Dear All
Modulus of rupture (MOR) and modulus of elasticity (MOE) are two parameters in heat-treated woods. In the following paper, the Authors used time, temperature, and relative humidity or wood species parameters for determining the MOR and MOE by Artificial Neural Networks (ANNs).
https://www.sciencedirect.com/science/article/abs/pii/S0263224113006167
Are there mathematical equations and formulas for determining MOR and MOE with time, temperature, and relative humidity in standard codes and other papers?
Best regards
Mehdi Nikoo
Dear Mehdi Nikoo
There is no mathematical equation and formulas for determining MOR and MOE with time, temperature, and relative humidity. These parameters are the conditions for samples treatment before static bending test following ASTM D-143-14 . The Modulus of elasticity (MOE) and modulus of rupture (MOR) may determined from equations 5 and 6 in [1].
Best regards
[1]Article Vacuum-heat treatment of Scots pine ( Pinus sylvestris L.) w...
You will find standardised methods for calculation in ISO standards ISO 13061-4 etc) - and details regarding specimen preparation, control of variables and statistical sampling and validity. Standards are unlikely to provide methods that will enable the effects of process variables to be included in the calculation.
best wishes
Dear Prof. Mohammed Hussein j. H. Al'Atia and Prof. A. Levers
I hope you are doing fine, and thanks for answering my question. I saw equations based on the F, L, h, and b variables.
The data consists of three input variables time, temperature, and relative humidity, and two output variables, the MOR and MOE. I modeled the MOR and MOE, and I need equations or methods that have used these three variables to compare my results.
Could you please kindly send your opinions?
Best regards
Mehdi Nikoo
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