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Evaluation of the capacity of welded attachments to elbows as compared to the methodology of ASME Code Case N-318

Conference ·
OSTI ID:5667676
 [1];  [2];  [3]
  1. Westinghouse Savannah River Co., Aiken, SC (United States)
  2. Wais and Associates, Inc., Atlanta, GA (United States)
  3. Rodabaugh (E.C.) and Associates, Hilliard, OH (United States)
+ Show Author Affiliations

This paper presents the results of a series of tests conducted to assess the capacity of various configurations of integral welded attachments. These tests are unique in that the attachments are welded to the outer radius of pipe elbows. The lug configurations tested include both rectangular and cross (cruciform) shapes. Both limit load and fatigue tests are performed on the lug-elbow configurations. The results of the limit load tests are presented as limit moments. The results of the fatigue tests are cycles-to-failure. Markl's equation is then used, with the fatigue results, to determine stress intensification factors. The limit moments and stress intensification factors are then compared to those developed using the methodology of ASME Code Case N-318. The level of conservatism in the Code Case methodology is then compared to the test results.

Research Organization:
Westinghouse Savannah River Co., Aiken, SC (United States)
Sponsoring Organization:
DOE; USDOE, Washington, DC (United States)
DOE Contract Number:
AC09-89SR18035
OSTI ID:
5667676
Report Number(s):
WSRC-MS-91-420; CONF-920631--13; ON: DE92009408
Country of Publication:
United States
Language:
English

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Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
42 ENGINEERING
420500 -- Engineering-- Materials Testing
ALLOYS
CARBON STEELS
CRACK PROPAGATION
ENERGY TRANSFER
EVALUATION
FATIGUE
FLUID MECHANICS
HEAT TRANSFER
HYDRAULICS
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MATERIALS TESTING
MECHANICAL PROPERTIES
MECHANICAL TESTS
MECHANICS
PIPES
STANDARDS
STEELS
STRESSES
TESTING
WELDED JOINTS