Details
| Original language | English |
|---|---|
| Pages (from-to) | 177-200 |
| Number of pages | 24 |
| Journal | Computers, Materials and Continua |
| Volume | 32 |
| Issue number | 3 |
| Publication status | Published - 2012 |
Abstract
Four different approaches for the design of axially compressed cylindrical shells are presented, namely (1) the knockdown factor (KDF) concept, (2) the single perturbation load approach, (3) a probabilistic design procedure and (4) the convex anti-optimization approach. The different design approaches take the imperfection sensitivity and the scatter of input parameters into account differently. In this paper, the design of a composite cylinder is optimized considering the ply angles as design variables. The KDF concept provides a very conservative design load and in addition an imperfection sensitive design, whereas the other approaches lead to a significantly less conservative design load and to a less imperfection sensitive design configuration. The ways in which imperfection sensitivity is treated by the different approaches and how these influence the optimal design configuration is discussed.
Keywords
- Buckling, Composites, Cylindrical shells, Design optimization
ASJC Scopus subject areas
- Materials Science(all)
- Biomaterials
- Mathematics(all)
- Modelling and Simulation
- Engineering(all)
- Mechanics of Materials
- Computer Science(all)
- Computer Science Applications
- Engineering(all)
- Electrical and Electronic Engineering
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In: Computers, Materials and Continua, Vol. 32, No. 3, 2012, p. 177-200.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Design Optimization of Composite Cylindrical Shells under Uncertainty
AU - Kriegesmann, B.
AU - Rolfes, R.
AU - Jansen, E. L.
AU - Elishakoff, I.
AU - Hühne, C.
AU - Kling, A.
PY - 2012
Y1 - 2012
N2 - Four different approaches for the design of axially compressed cylindrical shells are presented, namely (1) the knockdown factor (KDF) concept, (2) the single perturbation load approach, (3) a probabilistic design procedure and (4) the convex anti-optimization approach. The different design approaches take the imperfection sensitivity and the scatter of input parameters into account differently. In this paper, the design of a composite cylinder is optimized considering the ply angles as design variables. The KDF concept provides a very conservative design load and in addition an imperfection sensitive design, whereas the other approaches lead to a significantly less conservative design load and to a less imperfection sensitive design configuration. The ways in which imperfection sensitivity is treated by the different approaches and how these influence the optimal design configuration is discussed.
AB - Four different approaches for the design of axially compressed cylindrical shells are presented, namely (1) the knockdown factor (KDF) concept, (2) the single perturbation load approach, (3) a probabilistic design procedure and (4) the convex anti-optimization approach. The different design approaches take the imperfection sensitivity and the scatter of input parameters into account differently. In this paper, the design of a composite cylinder is optimized considering the ply angles as design variables. The KDF concept provides a very conservative design load and in addition an imperfection sensitive design, whereas the other approaches lead to a significantly less conservative design load and to a less imperfection sensitive design configuration. The ways in which imperfection sensitivity is treated by the different approaches and how these influence the optimal design configuration is discussed.
KW - Buckling
KW - Composites
KW - Cylindrical shells
KW - Design optimization
UR - http://www.scopus.com/inward/record.url?scp=84874823844&partnerID=8YFLogxK
U2 - doi:10.3970/cmc.2012.032.177
DO - doi:10.3970/cmc.2012.032.177
M3 - Article
AN - SCOPUS:84874823844
VL - 32
SP - 177
EP - 200
JO - Computers, Materials and Continua
JF - Computers, Materials and Continua
SN - 1546-2218
IS - 3
ER -