LONGITUDINAL STRENGTH AND MINIMUM WEIGHT
DAVID TAYLOR MODEL BASIN WASHINGTON DC
Pagination or Media Count:
the danger of brittle fracture and fatigue and the importance of built-in or thermal stresses are discussed, while the calculations are based on a tough material whose yield point is the maximum effective strength under tension and is determined by the plastic buckling strength under compression. The advantages of working beyond the buckling strength are discounted on the basis of the actual plat thickness d the shape of the initial distortions. The corrosion allowance is kept separate from the strength norm and a length-dependent working stress is not used. The longitudinal stresses are base on statistical measurement and calculations with an economy-based risk of damage or need for change of speed and course. The danger of complete structural failure is discussed. As a basis for these observations, measurements from ships are compared with oceanographical data and statistical calculations based on them. The influence on the bending moment of ship motions at sea is discussed.
- Test Facilities, Equipment and Methods