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Analytical solutions for process-induced spring-in of U-shaped composite parts.
- Source :
-
Thin-Walled Structures . Dec2021, Vol. 169, pN.PAG-N.PAG. 1p. - Publication Year :
- 2021
-
Abstract
- Analytical solutions for predicting spring-in angles of U-shaped composite parts generating in rubbery and glassy states are proposed. In the newly developed analytical solutions, the process-induced distortions of web and flange are mathematically converted to spring-in angles within the scope of small deformation theory, and then corresponding analytical expressions of web, corner, flange and total spring-in are separately derived. These new solutions can quantitatively give the correlation of web, corner, flange and total spring-in with material properties-related and geometrical configuration-dependent parameters, and evaluate the spring-in angles of multi-angle ply composite parts just using lamina properties. The reliability of newly proposed analytical solutions is checked by the comparison between the analytically calculated and experimentally measured spring-in angles for unidirectional and quasi-isotropic U-shaped composite parts. Meanwhile, numerical simulations on the U-shaped composite parts with various geometries and layups also provide a favourable agreement with analytical results. • Analytical solutions for spring-in of U-shaped composite parts are proposed. • New solutions can quantify effect of properties and geometry on spring-in angle. • New solutions can evaluate the spring-in angles just via lamina properties. • The reliability of solutions is experimentally and numerically validated. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANALYTICAL solutions
*GEOMETRY
*FLANGES
Subjects
Details
- Language :
- English
- ISSN :
- 02638231
- Volume :
- 169
- Database :
- Academic Search Index
- Journal :
- Thin-Walled Structures
- Publication Type :
- Academic Journal
- Accession number :
- 153238751
- Full Text :
- https://doi.org/10.1016/j.tws.2021.108425