Stress Intensity Factor for a Plate with a Crack Stiffened by Partial Stringers

Abstract:

Stress intensity factors are calculated for a cracked plate reinforced locally subject to mode I loading. The stiffeners are considered to have both longitudinal and transverse stiffness. There is no relative displacement between the plate and the stiffener. It is considered that the shear stresses are lumped at a finite number of locations, the result is obtained by summation. The influence of the stiffener location and the stiffener relative stiffness on cracked plate is included. The stress intensity factor depends on all these factors. Case study shows that the shear stress acting parallel to the stiffener gives more effect on the stress intensity factor than the shear stress acting perpendicular to the stiffener. To increase the relative stiffness of stiffener avails to reduce the stress intensity factor of the cracked plate.

• Periodical: Applied Mechanics and Materials (Volumes 184-185)
• Pages: 493-496
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.184-185.493
• Online since: June 2012
• Authors: Ji Yun Mo
• Keywords: Complex Stress Function, Crack, Locally Reinforced, Stress Intensity Factor (SIF)

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