A GENERALIZED UPPER BOUND SOLUTION FOR EXTRUSION OF BI-METALLIC RECTANGULAR CROSS-SECTION BARS THROUGH DIES OF ANY SHAPE

被引：0

作者：

Haghighat, Heshmatollah ^{[1
]}

Amjadian, Parvaneh ^{[1
]}

机构：

[1] Razi Univ, Dept Mech Engn, Kermanshah, Iran

来源：

JOURNAL OF THEORETICAL AND APPLIED MECHANICS | 2013年 / 51卷 / 01期

关键词：

extrusion; bimetal; plane strain; upper bound method; FEM; COMPOSITE; DEFORMATION; BILLETS; TUBES;

D O I：

暂无

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, a generalized upper bound solution is developed for extrusion of bi-metallic rectangular cross-section bars through dies of any shape. The internal, shearing and frictional power terms are derived and they are used in the upper bound model. By using the developed upper bound model, the extrusion pressures for two types of die shapes, an optimum wedge shaped die as a linear die profile and an optimum streamlined die shape as a curved die profile, are determined. The corresponding results for those two die shapes are also determined by using the finite element code and compared with the upper bound results. These comparisons show a good agreement.

引用

页码：105 / 116

页数：12

共 27 条

[1] A generalized upper bound solution for extrusion of bi-metallic rectangular cross-section bars through dies of any shape
Uogolnione rozwiĄzanie ograniczenia gornego problemu wytllaczania bimetalowych belek o przekroju prostokĄtnym za pomocĄ tllocznikow o dowolnym ksztallcie
Haghighat, H. (hhaghighat@razi.ac.ir), 1600, Polish Society of Theoretical and Allied Mechanics (51):
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[3] Upper bound analysis of extrusion of I-section bars from square/rectangular billets through square dies
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[10] Generalized thermo-elastic waves propagating in bars with a rectangular cross-section
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