Details
| Original language | English |
|---|---|
| Pages (from-to) | 241-251 |
| Number of pages | 11 |
| Journal | International journal of fatigue |
| Volume | 70 |
| Publication status | Published - 7 Oct 2014 |
Abstract
The subject of the present article is a new layer-based fatigue damage model (FDM) for laminated multidirectional laminates exposed to general states of plane stress, which allows for simulating the stiffness and the strength degradation by means of a FEM analysis. The essential of the new model is its use of an energy approach which makes the fatigue life prediction of composites more physical and therewith its characterisation much less extensive. Since the failure analysis bases on an interacting failure criterion, the material degradation depends also on the failure mode and is layer-based. (Typical fatigue phenomena as stress redistributions and sequence effects can be analysed with the new model and due to its efficiency it is also applicable to larger structures.) The paper presents a partial validation of the model based on experimental results from the literature and different application examples. These are a shell with a hole and a rotor blade of a wind energy converter demonstrating the analysis of stress redistribution, sequence effects and the applicability of the model to large structures respectively.
Keywords
- Damage model, Degradation, Fatigue, Fibre-reinforced plastics, Layer-based
ASJC Scopus subject areas
- Mathematics(all)
- Modelling and Simulation
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Industrial and Manufacturing Engineering
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In: International journal of fatigue, Vol. 70, 07.10.2014, p. 241-251.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A physically based fatigue damage model for fibre-reinforced plastics under plane loading
AU - Krüger, Heiko
AU - Rolfes, Raimund
N1 - Funding information: Part of this work was funded by the financial support of Niedersächsische Technische Hochschule (NTH) within the project: “Life Cycle Engineering for Engineering Structures and Buildings – Strategies and Methods” which is gratefully acknowledged by the authors.
PY - 2014/10/7
Y1 - 2014/10/7
N2 - The subject of the present article is a new layer-based fatigue damage model (FDM) for laminated multidirectional laminates exposed to general states of plane stress, which allows for simulating the stiffness and the strength degradation by means of a FEM analysis. The essential of the new model is its use of an energy approach which makes the fatigue life prediction of composites more physical and therewith its characterisation much less extensive. Since the failure analysis bases on an interacting failure criterion, the material degradation depends also on the failure mode and is layer-based. (Typical fatigue phenomena as stress redistributions and sequence effects can be analysed with the new model and due to its efficiency it is also applicable to larger structures.) The paper presents a partial validation of the model based on experimental results from the literature and different application examples. These are a shell with a hole and a rotor blade of a wind energy converter demonstrating the analysis of stress redistribution, sequence effects and the applicability of the model to large structures respectively.
AB - The subject of the present article is a new layer-based fatigue damage model (FDM) for laminated multidirectional laminates exposed to general states of plane stress, which allows for simulating the stiffness and the strength degradation by means of a FEM analysis. The essential of the new model is its use of an energy approach which makes the fatigue life prediction of composites more physical and therewith its characterisation much less extensive. Since the failure analysis bases on an interacting failure criterion, the material degradation depends also on the failure mode and is layer-based. (Typical fatigue phenomena as stress redistributions and sequence effects can be analysed with the new model and due to its efficiency it is also applicable to larger structures.) The paper presents a partial validation of the model based on experimental results from the literature and different application examples. These are a shell with a hole and a rotor blade of a wind energy converter demonstrating the analysis of stress redistribution, sequence effects and the applicability of the model to large structures respectively.
KW - Damage model
KW - Degradation
KW - Fatigue
KW - Fibre-reinforced plastics
KW - Layer-based
UR - http://www.scopus.com/inward/record.url?scp=84908362127&partnerID=8YFLogxK
U2 - 10.1016/j.ijfatigue.2014.09.023
DO - 10.1016/j.ijfatigue.2014.09.023
M3 - Article
AN - SCOPUS:84908362127
VL - 70
SP - 241
EP - 251
JO - International journal of fatigue
JF - International journal of fatigue
SN - 0142-1123
ER -