Details
| Original language | English |
|---|---|
| Title of host publication | Recent Advances in Computational and Experimental Mechanics, Select Proceedings of ICRACEM 2020 |
| Editors | D. Maity, P. K. Patra, M. S. Afzal, R. Ghoshal, C. S. Mistry, P. Jana, D. K. Maiti |
| Place of Publication | Singapore |
| Publisher | Springer Science and Business Media Deutschland GmbH |
| Pages | 51-64 |
| Number of pages | 14 |
| ISBN (electronic) | 978-981-16-6738-1 |
| ISBN (print) | 9789811667374 |
| Publication status | Published - 1 Jan 2022 |
| Event | 1st Online International Conference on Recent Advances in Computational and Experimental Mechanics, ICRACEM 2020 - Kharagpur, India Duration: 4 Sept 2020 → 6 Sept 2020 |
Publication series
| Name | Lecture Notes in Mechanical Engineering |
|---|---|
| ISSN (Print) | 2195-4356 |
| ISSN (electronic) | 2195-4364 |
Abstract
Multistable laminates have been actively researched in the recent past, due to its potential in morphing applications in different engineering sectors. Unsymmetrical cross-ply laminates, which yield two stable cylindrical shapes, are widely investigated multistable structures, where the multistability is induced due to the residual thermal stresses. However, to improve the design space in such laminates, variable stiffness (VS) laminates with curvilinear fibre paths have been investigated recently. They have been found to generate diverse stable shapes, with the possibility to tailor snap-through loads. Connecting two different laminate plates can generate more than two stable configurations, often desired in morphing applications. This study aims to develop a highly multistable continuous composite plate by connecting two square VS laminates without any external fixing aids. A parametric study is performed to understand the effect of VS parameters on the snap-through forces in comparison with the results from conventional cross-ply laminates. The multistable shapes of the series-connected laminates are analysed within a commercially available finite element package. It is concluded from the study that VS laminates can produce multiple equilibrium states with lower actuation requirements, without compromising much on out-of-plane displacements.
Keywords
- Actuation energy, Bistable laminates, Morphing structures, Multistable structures, Variable stiffness laminates
ASJC Scopus subject areas
- Engineering(all)
- Automotive Engineering
- Engineering(all)
- Aerospace Engineering
- Engineering(all)
- Mechanical Engineering
- Chemical Engineering(all)
- Fluid Flow and Transfer Processes
Sustainable Development Goals
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Recent Advances in Computational and Experimental Mechanics, Select Proceedings of ICRACEM 2020. ed. / D. Maity; P. K. Patra; M. S. Afzal; R. Ghoshal; C. S. Mistry; P. Jana; D. K. Maiti. Singapore: Springer Science and Business Media Deutschland GmbH, 2022. p. 51-64 (Lecture Notes in Mechanical Engineering).
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Multistability of Connected Variable Stiffness Laminates
AU - Phanendra Kumar, A.
AU - Anilkumar, P. M.
AU - Haldar, A.
AU - Scheffler, S.
AU - Rao, B. N.
AU - Rolfes, R.
N1 - Funding Information: The first and second authors would like to acknowledge DAAD for the support during the course of this research. The second author would like to acknowledge Prime Ministers Research Fellowship Scheme (PMRF), India, for the support during the course of this research.
PY - 2022/1/1
Y1 - 2022/1/1
N2 - Multistable laminates have been actively researched in the recent past, due to its potential in morphing applications in different engineering sectors. Unsymmetrical cross-ply laminates, which yield two stable cylindrical shapes, are widely investigated multistable structures, where the multistability is induced due to the residual thermal stresses. However, to improve the design space in such laminates, variable stiffness (VS) laminates with curvilinear fibre paths have been investigated recently. They have been found to generate diverse stable shapes, with the possibility to tailor snap-through loads. Connecting two different laminate plates can generate more than two stable configurations, often desired in morphing applications. This study aims to develop a highly multistable continuous composite plate by connecting two square VS laminates without any external fixing aids. A parametric study is performed to understand the effect of VS parameters on the snap-through forces in comparison with the results from conventional cross-ply laminates. The multistable shapes of the series-connected laminates are analysed within a commercially available finite element package. It is concluded from the study that VS laminates can produce multiple equilibrium states with lower actuation requirements, without compromising much on out-of-plane displacements.
AB - Multistable laminates have been actively researched in the recent past, due to its potential in morphing applications in different engineering sectors. Unsymmetrical cross-ply laminates, which yield two stable cylindrical shapes, are widely investigated multistable structures, where the multistability is induced due to the residual thermal stresses. However, to improve the design space in such laminates, variable stiffness (VS) laminates with curvilinear fibre paths have been investigated recently. They have been found to generate diverse stable shapes, with the possibility to tailor snap-through loads. Connecting two different laminate plates can generate more than two stable configurations, often desired in morphing applications. This study aims to develop a highly multistable continuous composite plate by connecting two square VS laminates without any external fixing aids. A parametric study is performed to understand the effect of VS parameters on the snap-through forces in comparison with the results from conventional cross-ply laminates. The multistable shapes of the series-connected laminates are analysed within a commercially available finite element package. It is concluded from the study that VS laminates can produce multiple equilibrium states with lower actuation requirements, without compromising much on out-of-plane displacements.
KW - Actuation energy
KW - Bistable laminates
KW - Morphing structures
KW - Multistable structures
KW - Variable stiffness laminates
UR - http://www.scopus.com/inward/record.url?scp=85122562719&partnerID=8YFLogxK
U2 - 10.1007/978-981-16-6738-1_5
DO - 10.1007/978-981-16-6738-1_5
M3 - Conference contribution
AN - SCOPUS:85122562719
SN - 9789811667374
T3 - Lecture Notes in Mechanical Engineering
SP - 51
EP - 64
BT - Recent Advances in Computational and Experimental Mechanics, Select Proceedings of ICRACEM 2020
A2 - Maity, D.
A2 - Patra, P. K.
A2 - Afzal, M. S.
A2 - Ghoshal, R.
A2 - Mistry, C. S.
A2 - Jana, P.
A2 - Maiti, D. K.
PB - Springer Science and Business Media Deutschland GmbH
CY - Singapore
T2 - 1st Online International Conference on Recent Advances in Computational and Experimental Mechanics, ICRACEM 2020
Y2 - 4 September 2020 through 6 September 2020
ER -