Abstract
Biaxial mechanical testing gained increased importance for characterization of materials that present anisotropic behavior and/or different responses when subjected to tensile and compression loadings. In this work, a new biaxial testing machine was developed. The various systems and components were designed, manufactured, assembled, and assessed. Uniaxial tensile tests were performed to validate the device, showing results consistent with those obtained on a universal testing machine. Finally, biaxial tensile tests were also performed on polypropylene cruciform specimens. The results revealed high precision levels, thus showing the potential of this new machine.
Highlights
In a highly competitive industry, it is essential to always be one step ahead of competition.there is an enormous need to develop profitable products
The most common way to characterize a material is through uniaxial tests [2]
This section describes the mechanical, electrical, and control systems developed for the new biaxial testing machine
Summary
In a highly competitive industry, it is essential to always be one step ahead of competition.there is an enormous need to develop profitable products. The deep knowledge about a material is necessary to optimize its use, leading to the tightening of safety margins and to waste minimization [1]. Materials, depending on their application, can be subjected to different loadings, such as tensile, compression, and shear. When the material is isotropic, only a few uniaxial tests are necessary to fully characterize it within the scope of material behavior models, such as the von Mises yield criterion for metals. Polymers behave differently under tensile and compression loadings [3]
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