NDLI: Prediction and Testing (ASTM E-837-89) of Residual Stresses in Structures (Operated in SOHIC Environment) Caused by Welding

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Armand, Sasan Jones, Stan
Copyright Year	2002
Abstract	The study and testing of the structural behavior of a failed pipe with a spiral weld seam was conducted. Our study and testing was part of a larger failure investigation to determine the influence of residual stress for initiation of hydrogen stress cracking. Finite element and structural testing methods were used to guide the study for determination of residual stresses. All properties used in our study were measured per ASTM A-370. The validation of the finite element model of the pipe was conducted against the test results per ASTM E-837-89. The difference in predicted and measured residual stresses was 3% at the ID of the structure. Due to the small differences in the results from analysis and testing, no correlation was required, and the test-validated finite element model was used to predict the total stresses due to the manufacturing processes and operational loads. Based on the validation results, one can conclude that the finite element technique is accurate for predicting residual welding stresses. The finite element technique, however, is far less time -consuming and thus less expensive method than mechanical testing for determining the residual stresses.
Sponsorship	Ocean, Offshore, and Arctic Engineering Division
Starting Page	59
Ending Page	74
Page Count	16
File Format	PDF
ISBN	0791836134
DOI	10.1115/OMAE2002-28094
e-ISBN	0791835995
Volume Number	21st International Conference on Offshore Mechanics and Arctic Engineering, Volume 3
Conference Proceedings	ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering
Language	English
Publisher Date	2002-06-23
Publisher Place	Oslo, Norway
Access Restriction	Subscribed
Subject Keyword	Cracking (materials) Welding Hydrogen Residual stresses Stress Astm international Fracture (process) Finite element model Mechanical testing Finite element analysis Manufacturing Pipes Failure Testing
Content Type	Text
Resource Type	Article

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