## 3 Results and Discussion
### Creep Behavior Modeling and Lifetime Prediction for the Target Shipping Container
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline
**Division** & **rh (\%)** & \
\begin{tabular}{c} **Applied Load** \\ **Level (P) (\% CS)** \\ \end{tabular} & \(CR_{12}\) **(1) (1/min)** &
\begin{tabular}{c} **Correction Factor,** \\ **P/(100-P)** \\ \end{tabular} & \(CR_{\text{FDD}}\) **(2) (1/min)** & **Lifetime (min)** \\ \hline \multirow{8}{*}{Container A} & \multirow{4}{*}{70\%} & 9.3084 & 7.8404 \(\times 10^{-7}\) & 0.1027 & 8.0473 \(\times 10^{-8}\) & 85,000 \\  & & 15.9574 & 9.4011 \(\times 10^{-7}\) & 0.1899 & 1.7850 \(\times 10^{-7}\) & 38,300 \\  & & 22.6064 & 1.0983 \(\times 10^{-6}\) & 0.2922 & 3.2081 \(\times 10^{-7}\) & 21,300 \\ \cline{2-6}  & \multirow{4}{*}{70\%} & 10.7362 & 9.9283 \(\times 10^{-7}\) & 0.1203 & 1.1941 \(\times 10^{-7}\) & 64,500 \\  & & 18.4049 & 1.1839 \(\times 10^{-6}\) & 0.2255 & 2.6705 \(\times 10^{-7}\) & 28,800 \\  & & 26.0736 & 1.3832 \(\times 10^{-6}\) & 0.3526 & 4.8785 \(\times 10^{-7}\) & 15,800 \\ \cline{2-6}  & \multirow{4}{*}{90\%} & 12.3239 & 1.1962 \(\times 10^{-6}\) & 0.1405 & 1.6814 \(\times 10^{-7}\) & 50,900 \\  & & 21.1368 & 1.4276 \(\times 10^{-6}\) & 0.2679 & 3.8239 \(\times 10^{-7}\) & 22,400 \\  & & 29.9296 & 1.6681 \(\times 10^{-6}\) & 0.4271 & 7.1251 \(\times 10^{-7}\) & 12,000 \\ \hline \multirow{8}{*}{Container B} & \multirow{4}{*}{50\%} & 10.3934 & 1.5357 \(\times 10^{-6}\) & 0.1159 & 1.7813 \(\times 10^{-7}\) & 70,700 \\  & & 17.8156 & 1.8428 \(\times 10^{-6}\) & 0.2168 & 3.9947 \(\times 10^{-7}\) & 31,500 \\  & & 25.2377 & 2.1827 \(\times 10^{-6}\) & 0.3376 & 7.3682 \(\times 10^{-7}\) & 17,100 \\ \cline{2-6}  & \multirow{4}{*}{70\%} & 12.2512 & 1.8010 \(\times 10^{-6}\) & 0.1396 & 2.5145 \(\times 10^{-7}\) & 53,600 \\  & & 21.0000 & 2.2129 \(\times 10^{-6}\) & 0.2658 & 5.8824 \(\times 10^{-7}\) & 22,900 \\  & & 29.7488 & 2.7047 \(\times 10^{-6}\) & 0.4235 & 1.1453 \(\times 10^{-6}\) & 11,800 \\ \cline{2-6}  & \multirow{4}{*}{90\%} & 13.7081 & 2.0664 \(\times 10^{-6}\) & 0.1589 & 3.2826 \(\times 10^{-7}\) & 46,500 \\  & & 23.4973 & 2.5830 \(\times 10^{-6}\) & 0.3072 & 7.9335 \(\times 10^{-7}\) & 19,300 \\  & & 33.2865 & 3.2288 \(\times 10^{-6}\) & 0.4990 & 1.6110 \(\times 10^{-6}\) & 9480 \\ \hline \multirow{8}{*}{Container C} & \multirow{4}{*}{50\%} & 10.9593 & 5.4254 \(\times 10^{-6}\) & 0.1231 & 6.6777 \(\times 10^{-7}\) & 48,100 \\  & & 18.7967 & 5.0598 \(\times 10^{-6}\) & 0.2315 & 1.1712 \(\times 10^{-6}\) & 27,400 \\  & & 26.6260 & 4.8542 \(\times 10^{-6}\) & 0.3630 & 1.7615 \(\times 10^{-6}\) & 18,200 \\ \cline{1-1} \cline{2-6}  & \multirow{4}{*}{70\%} & 14.3404 & 5.4809 \(\times 10^{-6}\) & 0.1674 & 9.1757 \(\times 10^{-7}\) & 32,800 \\  & & 24.5957 & 6.5818 \(\times 10^{-6}\) & 0.3263 & 2.1469 \(\times 10^{-6}\) & 14,000 \\  & & 34.8404 & 1.1741 \(\times 10^{-5}\) & 0.5347 & 6.2778 \(\times 10^{-6}\) & 4800 \\ \cline{1-1} \cline{2-6}  & \multirow{4}{*}{90\%} & 18.9859 & 5.5365 \(\times 10^{-6}\) & 0.2344 & 1.2975 \(\times 10^{-6}\) & 20,100 \\  & & 32.5634 & 8.1000 \(\times 10^{-6}\) & 0.4828 & 3.9113 \(\times 10^{-6}\) & 6670 \\  & & 46.1268 & 1.8628 \(\times 10^{-5}\) & 0.8563 & 1.5949 \(\times 10^{-5}\) & 1640 \\ \hline \hline \end{tabular} Note: (1) Average creep rate in 12 h test. (2) Average creep rate over the entire time up to failure at load level \(P\).  
\end{table} 
Table 7: Lifetime prediction results of the target shipping containers [10]. Figure 6: Average creep rate and lifetime with respect to relative humidity and applied load for the target shipping containers. As the applied load increased at all relative humidity levels in this study, the rate of increase in the CRFD was higher Except for 'horizontal long' container C, which has a unique structure compared to containers A and B, the higher the applied load level, the greater the difference in average creep rate by relative humidity. In general, it was found that the average creep rate of the container was more affected by the applied load than the relative humidity (Figure 6a).