Hollow members are more efficient than solid with equal area
Gastropoda is the molluscan class that includes members that undergo embryonic torsion. Torsion is a unique process in which the visceral mass of the developing mollusk rotates 180 degrees, bringing the anus above the head. This characteristic is a defining feature of the Gastropoda class.
Torsion
The way I understand it is that the shear center is the point of a cross-section, where loads can be applied without causing torsion over the longitudinal axis (normal to the cross-sectional plane).
The torsion in the bridge's cables helped support its weight during high winds.
Vehicle does not have torsion bars
Instead of using coil springs on the front suspension torsion bars are used from the lower control arms to the frame ( my 1995 Ford Explorer 4x4 has torsion bars , my dads 73 Dodge Coronet had torsion bars ) If you look at a lower front suspension that has torsion bars you will see the torsion bars going from the lower control arms rearward
Spraining your ankle is typically caused by a torsion force, which is a twisting force that causes the ligaments in the ankle to stretch or tear.
I'm pretty sure that only 4WD trucks have torsion bars.
A Dodge Ram does not have torsion bars.
The tundra does not have torsion bars, buy a lift.
A 2WD Tahoe does not have torsion adjustment bolts, it uses front coil springs and not torsion bars.
The 1st generation Nissan Pathfinder, 1987 - 1995 had a torsion bar suspension on the front end of the vehicle. There is a driver's side and passenger's side torsion bar and they are not interchangeable. 1996 - 2009 models do not use a torsion bar.