| Investigation of a New Stacking Pattern of Laminates with Approximately Constant Bending Stiffness | |
Liu QN(刘清念)1,2,3 ; Shao YF(邵颖峰)1,3; Cai, Yong4; Li, Long1,3; Song F(宋凡)1,3
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| Corresponding Author | Shao, Yingfeng(shaoyf@lnm.imech.ac.cn) ; Song, Fan(songf@lnm.imech.ac.cn) |
| Source Publication | POLYMERS
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| 2025-04-18 | |
| Volume | 17Issue:8Pages:16 |
| Abstract | To achieve laminates with constant bending stiffness to match the high precision requirement of optical systems made of carbon fiber reinforced plastic (CFRP), a new method, the normalized direction factor of bending stiffness (NDFBS), is proposed based on the normalized geometric factor of bending stiffness. Using NDFBS and its variance (VNDFBS), we investigate two common stacking patterns, I and II ([(theta(1))(m)/(theta(2))(m)/& mldr;/(theta(p))(m)](S) and [(theta(1)/theta(2)/& mldr;/theta(p))(m)](S)) and our proposed new stacking pattern, Pattern III ([(theta(1)/theta(2)/& mldr;/theta(p))(S)](m)) based on the initial quasi-isotropic laminates, [theta(1)/theta(2)/& mldr;/theta(p)]. The bending stiffness of the stacking sequence [(45/-45/0/90)(S)](2) tends to be more uniform than that of [45/-45/0/90](2S), and the order of uniformity in bending stiffness of other stacking sequences is [(60/0/-60)(S)](4) > [60/0/-60](4S) > [(60/0/-60)(S)](2) > [60/0/-60](2S). Both theoretical deviations and experimental observations confirm that as the cycle number m increased, the uniformity in bending stiffness is improved gradually, except for that of Pattern I. As the cycle number increased, the speed of Pattern III approaching the constant bending stiffness was faster than that of Patterns I and II. Notably, to achieve a nearly identical uniformity in bending stiffness, only the square root of the cycle number of Pattern II was enough for Pattern III. Based on the same initial laminate and cycle number, Pattern III exhibited more uniform bending stiffness and strength, which are appropriate for precision optical components that require dimensional stability, such as space mirrors. |
| Keyword | stacking pattern CFRP normalized direction factor of bending stiffness (NDFBS) constant bending stiffness space mirrors |
| DOI | 10.3390/polym17081098 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001476057300001 |
| WOS Keyword | SURFACE ACCURACY ; DESIGN ; PLATES |
| WOS Research Area | Polymer Science |
| WOS Subject | Polymer Science |
| Funding Project | Chinese Academy of Sciences[XDB0620101] ; Chinese Academy of Sciences[XDB0910301] ; Strategic Priority Research Program of Chinese Academy of Sciences[12232019] ; Strategic Priority Research Program of Chinese Academy of Sciences[12272388] ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| Funding Organization | Chinese Academy of Sciences ; Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS |
| Classification | 二类/Q1 |
| Ranking | 1 |
| Contributor | 邵颖峰，宋凡 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/101152 |
| Collection | 超常环境非线性力学全国重点实验室 |
| Affiliation | 1.Chinese Acad Sci, State Key Lab Nonlinear Mech LNM, Inst Mech, Beijing 100190, Peoples R China; 2.Syst Design Inst Mech Elect Engn, Beijing 100854, Peoples R China; 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China; 4.Aerosp Res Inst Mat & Proc Technol, Beijing 100076, Peoples R China |
| Recommended Citation GB/T 7714 | Liu QN,Shao YF,Cai, Yong,et al. Investigation of a New Stacking Pattern of Laminates with Approximately Constant Bending Stiffness[J]. POLYMERS,2025,17,8,:16. |
| APA | 刘清念,邵颖峰,Cai, Yong,Li, Long,&宋凡.(2025).Investigation of a New Stacking Pattern of Laminates with Approximately Constant Bending Stiffness.POLYMERS,17(8),16. |
| MLA | 刘清念,et al."Investigation of a New Stacking Pattern of Laminates with Approximately Constant Bending Stiffness".POLYMERS 17.8(2025):16. |
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