Characterisation of the Deformation and Fracture Behaviour of Elastomers Under Biaxial Deformation

Schneider, Konrad; Calabrò, Roberto; Lombardi, Roberto; Kipscholl, Christian; Horst, Thomas; Schulze, Annegret; Dedova, S.; Heinrich, Gert

doi:10.1007/978-3-319-41879-7_23

Cited by 2 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…) loads were carried out to parametrize the material models. The PS and EB tests were carried out on the biaxial test machine, built by Coesfeld GmbH & Co, Dortmund, Germany, which is described in more detail by [25]. Besides, uniaxial tensile tests were carried out on an universal tension-testing machine Z010 of ZwickRoell, Ulm, Germany.…”

Section: Methodsmentioning

confidence: 99%

Material parametrization of natural rubber based compound and characterization of crack propagation under consideration of dissipative effects

2021

View full text Add to dashboard Cite

Most concepts to characterize crack propagation were developed for elastic materials. When applying these methods to elastomers, the question is how the inherent energy dissipation of the material affects the cracking behavior. This contribution presents a numerical analysis of crack growth in natural rubber taking energy dissipation due to the visco-elastic material behavior into account. For this purpose, experimental tests were first carried out under different load conditions to parameterize a Prony series as well as a Bergström–Boyce model with the results. The parameterized Prony series was then used to perform numerical investigations with respect to the cracking behavior. Using the FE-software system ANSYS and the concept of material forces, the influence and proportion of the dissipative components were discussed.

show abstract

Section: Methodsmentioning

confidence: 99%

Material parametrization of natural rubber based compound and characterization of crack propagation under consideration of dissipative effects

2021

View full text Add to dashboard Cite

show abstract

“…Biaxial loading is expected to have more complicated effects on fracture behavior in soft elastic materials than in hard materials. However, no work has been done in examining the biaxial loading effect on the fracture behaviors of hydrogels, and the corresponding work is limited to rubbers . They evaluated the fracture resistance and toughness, stress intensity factor, and J-integral as a function of biaxial strain ratio for rubber compounds. − Several simulation studies were reported mainly for uniaxial loading, − while ref studied the growth of an isolated circular crack in incompressible hyperelastic solid subjected to biaxial true stresses.…”

Section: Introductionmentioning

confidence: 99%

“…However, no work has been done in examining the biaxial loading effect on the fracture behaviors of hydrogels, and the corresponding work is limited to rubbers. 29 They evaluated the fracture resistance and toughness, stress intensity factor, and Jintegral as a function of biaxial strain ratio for rubber compounds. 30−32 Several simulation studies were reported mainly for uniaxial loading, 33−35 This study investigates the effects of biaxial loading on the fracture behavior of elastic hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Biaxial Loading Effects on Strain Energy Release Rate and Crack-Tip Strain Field in Elastic Hydrogels

Mai

Urayama

2021

Macromolecules

View full text Add to dashboard Cite

We characterized the strain energy release rate and local cracktip strain field for elastic hydrogels under several types of biaxial loading: planar, unequal biaxial, and equibiaxial extensions. The strain energy release rate (G) in each type of biaxial strain is characterized via two different approaches. One evaluates G from the change in strain energy with respect to the notch length (X c ) using single-edge notched specimens with various X c values. The other estimates G from the difference in strain energy density between the two regions far behind and ahead of the crack tip. The excellent agreement between the G values obtained by the two methods demonstrated their reliability. We also revealed the features of the local crack-tip strain field in biaxial loading, including crack-tip opening displacement, strain field area, strain magnitude resulting from crack opening, and strain singularity exponent for strain growth near the crack tip. Importantly, these properties are governed exclusively by G, independent of the biaxial loading type. The results provide an important basis for a comprehensive understanding of the fracture behavior of elastic soft materials under complicated deformations.

show abstract

Characterisation of the Deformation and Fracture Behaviour of Elastomers Under Biaxial Deformation

Cited by 2 publications

References 17 publications

Material parametrization of natural rubber based compound and characterization of crack propagation under consideration of dissipative effects

Material parametrization of natural rubber based compound and characterization of crack propagation under consideration of dissipative effects

Biaxial Loading Effects on Strain Energy Release Rate and Crack-Tip Strain Field in Elastic Hydrogels

Contact Info

Product

Resources

About