STUDYING THE STRESS-STRAIN CURVE OF C12200 COPPER TUBE USING HYDRAULIC BULGE TEST IN T-SHAPED DIE

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ASHRAFI AMIR; KHALILI KHALIL

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:13 Page(s): 95-106

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Title

STUDYING THE STRESS-STRAIN CURVE OF C12200 COPPER TUBE USING HYDRAULIC BULGE TEST IN T-SHAPED DIE

Author(s)

ASHRAFI AMIR | KHALILI KHALIL | Issue Writer Certificate

Keywords

HYDRAULIC BULGE TESTQ2

TENSILE TESTQ1

T-SHAPE TUBE HYDROFORMINGQ2

FORMING LIMIT DIAGRAMQ2

FINITE ELEMENT SIMULATIONQ2

Abstract

In hydroforming process, applying hydraulic pressure to the inner surface of tube along with axial loads to two ends of tube simultaneously causes the tube to be formed to the die shape. Application of FINITE ELEMENT SIMULATION is a common practice to predict the geometrical dimensions of the produced part and analysis of probable defects. For FINITE ELEMENT SIMULATION, precise mechanical properties of tube material are required. Obtaining these properties from a test similar to the tube hydroforming process is desirable. In this study HYDRAULIC BULGE TEST using T-shape die has been introduced to obtain the stress-strain curve of the tube material. Using hydroforming set-up, several experiments were carried out on C12200 copper alloy samples. Geometrical parameters required to be used in analytical solutions have been identified and the stress-strain curve has been plotted. The results of the proposed experiment have been compared to the results of the TENSILE TEST. In addition, the effects of anisotropy on the obtained stress-strain curve of both tests have been determined. The stress-strain curve obtained has been used to plot the FORMING LIMIT DIAGRAM. The bulge test mechanical properties and the FORMING LIMIT DIAGRAM have been applied to simulate the tube bursting and prediction of the final part of geometrical dimensions in T-SHAPE TUBE HYDROFORMING and these results have been compared to the part being experimentally produced by hydroforming. The results show that when stress-strain curve obtained by the proposed experiment is used, there is good agreement between the simulated hydroformed part and the part being produced experimentally.

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APA: Copy

ASHRAFI, AMIR, & KHALILI, KHALIL. (2015). STUDYING THE STRESS-STRAIN CURVE OF C12200 COPPER TUBE USING HYDRAULIC BULGE TEST IN T-SHAPED DIE. MODARES MECHANICAL ENGINEERING, 14(13), 95-106. SID. https://sid.ir/paper/179722/en

Vancouver: Copy

ASHRAFI AMIR, KHALILI KHALIL. STUDYING THE STRESS-STRAIN CURVE OF C12200 COPPER TUBE USING HYDRAULIC BULGE TEST IN T-SHAPED DIE. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(13):95-106. Available from: https://sid.ir/paper/179722/en

IEEE: Copy

AMIR ASHRAFI, and KHALIL KHALILI, “STUDYING THE STRESS-STRAIN CURVE OF C12200 COPPER TUBE USING HYDRAULIC BULGE TEST IN T-SHAPED DIE,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 13, pp. 95–106, 2015, [Online]. Available: https://sid.ir/paper/179722/en

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