June 14, 2015
June 14, 2015
June 17, 2015
26.1065.1 - 26.1065.21
Learning Experience in Designing a Hydraulic Bulge Test Setup for Material Properties CharacterizationTensile test has been widely used in both industry and academia for material propertiescharacterization despite its shortcoming in non-uniform plastic deformation zone due to neckingphenomena. While tensile testing delivers acceptable results for most applications, more accuratecharacterization is desired for metal forming processes in which plastic deformation plays acrucial rule. As an alternative, hydraulic bulge test can be utilized to characterize materialsproperties without necking effects. In a bulge test, a flat sheet metal specimen is deformed bypressurized water into a cylindrical die in a shape of a spherical bulge. The objective of thisproject is to provide learning experience to a team of students to design a bulge test set up in asenior design project framework. With pre-defined sets of educational objectives, the project isdefined for the students. The design requirements and design constraints are articulated at thestart of the project. Advance High Strength Steels (AHSS) particularly TRIPs are targeted as thematerial of interests for design purposes. Students have learned about fundamentals of plasticityand forming simulation with ABAQUS to calculate the pressure needed to conduct a successfulbulge test on the material of interest. Students have used fundamentals of mechanics of materialsand FEM simulation to design the bulge test setup for the calculated pressure. Pressure andposition sensors are considered in the setup to estimate the level of stress and strain, respectively,at different stages of plastic deformation for material properties characterization. The authorspresent how fundamentals of engineering are utilized throughout the course of the project. Thelearning outcomes of the project are also discussed in the paper.
Jaia, M. S., & Matin, P. (2015, June), Learning Experience in Designing a Hydraulic Bulge Test Setup for Material Properties Characterization Paper presented at 2015 ASEE Annual Conference & Exposition, Seattle, Washington. 10.18260/p.24402
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