failure modes?
failure modes?
(OP)
there is this contractor who is substituting a standard arm of an excavator to a much longer arm
(lengthened about 50%). he is using this excavator to drive down some steel c sections (size about 150-200 mm) into ground (these piles are like temporary supports for main excavation). he says that the operating condition is that the boom is only acting like a link to obtain deeper reach, and driving mechanism is attached in place of the bucket.
my question is that what can be possible failure modes of the excavator boom other than buckling? is there a need for a detailed fea analysis to ensure the structural adequacy of the boom?
have any one of you ever experienced failure of an excavator boom??
(lengthened about 50%). he is using this excavator to drive down some steel c sections (size about 150-200 mm) into ground (these piles are like temporary supports for main excavation). he says that the operating condition is that the boom is only acting like a link to obtain deeper reach, and driving mechanism is attached in place of the bucket.
my question is that what can be possible failure modes of the excavator boom other than buckling? is there a need for a detailed fea analysis to ensure the structural adequacy of the boom?
have any one of you ever experienced failure of an excavator boom??






RE: failure modes?
I would not see this as something requiring FEA.
RE: failure modes?
corus
RE: failure modes?
RE: failure modes?
RE: failure modes?
we are worrying as we r responsible for submitting calcultions for this modification work and certify so tht the owner is worryfree :)
RE: failure modes?
Perhaps the OP is an engineer working for the excavator manufacturer.