Avoid transferring force through the thickness of steel
Sep 1, 2004, Omer W. BlodgettOmer W. Blodgett, Sc.D., P.E. Lifting deviceA steel casting was one of two parts that made up a material-handling system used to lift coils of steel....
Ensure successful technology transfer
Aug 1, 2004, Omer W. BlodgettOmer W. Blodgett, Sc.D., P.E. Take the example of a fabricator making presses. The frame of the press consists of a beam made from a rolled wide flange...
Recognizing torsion
Jun 1, 2004, Omer W. BlodgettOmer W. Blodgett, Sc.D., P.E. The tongue-assembly design for a large truck trailer failed to consider the resulting torsional loading. Torsion transferred...
Don't Put Welds in Bending
May 1, 2004, Omer W. BlodgettOmer W. Blodgett, Sc.D., P.E. Above, Figure 1 a and b. Below, Figure 2. Top left, Figure 3; top right, Figure 4; above left, Figure 5; above right, Figure...
No Secondary Members!
Apr 1, 2004, Omer W. BlodgettOmer W. Blodgett, Sc.D., P.E. Figure 1. When random lengths of rod were butted and when intermittent welds joined the rods to the box, as well as to each...
Welder Skill No Substitute for Good Design
Mar 1, 2004, Omer W. BlodgettOmer W. Blodgett, Sc.D., P.E. The welded detail looks good on paper, but the engineer isn t quite sure: will the welder have enough access to make the...
Example: Welding a Bracket to a Railroad Car
Feb 1, 2004Figure 3 A bracket designed to carry a 500 lb [227 kg] air compressor unit was welded to the center sill of a piggy back railroad car, as shown in Figure...
