Modelowanie wstępnego prasowania proszków metodą elementów dyskretnych

JURCZAK, Kamila

doi:10.15199/24.2016.1.1

Cited by 1 publication

(1 citation statement)

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“…Due to the method of loading, it can be performed on a typical testing machine. In the case of the biaxial tensile test, an image of the behavior of an elastomeric sample in a plane stress state can be obtained [28][29][30][31]. It should be noted that, for incompressible materials, the deformation in the biaxial tensile test is the same as in the uniaxial compression test without friction.…”

Section: Experimental Workmentioning

confidence: 99%

Modeling Elastomer Compression: Exploring Ten Constitutive Equations

Kut

Ryzińska

2023

Materials

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This paper presents the results of research aimed at assessing the effectiveness of ten selected constitutive equations for hyperelastic bodies in numerical modeling of the first compression load cycle of a polyurethane elastomer with a hardness of 90 Sh A depending on the methodology for determining the material constants in the constitutive equations. An analysis was carried out for four variants for determining the constants in the constitutive equations. In three variants, the material constants were determined on the basis of a single material test, i.e., the most popular and available in engineering practice, the uniaxial tensile test (variant I), the biaxial tensile test (variant II) and the tensile test in a plane strain (variant III). In variant IV, the constants in the constitutive equations were determined on the basis of all three above material tests. The accuracy of the obtained results was verified experimentally. It has been shown that, in the case of variant I, the modeling results depend to the greatest extent on the type of constitutive equation used. Therefore, in this case it is very important to choose the right equation. Taking into account all the investigated constitutive equations, the second variant for determining the material constants turned out to be the most advantageous.

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Section: Experimental Workmentioning

confidence: 99%