pressures due to vacuum bag
pressures due to vacuum bag
(OP)
Hi,
firstly, i've never used cosmos so please bear with me...
I'm looking to simulate a glass laminate being placed inside a vacuum bag, and being de-aired under vacuum.
so far i've modelled the glass laminate.
How would you guys go about modelling the bag and simulating a vaccum inside that bag on sworks/cosmos?
Is it actually possible, as a person on another forum suggested it isn't?
it's quite frustrating as I don't want to waste my time trying to do something if its not actually possible :s
Thanks
James
firstly, i've never used cosmos so please bear with me...
I'm looking to simulate a glass laminate being placed inside a vacuum bag, and being de-aired under vacuum.
so far i've modelled the glass laminate.
How would you guys go about modelling the bag and simulating a vaccum inside that bag on sworks/cosmos?
Is it actually possible, as a person on another forum suggested it isn't?
it's quite frustrating as I don't want to waste my time trying to do something if its not actually possible :s
Thanks
James






RE: pressures due to vacuum bag
RE: pressures due to vacuum bag
RE: pressures due to vacuum bag
In reality, the bag will put other stresses/loads onto the part due to a 3d volume being inside of a bag that cannot truly conform to the object, will this effect be large enough to consider? Its possible if its a small laminate.
Is the part just laid into a bag? or is it fixtured to a table and a layer of plastic sheet sucked down on it? These all affect how you'll restrain it. If its just stuck in a bag and put under vac, it could be tricky, if fixtured to a table, and then force is applied against an underlying mandrel or mold, it could be easier.