Why do pipes attached to hoses and nozzles tend to rupture close to the end where they are attached to the hose?
In: Engineering
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Because whatever is bonding the pipe and fixture together is weaker than the integrity of the piping itself.
In just about any mechanical structure, especially between 2 different materials, the union is the weakest point in the system. You get a more consistent molecular distribution when a single piece of something is produced under controlled conditions, which gives a stronger product.
When you have to join that piece to another outside of those controlled conditions, like when 2 pipes are soldered/welded/epoxied(if they are polymer pipes) together, that point of connection has a much higher chance of having uneven distribution of molecular bonds and having impurities interrupting the bonding.
This is a big reason why skilled welders make so much money, that and often hazerdous working conditions. A really skilled welder can set a weld that is practically as strong as the individual pieced of metal it’s joining.
I’ve never seen nuzzles rupture. They tend to dislocate/dislodge at those points because whatever is holding the two together, by design, is weaker than the molecular structure of the pipe itself.
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