Predicting multiaxial stiffness degradation using uniaxial data
A model based on non-proportional experiments on a structural adhesive
Abstract
In this work, multiaxial experiments on a structural adhesive with varying levels of non-proportionality are analyzed with a focus on the stiffness degradation process. A load level-dependent stiffness degradation model is employed that captures both, Young’s and shear modulus degradation. It was found that a multiaxial stiffness degradation can be modeled with good approximation as a superposition of the uniaxial stiffness degradations. Furthermore, the results indicate an insignificant influence of the level of non-proportionality on both Young’s and shear modulus degradation for the analyzed short fiber-reinforced adhesive.
Details
- Organisation(s)
-
Institute of Wind Energy Systems
- External Organisation(s)
-
Technical University of Denmark
TPI Composites Germany GmbH
- Type
- Article
- Journal
- International journal of fatigue
- Volume
- 202
- ISSN
- 0142-1123
- Publication date
- 01.2026
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Modelling and Simulation, General Materials Science, Mechanics of Materials, Mechanical Engineering, Industrial and Manufacturing Engineering
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.1016/j.ijfatigue.2025.109240 (Access:
Open
)
