Hello Again
Note that most all Mack Trucks use 120KSI steel in the Truck Frames. Automakers use Ultra HSS quite a bit. Since this use is seen in eveyday use, like with buildings, you would think the Steel Manual would address a allowable stress for it. 80KSI ASTM A-656 is used in steel crane...
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Looking for a site or other data base with typical ENG hours used to develop various Mechanical prototypes, Machines, mobile equipment or Bridges or other. I am sure this data is often recorded. Is it available anywhere?
I found two sites that give data for car development. Anywhere from...
Been awhile since I used LRFD. A design "based on statistical analysis of probability of failure". Upon rereading I have several simple questions that I do not see readily in the searches. Pls respond if you know or have time. Thanks
1) It seems that this design should not be used for machines...
Been awhile since I used LRFD. A design "based on statistical analysis of probability of failure". Upon rereading I have several simple questions that I do not see readily in the searches. Pls respond if you know or have time. Thanks
1) It seems that this design should not be used for machines...
Hello
Anyone know how accurate the Inventor Nastran program is in predicting local buckling. The AISC (and other)guidlines on b/t ratios and reduced allowable stressses would be the first trial. But as the below thread notes local buckling is almost always underestimated by a large margin (per...
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Has anybody bought from this site.
I do not believe it can be legit, but the site has been there 2 years. Last chance to get a perenial license!
https://www.bestsoftstore.com/shop.php?productsearch=Inventor
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Consider a 20 ft long box beam with 4 Cars (or linear slides) on one end spaced at about 62". So the beam can travel a certain distance. Assume the two most loaded cars take 25,000LB reaction load for each car. The other two cars would be somewhat less.
You could use something similiar...
Hello.
By the Alum Design Manual the allowable bend stress is (1.17x yield)/Ny= 1.17x35)/1.65=24.8KSI. Ref eqaution 6-2 and table 6-3. There are other equations but this governs bending.
For Stainless Steel 304L by the ASCE by ASD (Allowable stress Design) the allowable stress is:
Stainless...
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Any codes cover this? My older AISC book has some exclusions concerning Ultra HSS. Looks like the new AISC book is limited to 70KSI yield.
Any links or downloads for allowables for 80 too 100KSI yield Ultra HSS?
Thanks.
Hello ... Does anyone know of a chart or link that gives the above for countersunk screws in single shear (as compared to hex heads)? When a CSK screw is in single shear the loads on the CSK angled faces induces moments that can rotate the head out of the countersunk hole. I have seen this...
