EH36 steel for shipbuilding - fracture documentation for CTOD test (plate thicnkness 40mm), a0/W = 0.5 - Open Research Data - Bridge of Knowledge

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EH36 steel for shipbuilding - fracture documentation for CTOD test (plate thicnkness 40mm), a0/W = 0.5

Description

The basic method of ductility designation of structural steels is the Charpy impact test. The test consists of a single strike of the specimen using a Charpy pendulum. Its result is the value of work necessary to break a specimen at a test temperature. Despite its many advantages, such as its short implementation time and low costs, it has its disadvantages, in particular:

• strong influence of notch geometry on the test result, which means that impact strength cannot be considered as an unambiguous material property,

• milled notches are not repeatable because the cutter wears,

• regardless of the thickness of the material being tested, samples of the same size are used.

Due to these disadvantages, for very responsible ship and ocean engineering constructions, such as: continuous longitudinal coamings of the largest container ships, or supporting components of drilling platforms, tests are carried out basing on fracture mechanics. For shipbuilding industry, CTOD (Crack Tip Opening Displacement) is, the most often, desired value. The test CTOD is performed by slowly bending the specimen with record of the slit opening. Before performing the test, it is necessary to know the material properties (from a tensile test). The final stage of the test is the measurement of the initial fatigue fracture geometry.

The dataset contains the photographic documentation of fracture and measurement of fatigue precrack for a0/W = 0.50 specimen.

Dataset file

W80-a0W-05.zip
207.6 kB, S3 ETag 460c0b08a0e268f672f3b0f898986471-1, downloads: 27
The file hash is calculated from the formula
hexmd5(md5(part1)+md5(part2)+...)-{parts_count} where a single part of the file is 512 MB in size.

Example script for calculation:
https://github.com/antespi/s3md5
download file W80-a0W-05.zip

File details

License:
Creative Commons: by-nc 4.0 open in new tab
CC BY-NC
Non-commercial

Details

Year of publication:
2021
Verification date:
2021-03-22
Dataset language:
English
Fields of science:
  • Mechanical engineering (Engineering and Technology)
DOI:
DOI ID 10.34808/5tgt-vx35 open in new tab
Series:
Verified by:
Gdańsk University of Technology

Keywords

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