LAMELLAR TEARING OF WELDED CONNECTIONS

Lamellar tearing of steel is the separation in the parent or base material caused by through-thickness strains induced by shrinkage of weld metal. It is most frequently associated with large groove welds that are generally required with thick material, but if the weld size or restraint condition is sufficient, it can also occur in this material. A report prepared by a task force of the American Institute of Steel Construction emphasize that information on the subject is incomplete and points out that the restraint that is of concern is internal restraint (within a connection made up of several joints) that inhibts the small total (but large unit) localized strains resulting from weld shrinkage. The report makes recommendations, but cautions that these are not "specific".

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Filing Info

  • Accession Number: 00264590
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jan 29 1975 12:00AM