Can ASTM A53 or A106 pipe be used in accordance with CSA s16?
CSA S16 calls out for structural material to be either CSA G40.20/21 or ASTM A992. I find it hard to believe that ASTM pipe isn't used regularly for stanchion and similar applications in the oil & gas industry. Any ideas? Am I off...
When using Section VIII-2 Part 5 elastic-plastic analysis (with a load factor of b=3.5 for protection against plastic collapse; and 1.7 for protection against local failure) on a vessel (or component of a vessel) that is designed per VIII-1 (and U-2(g)), is it a generally accepted engineering...
I'm curious about the theory behind the impact testing exemptions permitted in VIII-1. Specifically:
1. Why are thin plates exempt to lower temperatures than thick plates?
2. Why is the effective thickness of plate stress in bending one-quarter of the actual thickness when determining the...
Would anyone be willing to post your elastic-plastic stress-strain data points (per Annex 3-D) for a material such as SA-516 so that I can compare it to my MathCAD results?
thanks
I'd like to analyze the stresses when the edge conditions on the outside perimeter are fixed. Roark's only provides a solution when the outside perimeter is free. Any thoughts?
Hi,
I'm looking for a source used in Roark's 7th edition (section 11.15 reference 10):
Wahl, A.M., 1932, “Strength of Semicircular Plates and Rings Under Uniform External Pressure”, Trans. ASME, Vol. 54, pp. 311-320
as a bonus, this one would be useful as well:
Wahl, A.M., 1930, “Stess and...
How would you estimate the local stresses caused by the hoop on the shell without using FEA?http://files.engineering.com/getfile.aspx?folder=b368acf6-a698-4809-a15a-df744fc790f2&file=2016-08-03_13-11-34.png
Does the transverse intermediate stiffener shown in this pic increase the shear resistance? If so, how? This seems counter-intuitive to me (blame my mechanical background if you wish).
Any word on when the 11th edition of the CISC Handbook of Steel Construction is going to be released? I don't want to spend the money on CSA S16-14 if it's going to be part of the handbook.
I've just downloaded Section II and Section VIII-1 pdf copies. We get our subscription through IHS. The table of contents of these files cannot be clicked to take you directly to the page/paragraph you're looking for. This worked fine in the 2013 editions. This is rather frustrating. Do any of...
Most of the stuff I design needs to use ASME BPVC Section II materials. This makes is somewhat easy to choose materials.
How would I go about selecting a material specification for a tool such as an arbor (example shown at the end of this post)?
When I research the materials available I seem...
I took a course a while ago and the instructor mentioned a wire-feed process that was suitable for high input with relatively small equipment. The wire core had a composition that allowed for this (metalcore? powder metal?) I can't quite recall the name. As far as I can tell it's not FCAW-S, but...
Hi,
Can anyone point me to references to determine the erosion rate of steel that is being blasted by a fluid spray. I'm trying to determine how thick to make a plate that will be used to contain a leak emanating from a high temp/high pressure source. I'm trying to solve a problem such as: if a...
Hi, I'm a mechanical engineer, but every now and then I'm tasked with something that's more structural in nature. I've trying to figure what kind of factors of safety are used in structural designs, and I'd like to double check what I've found with some of you. According to ANSI/AISC 360-10...
I've recently specified some 1.25" SA-574 (Gr. 4037, 4042, 5137M, 51B37M, 4140, OR 4340) socket head screws for a project that needs to meet Sec. VIII-1. According to Figure UHT-6.1, the bolting must meet 15 mils of lateral expansion. This is inline with Interpretation VIII-1-10-20.
My supplier...
