24,000 load in direction of CG

The analysis runs in the following slides are based on a W8 x 58.0 wide beam with dimensions shown bellow.

24,000 load in direction of CG

Original design of cantilever beam section

Peak stress 85 ksi (see next sheet)

Peak stress 21 ksi

24,000 load in direction of CG

Cantilever beam section changed

Peak stress:

24,000 load in direction of CG

Adding local web increased the peak stress and moved its location as shown.

21.25 ksi (single pass)

Peak stress 19.5 ksi (single pass)

24,000 load in direction of CG

Peak stress:

21.25 ksi (single pass)

18.64 ksi (multi pass)

24,000 load in direction of CG

See next sheet for deflected shape

24,000 load normal to beam

Peak stress:

37.4 ksi (single pass)

24,000 load normal to beam

Peak stress:

36.0 ksi (single pass)

33.1 ksi (multi pass)

24,000 load normal to beam

Extended local rib

The analysis runs in the following slides are based on a W8 x 67.0 wide beam with dimensions shown bellow.

Peak stress:

24.7 ksi (single pass)

xxx ksi (multi pass)

15,600 vertical load at each lift point

11.8 ksi

24.7 ksi

9.5 ksi

13.6 ksi

Peak stress:

15,600 vertical load at each lift point

22.9 ksi (multi pass)

22.9 ksi peak stress is located in the bolt

area

Deflected shape with 15,600 vertical load at each lift point

18,000 lb vertical load at inner lift point

Peak stress is 22.9 ksi (multi pass)

Bolt stresses:

20.0 ksi14.4 ksi17.3 ksi14.4 ksi

Peak stress is 21 ksi (multi pass with bolt supperts)

Full left side, position 247 lift support

Full left side, position 247 lift support

Peak stress is 16.7 ksi (multi pass with full pad constraints)

Full left side, position 247 lift support

Peak stress is 20 ksi (multi pass with full pad constraints)

Removed local ribs on inside

Full left side, position 247 lift supportPeak stress is 20 ksi (multi pass with full pad

constraints)

Removed local ribs on inside

Full left side, position 247 lift support

Peak deflection: .003” (multi pass with full pad constraints)

Removed local ribs on inside

18,000 lb load at inner lift point only

Multi-pass run