Details
| Original language | English |
|---|---|
| Title of host publication | Constitutive Models for Rubber XIII |
| Subtitle of host publication | Proceedings of the 13th European Conference on Constitutive Models for Rubber, ECCMR 2024 |
| Editors | Hüsnü Dal |
| Pages | 228-232 |
| Number of pages | 5 |
| Publication status | Published - 2025 |
| Event | 13th European Conference on Constitutive Models for Rubber, ECCMR 2024 - Istanbul, Turkey Duration: 26 Jun 2024 → 28 Jun 2024 |
Abstract
Ongoing demands on the improvement of service life performance of highly stressed elastomer parts require transferable and efficient laboratory evaluation procedures to estimate the suitability of the materials for safety-relevant usage. For analysis of the mechanical fracture behaviour often dynamic fatigue crack growth (FCG) tests on notched specimens are performed. Recently, company COESFELD MATERIAL TEST and the DIK developed an enhanced evaluation method which combines the automatic Tear- Fatigue-Analysis with Digital Image Correlation (DIC) and Post-Processing to get spatially resolved strain and stress information in the vicinity of the crack tip. While the strain information obtained by DIC are highly accurate, the stress information depends on the assumed material model, which is applied within a mapping procedure to locally transfer local strain to local stress. Since elastomers generally display a complex material behaviour involving e.g., hyper elasticity, relaxation, energy dissipation and in some cases, strain induced crystallisation (SIC), it is necessary to develop constitutive models in respect for these phenomena. Accordingly, an energetical model considering crystallisation is presented which can be applied for the interpretation of FCG experiment results, especially with respect to the significance in the prediction of local strain fields in the crack tip vicinity.
ASJC Scopus subject areas
- Materials Science(all)
- Polymers and Plastics
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Constitutive Models for Rubber XIII : Proceedings of the 13th European Conference on Constitutive Models for Rubber, ECCMR 2024. ed. / Hüsnü Dal. 2025. p. 228-232.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Influence of strain induced crystallisation on the dynamic crack propagation resistivity of NR vulcanisates
AU - Hanne, N.
AU - Egelkamp, C.
AU - Meier, J.
AU - Junker, P.
N1 - Publisher Copyright: © 2025 The Author(s).
PY - 2025
Y1 - 2025
N2 - Ongoing demands on the improvement of service life performance of highly stressed elastomer parts require transferable and efficient laboratory evaluation procedures to estimate the suitability of the materials for safety-relevant usage. For analysis of the mechanical fracture behaviour often dynamic fatigue crack growth (FCG) tests on notched specimens are performed. Recently, company COESFELD MATERIAL TEST and the DIK developed an enhanced evaluation method which combines the automatic Tear- Fatigue-Analysis with Digital Image Correlation (DIC) and Post-Processing to get spatially resolved strain and stress information in the vicinity of the crack tip. While the strain information obtained by DIC are highly accurate, the stress information depends on the assumed material model, which is applied within a mapping procedure to locally transfer local strain to local stress. Since elastomers generally display a complex material behaviour involving e.g., hyper elasticity, relaxation, energy dissipation and in some cases, strain induced crystallisation (SIC), it is necessary to develop constitutive models in respect for these phenomena. Accordingly, an energetical model considering crystallisation is presented which can be applied for the interpretation of FCG experiment results, especially with respect to the significance in the prediction of local strain fields in the crack tip vicinity.
AB - Ongoing demands on the improvement of service life performance of highly stressed elastomer parts require transferable and efficient laboratory evaluation procedures to estimate the suitability of the materials for safety-relevant usage. For analysis of the mechanical fracture behaviour often dynamic fatigue crack growth (FCG) tests on notched specimens are performed. Recently, company COESFELD MATERIAL TEST and the DIK developed an enhanced evaluation method which combines the automatic Tear- Fatigue-Analysis with Digital Image Correlation (DIC) and Post-Processing to get spatially resolved strain and stress information in the vicinity of the crack tip. While the strain information obtained by DIC are highly accurate, the stress information depends on the assumed material model, which is applied within a mapping procedure to locally transfer local strain to local stress. Since elastomers generally display a complex material behaviour involving e.g., hyper elasticity, relaxation, energy dissipation and in some cases, strain induced crystallisation (SIC), it is necessary to develop constitutive models in respect for these phenomena. Accordingly, an energetical model considering crystallisation is presented which can be applied for the interpretation of FCG experiment results, especially with respect to the significance in the prediction of local strain fields in the crack tip vicinity.
UR - http://www.scopus.com/inward/record.url?scp=85217653106&partnerID=8YFLogxK
U2 - 10.1201/9781003516880-36
DO - 10.1201/9781003516880-36
M3 - Conference contribution
AN - SCOPUS:85217653106
SN - 9781032851389
SP - 228
EP - 232
BT - Constitutive Models for Rubber XIII
A2 - Dal, Hüsnü
T2 - 13th European Conference on Constitutive Models for Rubber, ECCMR 2024
Y2 - 26 June 2024 through 28 June 2024
ER -