Calculate maximum weight box can hold

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Discussion Overview

The discussion revolves around calculating the maximum weight a cardboard box can hold based on the tensile strength of the tape used to seal it. Participants explore the relationship between the tape's properties, the strength of the adhesive bond, and the weight of the contents inside the box. The focus is on practical experimentation and theoretical understanding.

Discussion Character

  • Exploratory, Technical explanation, Experimental/applied

Main Points Raised

  • One participant seeks help in calculating the maximum weight a box can hold based on the tape's tensile strength.
  • Another participant explains that the force on the tape corresponds to the weight of the object inside the box and emphasizes that tensile strength alone may not determine the outcome.
  • A participant suggests that the strength of the glue is also a critical factor in the tape's performance.
  • It is proposed that measuring the tape's strength when bonded to the cardboard could provide insights into the adhesive's effectiveness.
  • A later reply recommends a practical experiment of adding weights incrementally to determine the failure point of the tape bond.

Areas of Agreement / Disagreement

Participants generally agree on the importance of both the tape's tensile strength and the adhesive bond's quality, but there is no consensus on a definitive method for calculating the maximum weight without experimental validation.

Contextual Notes

The discussion does not address specific assumptions about the materials involved, nor does it resolve the mathematical steps necessary for a precise calculation of maximum weight.

type47
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hi,
This is probably very simple issue, but i am not an engineer nor have an understanding of basic physic... I need to calculate if the tape used to connect (sealed) to ends of the cardboard box will withstand the weight of the product i put inside it. I have a tape properties (tensile strength etc.). i just don't know how to calculate maximum weight i can put inside.
Can anyone help please?
Thank you very much
 
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the force on the tape is the weight of the object in the box

tensile stress = force / areaHowever, the tensile strength of the tape is not the determining factor!

How good is the glue. A very strong tape weakly bonded will fail.
 
Thank you William. So if I could measure somehow how strong is the tape when glued on the cardboard that should give me an indication on how strong is the glue right?
 
yes, if this is an experiment you could do that.

Tape the box shut, and incrementally add weights until the tape failed. That will give you a sense of the strength of the bond
 

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