CAUSES OF CLEAVAGE FRACTURE IN SHIP PLATE: HATCH CORNER TESTS.
Abstract
Six full scale specimens, similar in design to a hatch corner of a ship, were constructed from a low carbon, ship quality, semi-killed steel and tested to failure. One tested at 120 F gave a shear type fracture. All others tested at room temperature failed with cleavage type fractures. Two which were welded with preheat at 400 F showed superior performance, both in strength and energy absorption. Two which were fabricated by riveting gave inferior performance. An investigation was conducted to determine the effects of preheat and a comparison made with the effects of 1000 F postheat treatment for 8 hours. Studies were made of quarter scale symmetrical and asymmetrical hatch corner models to determine which type of specimen would best duplicate the stress condition existing in actual ships. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 24, 1946
- Accession Number
- AD0636741
Entities
People
- E. Paul Degarmo
- J. L. Meriam
- J. W. Harman
- R. C. Grassi
Organizations
- University of California, Berkeley