HDPE Shear Strength

jimbo2 · Jan 28, 2003

I am working on a design for a telescoping manhole system that relies on shear failure of High Density Polyethylene pins. Can anyone tell me what the shear strength of HDPE is, or where I can find this information?

TheAnswerGuy · Jan 28, 2003

Jimbo2,

I can not find any data on shear strength.
I also called my Tech Rep and they had no data either.

My suggestion is that you get a piece of HDPE rod and design your own experiment. In that respect, you could validate your design.

Ag93 · Jan 30, 2003

Found a listing of Shear Strength here for HDPE :

http://www.interstateplastics.com/products/spec/hdpe.htm.

The Shear strength number is a short term property. As you know, these properties are time, temperature and load dependent. You may want to apply a conservative approach to avoid a creep failure.

I'm pro HDPE (we manufacturer HDPE pipe and fittings) but why HDPE for the pins?

Good luck.

yori · Aug 3, 2003

note that shear strength is influenced by orientation. transverse to orientation will have higher shear strength.

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HDPE Shear Strength

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