Hello, I can't attach a picture, so I'll try my best to give a good description.
We have an assembly block of 140kg of which the C of G is pretty much the centre of the block. The block sits on top of 4 AV mounts (one in each corner). 2 AV mounts attach the top rear face of the block to the wall - i.e. 90 degrees to the 4 blocks at the base - again, one in each top corner. The AV mounts attach through the centre with 1x M10 bolt. The AV mount attaches to the framework with 4x M6 bolts.
The block undergoes a 30g shock from below. This shock would put the 16 M6 bolts of the base mounts in tensile strain, whilst the 8 M6 bolts at the two top mounts would be in total shear.
At the moment the 1.6 Thick base plates of the AV mounts are fracturing at the corners of the M6 holes.
I'm trying to determine the stresses in these areas of the brackets so I can determine the required thickness, but I'm not sure how to determine the exact force in each corner of each bracket.
I hope you can understand my question and look forward to your responses......
Lee
We have an assembly block of 140kg of which the C of G is pretty much the centre of the block. The block sits on top of 4 AV mounts (one in each corner). 2 AV mounts attach the top rear face of the block to the wall - i.e. 90 degrees to the 4 blocks at the base - again, one in each top corner. The AV mounts attach through the centre with 1x M10 bolt. The AV mount attaches to the framework with 4x M6 bolts.
The block undergoes a 30g shock from below. This shock would put the 16 M6 bolts of the base mounts in tensile strain, whilst the 8 M6 bolts at the two top mounts would be in total shear.
At the moment the 1.6 Thick base plates of the AV mounts are fracturing at the corners of the M6 holes.
I'm trying to determine the stresses in these areas of the brackets so I can determine the required thickness, but I'm not sure how to determine the exact force in each corner of each bracket.
I hope you can understand my question and look forward to your responses......
Lee