PERMISSIBLE STRESSES AND THEIR LIMITATIONS

Various aspects of capability and demand of ships such as extreme loads, cyclic loads, plastic design, crack design, collapse and damage are discussed in an attempt to make a synthesis. It is explained that whenever permissible stresses are used in structural design, they should be bounded by probability-concepts, deformation criteria and critical crack lengths. For an acceptable risk factor, the margin between capability and demand seems to be substantial in ships. Yet drastic reductions in structural weight will only be possible if the principle of fail safe design is adopted in shipbuilding to the same extent as in aeroplane-building.

• Corporate Authors:

  Delft University of Technology

  Ship Structures Laboratory
  Delft,   Netherlands 
• Authors:
  • Nibbering, JJW
• Publication Date: 1970

Media Info

• Features: Figures; References;
• Pagination: 15 p.

Subject/Index Terms

• TRT Terms: Loads; Longitudinal cracking; Repeated loads; Structural analysis; Structural design; Tension tests
• Identifier Terms: Ship Structure Committee
• Uncontrolled Terms: Crack length
• Old TRIS Terms: Tensile test
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00010319
• Record Type: Publication
• Report/Paper Numbers: SSC-206
• Files: TRIS
• Created Date: Mar 23 1973 12:00AM