Pull-back and snapped rod

[Paul Arden]

Hi folks,

I had an interesting comment from a Sexyloops YouTuber who said that he had (at some point in the past hopefully!) had a cane rod snap during pull-back. I have a cane rod which doesn’t snap with pull-back.

What are your thoughts, is this potentially a damaged rod or just that the design didn’t like it?

I imagine the physics to be a whip-wave being chased out of the rod, from butt to tip. This will I think put additional stress on the tip section?

Cheers, Paul

[George C]

Same physics?

[alanj]

Obviously rounders requires a stopless hit rather than pullback.

[Bernd Ziesche]

Where did it break, Paul?

[Paul Arden]

I think this backward movement was too abrupt for my old bamboo. The upper knee broke right at the connecting sleeve.

[Bernd Ziesche]

Connection sleeve of course is a critical point...
Usually a Bamboo rod shouldn't break castingwise. But I just got 2 modern graphite rods back, which broke casting wise. I assume sometimes there can be rods having a weak point in the material and then break, if the movement meets exactly that point in a peak force. Same for all materials.

[Paul Arden]

I was looking for something a bit more technical than that. Specifically I was wondering if the second frequency that pull back creates, combined with the additional mass of the cane rod, created a more potentially explosive situation.

I was thinking about experimenting with some spaghetti but that means opening a new packet, which is a bad idea here in the tropics, unless you plan to cook it all!

I was given a cane rod in China that I’m happy to play with. It does come with a spare tip

Cheers, Paul

[VGB]

I think Bernd is right. Is the term “stress raiser” technical enough?