Transactions of Materials and Heat Treatment

Title：Photoelastic analysis of double-layer flat extrusion container

Authors： WANG Mei-qin XU Zai-wen WANG Jiong-hua LIU Quan-kun (School of Civil Engineering Hefei University of Technology Heifei Anhui 230009 China)

Unit：

KeyWords： flat extrusion cylinder extrusion load assembling pressure stress field photoelastisity

ClassificationCode：TG376

year,vol(issue):pagenumber：2005,30(5):51-55

Abstract：

Based on the previously finished photoelastic experiments of flat extrusion integrated cylinder and double-layer cylinder(The models have the same cavity dimension(42×20mm) and maximal diameter(104mm),so they can be compared with each other).Authors analyze and synthesize these experimental data now,and get distribution regularity of extrusion load on the inner wall and stress distribution along the assembling circumference of the double-layer flat extrusion container.Additionally authors use the superposition principle to obtain stress distribution of the double-layer flat extrusion container during extruding.The results indicate that the double-layer flat extrusion container reduces the stress concentration at the ends of the long axis of the cavity more effectually than the integrated container,thus the strength of extrusion load is improved.It can also be adopted for structure design and strength computing of the flat extrusion cylinder.

Funds：

国家自然科学基金资助项目(50075022)

Reference：

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