Abstract
A new analytical solution for the prediction of cure-induced spring-in of L-shaped composite parts has been proposed based on modification of the model presented by authors (2017). In the newly proposed analytical solution, the flange length is incorporated into the formulation to theoretically derive the spring-in of corner of L-shaped composite part using shear-lag theory. Consequently, in addition to the cure process generated non-mechanical strain in the rubbery state in the through-thickness and length directions, the new solution can quantitatively give the correlation of spring-in of corner of L-shaped composite part with the flange length. Then, the newly proposed analytical solution is verified by the good agreement between the analytically calculated and experimentally measured spring-in angles for both the unidirectional and cross-ply L-shaped composite parts. Further numerical simulation on the elaborately selected L-shaped composite parts with various configurations also provides a favourable comparison with analytical results, showing the validity of newly proposed analytical solution.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
