5.2. Container model analysis
Using the specific loading values from ISO 1496-1 as a
reference (Table 1) five loading scenarios were applied to the
container models until one of the container’s members yielded.
The five loading scenarios were selected, because ISO 1496-1
was the only reference which the analytical data could be
compared to. The analysis followed the linear simulation methodology
presented earlier using an incrementally increasing point
load externally applied as a surface load on the fitting surface in
Abaqus/CAE. The externally applied load increases the force
at a constant rate, and the force suddenly stops if stiffness decreases
or the yield strength was reached. The externally applied
surface loading, an equivalent point load, was applied to the appropriate
face of the corner fittings for each container model. Yielding
locations, displacements, von Mises stresses, forces, and container
behavior are discussed and analyzed for each loading scenario and
modification. The five loading scenarios are presented in Fig. 12.
For container models with one wall removed, Loading Scenarios
2 and 3 were applied over the removed wall section. Structures
using shipping containers can follow the loading scenarios designed
for transportation (ISO 1496-1) as long as the container
structures are not abnormal and stack irregularly (Fig. 1a).