Details
| Original language | English |
|---|---|
| Article number | 107648 |
| Number of pages | 13 |
| Journal | Polymer testing |
| Volume | 113 |
| Early online date | 2 Jun 2022 |
| Publication status | Published - Sept 2022 |
Abstract
Yield surface determination is an essential part of a material characterization, enabling the qualification of a suitable yield criterion. In the case of two-component, fiber-reinforced structural adhesives the manufacturing quality of the specimens is directly linked to the determination accuracy of the yield surface. Therefore, this work was based on specimens that have been optimized in a previous study utilizing a structural, epoxy-based adhesive designed for the manufacture of wind turbine rotor blades. This allowed for a precise identification of a yield locus in combined tension–torsion and compression–torsion experiments. A practical elasto-plastic shear stress correction was developed to account for the transition between elastic and plastic states. In addition, a scaling method of an elliptical yield locus fitting function is proposed to calculate equivalent stresses and strains. The obtained results are discussed regarding influences of viscoelasticity and are compared to existing yield criteria.
Keywords
- Elasto-plastic shear stresses, Multiaxial testing, Structural adhesives, Wind turbine rotor blades, Yield surface
ASJC Scopus subject areas
- Materials Science(all)
- Polymers and Plastics
- Engineering(all)
- Engineering (miscellaneous)
Research Area (based on ÖFOS 2012)
- TECHNICAL SCIENCES
- Environmental Engineering, Applied Geosciences
- Environmental Engineering
- Renewable energy
- TECHNICAL SCIENCES
- Materials Engineering
- Materials Engineering
- Polymer engineering
Sustainable Development Goals
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Polymer testing, Vol. 113, 107648, 09.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Yield surface derivation for a structural adhesive based on multiaxial experiments
AU - Kuhn, Michael
AU - Manousides, Nikolas
AU - Antoniou, Alexandros
AU - Balzani, Claudio
N1 - Funding Information: This work was supported by the German Federal Ministry for Economic Affairs and Climate Action (BMWK) in the ReliaBlade project (grant numbers 0324335A , 0324335B ).
PY - 2022/9
Y1 - 2022/9
N2 - Yield surface determination is an essential part of a material characterization, enabling the qualification of a suitable yield criterion. In the case of two-component, fiber-reinforced structural adhesives the manufacturing quality of the specimens is directly linked to the determination accuracy of the yield surface. Therefore, this work was based on specimens that have been optimized in a previous study utilizing a structural, epoxy-based adhesive designed for the manufacture of wind turbine rotor blades. This allowed for a precise identification of a yield locus in combined tension–torsion and compression–torsion experiments. A practical elasto-plastic shear stress correction was developed to account for the transition between elastic and plastic states. In addition, a scaling method of an elliptical yield locus fitting function is proposed to calculate equivalent stresses and strains. The obtained results are discussed regarding influences of viscoelasticity and are compared to existing yield criteria.
AB - Yield surface determination is an essential part of a material characterization, enabling the qualification of a suitable yield criterion. In the case of two-component, fiber-reinforced structural adhesives the manufacturing quality of the specimens is directly linked to the determination accuracy of the yield surface. Therefore, this work was based on specimens that have been optimized in a previous study utilizing a structural, epoxy-based adhesive designed for the manufacture of wind turbine rotor blades. This allowed for a precise identification of a yield locus in combined tension–torsion and compression–torsion experiments. A practical elasto-plastic shear stress correction was developed to account for the transition between elastic and plastic states. In addition, a scaling method of an elliptical yield locus fitting function is proposed to calculate equivalent stresses and strains. The obtained results are discussed regarding influences of viscoelasticity and are compared to existing yield criteria.
KW - Elasto-plastic shear stresses
KW - Multiaxial testing
KW - Structural adhesives
KW - Wind turbine rotor blades
KW - Yield surface
UR - http://www.scopus.com/inward/record.url?scp=85131459831&partnerID=8YFLogxK
U2 - 10.1016/j.polymertesting.2022.107648
DO - 10.1016/j.polymertesting.2022.107648
M3 - Article
AN - SCOPUS:85131459831
VL - 113
JO - Polymer testing
JF - Polymer testing
SN - 0142-9418
M1 - 107648
ER -