A Study on the Wedge Cutting Force through Longitudinally Stiffened Plates: An Application to Grounding Resistance of Single and Double Hull Ships
Abstract
This paper studies the cutting by a wedge of longitudinally stiffened plates for application to the grounding resistance of single hull and double hull ships. Two types of ship hull designs were used as prototypes for the development of small scale models: a conventional longitudinally stiffened Single Hull (SH) and the Unidirectionally Stiffened Double Hull (USDH) design. To model the cutting experiments, the complex deformation patterns observed in the damaged specimens were simplified to obtain a closed-form upper bound for the steady-state cutting force required for the USDH specimen. An existing closed-form upper bound solution, developed by Wierzbicki and Thomas, for the wedge cutting initiation force of a single plate was applied to the longitudinally stiffened single hull specimens by smearing the geometry to obtain an equivalent thickness single plate. A total of eleven cutting experiments were conducted using six different wedge geometries.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1994
- Accession Number
- ADA283808
Entities
People
- Mark D. Bracco
Organizations
- Massachusetts Institute of Technology