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Crane Part Design: Stress design criteria & Safety factors

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navidMSE

navidMSE

Materials
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Hello Dear all, we want to replace some of the crane parts, and I want to recalculate the Max Capacity of the crane by using Abaqus program and I'm good at abaqus,but I don't know what should be the criteria for max stress on the part, what percentage of the Yield stress should be the max allowable stress, what safety factor should be selected?

Thanks for your considerations
 
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Usually a safety factor of 3 on overhead lifting devices.
 
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FYI... fud-4-Thot...

AWS D14.1 Specification for Welding of Industrial and Mill Cranes and Other Material Handling Equipment

AWS D14.8 Standard Methods for the Avoidance of Cold Cracks

ISO 8686-* Cranes - Design principles for loads and load combinations ...

Regards, Wil Taylor

o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
o Unfortunately, in science what You 'believe' is irrelevant. ["Orion", Homebuiltairplanes.com forum]
 
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Your best measure would be to buy the crane manufacturer's parts instead of making your own parts.
 
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