I would like to find the appropriate failure criterion for polymer materials. Von Mises is typically the accepted criterion for ductile metals, but for plastics I have read in many cases it is not accurate. The polymers I am most interested in are : ABS, Acrylic, SAS, HDPE, LDPE, and PC. Would...
What is your experience and position on referral fees by an unlicensed design consultant from a PE exempt industry ? The Professional Engineering ethics standards seem pretty clear and prohibit such fees to be received or given by the PE unless they are from a sales or marketing company...
I have PE license and considering doing contract design work in exempt industries. Do I have additional liability concerns as a contractor vs a direct employee in an exempt industry? Does not stamping drawings or documents eliminate the liability as PE?
Some of the product designs will be use...
I am considering a replacement of the OEM Harmonic Crankshaft Damper with a aftermarket damper because of the lower cost. The aftermarket company claims to meet OEM specs, but the aftermarket design is different. The center hub that attaches to the crank has less about 0.5 Kg less mass and a 5...
Hello All,
I am new to designing with glass and I would like to get some input on attachment methods for mass production of a assembly for a consumer product. The preliminary design is a 1/4 metal rod threaded into the center of a 3 inch diameter x 1 inch high glass cylinder. There is a...
I am looking for some info and any pointers on upgrading to Win XP Pro SP2 to SP3 with WF3. I plan to back up all data and follow MS instructions of course, but just wondering if there is anything special I need to do for WF3.
I am looking for some info and any pointers on upgrading to Win XP Pro SP2 to SP3 with SW2008 and up. I plan to back up all data and follow MS instructions of course, but just wondering if there is anything special I need to do for SW.
I need to bring up an old assembly and drawing files done in SW2003 into SW2008. Is there any procedure I should do to prevent problems or corrupting the file?
I have a part with two configurations that I cannot get to activate in
the assembly. Both the default and the new configurations show in
part mode, but only the default part configuration shows in the
assembly tree. If I right click in the feature tree on the part to
access the properties...
The township engineer wants to remove street trees on a residential street that is to be re-paved with asphalt. This seems to be a drastic step and many surrounding municipalities have still kept their old growth street trees. He claims the tree roots are mis-aligning the curbs and...
What would be the acceptable surface roughness for machined end and thread on a tie rod end for passenger vehicle? I have not measured it, but the surface for lock nut face is grooved approx 0.2 mm depth and has surface cracks 0.5 to 1 mm long. The internal threads show radial surface cracks...
Can anyone share their experience with Pro/E Wildfire 3.0 Personal Edition for learning WF? I see the package offers a basic tutorial, so I am guessing additional manuals or courses would be needed for advanced modeling.
What would be a typical allowable error on a residential boundary? The NJ State Board says "this subject matter is not set forth in the Board’s regulations." But is there a typical number or method that is used to determine if there is an error? Do other states specify allowable error?
Thanks
Does anyone know the latest on the EPA Phase 3 and CARB Tier 3 standards for handheld power equipment and if the manufactures are meeting it? I'd like to know if 2 strokes will still be around for small power equip such as trimmers, blowers and chainsaws etc. From what I see CARB Tier 3...
Hi,
Can anyone tell me what the volume tolerance for dispensing motor oil in a typical HDPE oil bottle for the retail consumer? The bottles I am considering come in three sizes 2.6 OZ, 8 OZ and 16 OZ.
I'm just wondering if those of you using non-ECC RAM have any stability problems when using SW. The SW hardware requirements does not mention using ECC RAM, but it was recommend in an SolidMag article from 2005 SW World conference from a SW rep. For a new system I am considering using a...
Anyone have experience with recent (1yr) refurbished HP workstations from HP business group? I'm looking for feedback on the reliability, performance and warranty repairs.
I need to know what UL Standards cover hand operated pumps for dispensing petroleum or flammable liquids. I can't seem to locate this on the web, UL site or document sites. The application is dispensing or transferring from a container a low pressure.
