Basically I'm trying to recall school statics to find how many plies do I need. Here are my thoughts, please correct me if I'm wrong.
Let's take an I-beam. Let's say I know bending moment and shear force distribution with all Gs and margins taken into account and took their peaks. For beam flanges it's quite simple:
For the shear web it's a different story. I have a shear web made of fibre strands laid at 45º. Encapsulated in resin they form a sort of rigid truss mesh. I suppose I have to project the shear force onto this line first so:
But I need a pressure again and I'm stuck trying to figure out what area I have to take. Intuitively it must be the area perpendicular to this line:
, where d is the total thickness of plies laid *in one direction*, so
, one direction again.
Am I missing something?
Let's take an I-beam. Let's say I know bending moment and shear force distribution with all Gs and margins taken into account and took their peaks. For beam flanges it's quite simple:
For the shear web it's a different story. I have a shear web made of fibre strands laid at 45º. Encapsulated in resin they form a sort of rigid truss mesh. I suppose I have to project the shear force onto this line first so:
But I need a pressure again and I'm stuck trying to figure out what area I have to take. Intuitively it must be the area perpendicular to this line:
, where d is the total thickness of plies laid *in one direction*, so, one direction again.Am I missing something?
