FINITE-ELEMENT MODEL FOR RESIDUAL-STRESSES AND DEFLECTIONS IN GIRTH-BUTT WELDED PIPES

被引：57

作者：

RYBICKI, EF

SCHMUESER, DW

STONESIFER, RW

GROOM, JJ

MISHLER, HW

机构：

[1] Battelle’s Columbus Laboratories, Columbus, OH

来源：

JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME | 1978年 / 100卷 / 03期

关键词：

D O I：

10.1115/1.3454464

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Computational models for predicting transient temperature distributions, residual stresses, and residual deflections for girth-butt welds are described. Comparisons of predicted and measured temperatures for a two-pass welded pipe show agreement to within 9 percent and 17 percent of the measured values for passes one and two, respectively, the model for predicting residual stresses and residual deflections is based on a finite-element representation recognizing individual passes, temperature dependent elastic-plastic constitutive behavior, elastic unloading for material in the nonlinear stress-strain range, and changes in geometry due to the deformation of each weld pass. Load incrementation and incremental stress-strain relations are also used. Results for a two'pass girth-butt welded pipe show good correlation between residual stresses and residual deflections obtained from the computational model and data obtained from a welded 304 stainless steel pipe. © 1978 by ASME.

引用

页码：256 / 262

页数：7

共 23 条

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