Strength Grading of Full-Scale Chinese Fast-Growing Poplar Wood for Structural Building Applications
Abstract
:1. Introduction
2. Materials and Methods
2.1. Materials
2.2. Methods
2.3. Weibull, Normal, and Log-Normal Distribution Fitting Tests
2.3.1. Weibull Distribution
2.3.2. Weibull Distribution Fitting Test
2.3.3. Normal and Log-Normal Distribution Fitting Tests
2.3.4. Parameter Estimation
2.4. Timber Classification
3. Results and Discussion
3.1. Normal Distribution and Log-Normal Distribution Tests
3.2. Weibull Distribution Test and Strength Grading of Poplar
3.3. Effect of Density and Moisture Content on MOE
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Distribution | Skewness | Kurtosis | R2 | K–S |
---|---|---|---|---|
Z-Score | ||||
Normal | 0.259 | 0.235 | / | / |
Log-normal | 8.87 | 3.38 | / | / |
Weibull | / | / | 0.969 | 0.051 |
Given MOE Range | Probability |
---|---|
(μ − σ, μ + σ) | 0.959 |
(μ − 2σ, μ + 2σ) | 0.999 |
(μ − 3σ, μ + 3σ) | 1 |
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Qian, J.; Yue, K.; Li, X.; Pu, Y.; Chen, K.; Wu, P.; Zhang, Z. Strength Grading of Full-Scale Chinese Fast-Growing Poplar Wood for Structural Building Applications. Forests 2024, 15, 1602. https://doi.org/10.3390/f15091602
Qian J, Yue K, Li X, Pu Y, Chen K, Wu P, Zhang Z. Strength Grading of Full-Scale Chinese Fast-Growing Poplar Wood for Structural Building Applications. Forests. 2024; 15(9):1602. https://doi.org/10.3390/f15091602
Chicago/Turabian StyleQian, Jin, Kong Yue, Xiang Li, Yan Pu, Kaiyi Chen, Peng Wu, and Zhongfeng Zhang. 2024. "Strength Grading of Full-Scale Chinese Fast-Growing Poplar Wood for Structural Building Applications" Forests 15, no. 9: 1602. https://doi.org/10.3390/f15091602