Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000 |
| Publikationsstatus | Veröffentlicht - 2000 |
| Extern publiziert | Ja |
| Veranstaltung | European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000 - Barcelona, Spanien Dauer: 11 Sept. 2000 → 14 Sept. 2000 |
Publikationsreihe
| Name | European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000 |
|---|
Abstract
Composite RC constructions with textile reinforcement provide a possible means of increasing the load-bearing capacity of existing structures. New textile technologies permit the effective production of textile surface structures with several layers of filament threads made of glass or carbon. Although this new type of reinforcement applied to the surface of existing structures has proved to be highly effective, clarification is still required concerning the modified load-bearing behaviour and an assessment of structural safety. Besides experimental verifications, numerical parameter studies are especially suitable for this purpose. These permit the systematic variation of a wide range of parameters at low cost. A realistic numerical structural analysis including safety assessment requires reliable input data as well as suitable computational models for the deterministic investigation; the data and the model generally include uncertainties. Particularly with regard to existing structures the scope of the available data and information is often insufficient. In such cases it is sensible to model the existing uncertainties in a suitable manner.This paper is mainly devoted to improved computational algorithms to account for the load-bearing reserves of RC-folded plate structures with textile reinforcement. These algorithms are also designed to deal with uncertainties. For non-linear FE simulating the load-bearing behaviour of the composite construction the layered model with a single reference plane, which has been in use for many years, is extended in such a way that several discrete, coupled, parallel reference planes may be introduced (multi-reference plane model). The ensuring non-rigid coupling (including delamination) between the reference planes is achieved using kinematic and static coupling conditions (interface), which are realized with the aid of bar or folded plate elements. The deterministic results obtained from the non-linear FE analysis concerning load-bearing behaviour are subsequently used for carrying out a safety assessment which includes uncertainties. For this purpose it is necessary to classify the uncertainties according to randomness, fuzziness and fuzzy randomness.
ASJC Scopus Sachgebiete
- Informatik (insg.)
- Artificial intelligence
- Mathematik (insg.)
- Angewandte Mathematik
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European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000. 2000. (European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - RC-folded plate structures with textile reinforcement
AU - Möller, B.
AU - Beer, M.
AU - Graf, W.
AU - Hoffmann, Andreas
PY - 2000
Y1 - 2000
N2 - Composite RC constructions with textile reinforcement provide a possible means of increasing the load-bearing capacity of existing structures. New textile technologies permit the effective production of textile surface structures with several layers of filament threads made of glass or carbon. Although this new type of reinforcement applied to the surface of existing structures has proved to be highly effective, clarification is still required concerning the modified load-bearing behaviour and an assessment of structural safety. Besides experimental verifications, numerical parameter studies are especially suitable for this purpose. These permit the systematic variation of a wide range of parameters at low cost. A realistic numerical structural analysis including safety assessment requires reliable input data as well as suitable computational models for the deterministic investigation; the data and the model generally include uncertainties. Particularly with regard to existing structures the scope of the available data and information is often insufficient. In such cases it is sensible to model the existing uncertainties in a suitable manner.This paper is mainly devoted to improved computational algorithms to account for the load-bearing reserves of RC-folded plate structures with textile reinforcement. These algorithms are also designed to deal with uncertainties. For non-linear FE simulating the load-bearing behaviour of the composite construction the layered model with a single reference plane, which has been in use for many years, is extended in such a way that several discrete, coupled, parallel reference planes may be introduced (multi-reference plane model). The ensuring non-rigid coupling (including delamination) between the reference planes is achieved using kinematic and static coupling conditions (interface), which are realized with the aid of bar or folded plate elements. The deterministic results obtained from the non-linear FE analysis concerning load-bearing behaviour are subsequently used for carrying out a safety assessment which includes uncertainties. For this purpose it is necessary to classify the uncertainties according to randomness, fuzziness and fuzzy randomness.
AB - Composite RC constructions with textile reinforcement provide a possible means of increasing the load-bearing capacity of existing structures. New textile technologies permit the effective production of textile surface structures with several layers of filament threads made of glass or carbon. Although this new type of reinforcement applied to the surface of existing structures has proved to be highly effective, clarification is still required concerning the modified load-bearing behaviour and an assessment of structural safety. Besides experimental verifications, numerical parameter studies are especially suitable for this purpose. These permit the systematic variation of a wide range of parameters at low cost. A realistic numerical structural analysis including safety assessment requires reliable input data as well as suitable computational models for the deterministic investigation; the data and the model generally include uncertainties. Particularly with regard to existing structures the scope of the available data and information is often insufficient. In such cases it is sensible to model the existing uncertainties in a suitable manner.This paper is mainly devoted to improved computational algorithms to account for the load-bearing reserves of RC-folded plate structures with textile reinforcement. These algorithms are also designed to deal with uncertainties. For non-linear FE simulating the load-bearing behaviour of the composite construction the layered model with a single reference plane, which has been in use for many years, is extended in such a way that several discrete, coupled, parallel reference planes may be introduced (multi-reference plane model). The ensuring non-rigid coupling (including delamination) between the reference planes is achieved using kinematic and static coupling conditions (interface), which are realized with the aid of bar or folded plate elements. The deterministic results obtained from the non-linear FE analysis concerning load-bearing behaviour are subsequently used for carrying out a safety assessment which includes uncertainties. For this purpose it is necessary to classify the uncertainties according to randomness, fuzziness and fuzzy randomness.
KW - Composites
KW - Nonlinear analysis
KW - Safety assessment
KW - Structural mechanics
UR - http://www.scopus.com/inward/record.url?scp=84887264015&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84887264015
SN - 8489925704
SN - 9788489925700
T3 - European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000
BT - European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000
T2 - European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000
Y2 - 11 September 2000 through 14 September 2000
ER -