IMPROVED ELEMENT STRESSES FOR NODE AND ELEMENT PATCHES USING SUPERCONVERGENT PATCH RECOVERY

被引：22

作者：

WIBERG, NE

ABDULWAHAB, F

ZIUKAS, S

机构：

[1] Chalmers University of Technology, Department of Structural Mechanics, Göteborg

来源：

COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING | 1995年 / 11卷 / 07期

关键词：

POST PROCESSING; NODE PATCH; ELEMENT PATCH; SUPERCONVERGENCE;

D O I：

10.1002/cnm.1640110708

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Methods to calculate improved postprocessed stresses in elements for the superconvergent patch recovery technique are developed. Based on improved stresses on node patches, the improved element stresses are obtained by using weighting of, patch solutions from different patch assembly points. An alternative method is to directly calculate the element stresses for an element patch based on weighted information. Numerical examples show that the performances of the two procedures are of about the same quality.

引用

页码：619 / 627

页数：9

共 9 条

[1] SUPERCONVERGENT PATCH RECOVERY WITH EQUILIBRIUM AND CONJOINT INTERPOLANT ENHANCEMENTS [J].

BLACKER, T ;

BELYTSCHKO, T .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1994, 37 (03) :517-536

[2] A-POSTERIORI ERROR ESTIMATE BY ELEMENT PATCH POST-PROCESSING, ADAPTIVE ANALYSIS IN ENERGY AND L(2) NORMS [J].

LI, XD ;

WIBERG, NE .

COMPUTERS & STRUCTURES, 1994, 53 (04) :907-919

[3] PATCH RECOVERY BASED ON SUPERCONVERGENT DERIVATIVES AND EQUILIBRIUM [J].

WIBERG, NE ;

ABDULWAHAB, F .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1993, 36 (16) :2703-2724

[4] ENHANCED SUPERCONVERGENT PATCH RECOVERY INCORPORATING EQUILIBRIUM AND BOUNDARY-CONDITIONS [J].

WIBERG, NE ;

ABDULWAHAB, F ;

ZUIKAS, S .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1994, 37 (20) :3417-3440

[5] SUPERCONVERGENT PATCH RECOVERY OF FINITE-ELEMENT SOLUTION AND A-POSTERIORI L2 NORM ERROR ESTIMATE [J].

WIBERG, NE ;

LI, XD .

COMMUNICATIONS IN NUMERICAL METHODS IN ENGINEERING, 1994, 10 (04) :313-320

[6]

WIBERG NE, 1992, NUMERICAL METHODS EN, P25

[7]

Zienkiewicz O. C., 1987, INT J NUMER METH ENG, V24, P333

[8] THE SUPERCONVERGENT PATCH RECOVERY AND A-POSTERIORI ERROR-ESTIMATES .1. THE RECOVERY TECHNIQUE [J].

ZIENKIEWICZ, OC ;

ZHU, JZ .

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING, 1992, 33 (07) :1331-1364

[9]

ZIUKAS S, 1993, 6TH NORD SEM COMP ME

← 1 →