Hi,
I'm looking for recommendations for a good book on stress analysis of plastics. Analysis of plastics is a new field to me so I'm interested in analysis methods and failure criteria. Basically, how to go about analyzing a plastic part for structural adequacy. Calculating stress is not an...
Is evaluation for pressure fatigue necessary for B31.3 piping in "normal" service? I've been looking through the Code and pressure fatigue seems to mainly be a concern for high-pressure piping (defined as P/SE > .385) and/or piping with "thick" walls.
I could just go ahead and calculate...
Hi,
I have a question on mode interaction. There is a several thousand pound vertical vessel attached to a skid which is secured to the floor. Attached to the vessel are several piping assemblies. The piping assemblies weigh quite a bit less than the vessel. The first few modes of the system...
Hi,
I have a question on response spectra. I have attached a figure showing an arbitrary response spectrum. Assume that my component's first mode is at the vertical red line. If I assume that all the mass is participating in that mode, and apply the acceleration (in my Nastran model) shown by...
I need to analyze some skid-mounted equipment for earthquake. The skid is bolted to the floor of a building. Would this be considered a "nonstructural component" in ASCE 7-05?
Thanks
Hi,
I would like to get some clarification on the static coefficient method in IEEE-344. I've read the standard, and it explains that the static coefficient method is a simpler, more conservative method than a dynamic analysis such as response spectrum analysis. It also says that for...
