Is there such a thing using basic soil properties? I work with a lot of contractors and would like to be able to do a quick calculation to determine the factor of safety of a slope...in addition to what OSHA recommends for soil type. As this is all contractors generally use.
I'm trying to make a retractable cord system using a clock spring (kind of a hobby/home project). I am looking for a pull of 10lbs and about 20' of release. I want to keep it fairly small, say under 4" diameter...so about 19 turns.?.? Can anyone help me get started with how to determine...
Here are the chemical tests of some more samples. The strengths came out better on these tests but still lower than expected.http://files.engineering.com/getfile.aspx?folder=da295f04-6f80-459b-8b9a-a7b84ca09f52&file=Chemical_Tests.pdf
Redpicker, thanks for the feedback. Attached is the test results, maybe these will help.http://files.engineering.com/getfile.aspx?folder=bf66b40f-4eff-4f32-b6a7-82ddc97519e3&file=Test_Results.pdf
I had some samples of steel pipe tested. The pipe was supposed to be A53 (Grade B). The yield and tensil came out better than required (on all except for one) but the Modulus of Elasticity for each sample were 24,000ksi, 21,000ksi, 27,000ksi and 14,000ksi...all below what I would expect for...
Thank you for your response. Just to give you the parameters:
kl/r = 150 (h = 78', 18" pipe w 3/8" wall r = 6.23in). Using Eulers with a factor of safety of 2.12 (per AASHTO) I get Fa = 6ksi. I have also considered combined axial and bending for an out of plumb tolerence of 1". So am still...
We have salvaged some pipe to be used for temporary falsework. The pipe is good and straight (for the most part) and has no defects. We were told it was A53 Grade B, but a tensil test has revealed that it may actually be A53 Grade A (or similar to A252 Grade 1). The unbraced length of the...
