Analytical prediction of package collapse – consideration of windows in the package

How Small Is a Point Load? A Preliminary Study of the Deformation and Failure of Cartons Subjected to Non-Uniform Loads

“…As the radius increases 3.6 times, the strength only increases about 25%, from 20-25 N to 25-30 N, depending on load case. It should also be noted that these values are far from the expected box compression resistance of the package, which can be estimated at 161 N and 276 N for orientations A and B, respectively, using the method described by Ristinmaa et al 3 and Korin et al 4 Because the corner For the spheres with larger radii, a change of stiffness was observed at some value for the displacement (see Figure 7 for an example). If the hypothesis holds that the transition should occur when the sphere makes contact with the crease and the standing panel is compressed directly, then there should be a linear relationship between the theoretical displacement at transition as calculated by using Equation 1 and the measured displacement at transition.…”

“…It should also be noted that these values are far from the expected box compression resistance of the package, which can be estimated at 161 N and 276 N for orientations A and B, respectively, using the method described by Ristinmaa et al . and Korin et al . Because the corner panels carry a large portion of the load in box compression, this is to be expected.…”

“…It is not difficult to design a package that can withstand all of the loads it will be subjected to, but this comes at a cost of material use. Several studies over the last decades have provided good tools for predicting the strength of packages under evenly distributed loads (or see Frank for a comprehensive review). A number of studies on how the strength of corrugated boxes changes when they are stacked in a less optimal way have also been performed, showing reductions in strength up to 50% for small stacking faults .…”

On the use of artificial intelligence in predicting the compressive strength of various cardboard packaging

“…Towards the goals of structural modelling in packaging research and applications, the above mentioned refined understanding and modelling capability for corrugated board requires to be associated with a detailed knowledge of various packaging solutions, both in boxes and trays, particularly with reference to functionality, 19–21 numerical modelling, 22–25 experimental testing 26,27 and specifically to box strength 28–30 …”

“…Consistently, a crucial role in the design of corrugated board packaging is played also by the evaluation of paperboard strength and buckling resistance, for example, in other studies. [16][17][18] Towards the goals of structural modelling in packaging research and applications, the above mentioned refined understanding and modelling capability for corrugated board requires to be associated with a detailed knowledge of various packaging solutions, both in boxes and trays, particularly with reference to functionality, [19][20][21] numerical modelling, [22][23][24][25] experimental testing 26,27 and specifically to box strength. [28][29][30] In view of reliable structural applications, over the years, several approaches have been developed, specifically conceived as aiming at estimation of box strength of corrugated board packaging.…”