.28 ± 0.82 |
Control flat-sawn | 9.01 | ±0.62 | 1.51 ± 0.38 | 2.49 ± 0.88 |
Sig. | * | * | * |
Drying Condition (°C) | Maximum (%) | Time to Reach the Maximum (h) |
---|---|---|
85 1 | 3.65 | 5 |
105 | 4.96 | 5 |
115 | 3.14 | 3 |
125 | 4.23 | 1.5 |
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Yin, Q.; Liu, H.-H. Drying Stress and Strain of Wood: A Review. Appl. Sci. 2021, 11, 5023. https://doi.org/10.3390/app11115023
Yin Q, Liu H-H. Drying Stress and Strain of Wood: A Review. Applied Sciences. 2021; 11(11):5023. https://doi.org/10.3390/app11115023
Chicago/Turabian StyleYin, Qin, and Hong-Hai Liu. 2021. "Drying Stress and Strain of Wood: A Review" Applied Sciences 11, no. 11: 5023. https://doi.org/10.3390/app11115023