Recent content by Skyhawk989

thanks for all the replies. I will analyze the rim within the FEA since it looks like its not covered by the standard. Best to be safe than sorry.

Hi, i am analyzing a gear using FEA methods to assess the strength capability of various regions except for tooth bending which is analyzed using AGMA standards. My question: If the the FEA shows high stresses below the gear tooth does this area need to be assessed considering the rim thickness...

thanks that clears things up abit because I have since seen "round bar" before...however, what defines a plate then? I assumse its different from a "square bar" that you described above?

Hi, In regards to the product forms, what is a bar? when looking at some fatigue curves in MMPDS, its states Bar 2 x 6 in. Seems to imply its similar to a plate? or should it be a rod...ie. diam. x length? thanks

Hello, When I perform a non-linear material analysis in workbench, only the equivalent plastic strain can be plotted. How can I see the max. principal plastic strain? Can equivalent plastic strain be compared to ultimate rupture strain? SK

I dont have ASTM A 493, is there a copy I can get online? dimjim, I already spoke to manufacturer, they had nothing.

israelkk, can you advise me as to how these NAS 1351 (CRES) bolts are manufactured? would they be annealed, then cold worked? spec doesnt call out any heat treatmeant also... SK

i want the dsdb to be saved. hmm...how can i run workbench in batch mode? thanks.

Hi the question is to have WB save AUTOMATICALLY once job is finished, ie. without me being at the computer and clicking on save. SH

Thanks, israelkk. However, thats the first thing I did. I looked at FF-S-86, which references 300 series as material callout with Ftu_min = 80 ksi. I could alternatively generate a fatigue curve based on existing literature but I wondered if there actual test data available.

bolt spec is NAS1351C

Hi, Is there a way to automatically have WB save simulation results once the simulation has completed? SH

thanks, the bolt is cold headed, threads are rolled. However, this relates to the threaded portion of the bolt for fatigue strength. I am more interested in the bolt head fillet. SH

Hello, I have two questions: I have a bolt made out of CRES material (type 302), can anyone direct me to where I can find fatigue data for such a bolt material. MMPDS does not have and the aerospace materials handbook isnt much help. thanks in advance SH

Hello, My questions: 1) i have read agma 2OO1 c95 and find the geometry factors somewhat confusing. Difficult to analyze without a computer program or well defined gear tooth profile. Would it be safe to assume that the previous standard agma 218 would still be acceptable? why did they...