Spring-back simulation of flat symmetrical laminates with angled plies manufactured through autoclave processing

• Main Authors: Mohd Nasir, Mohd Narizee, Aminanda, Yulfian, Mezeix, Laurent, Seman, Mh Adam, Rivai, Ahmad, Ali, Karim M
• Format: Conference or Workshop Item
• Language: English; English
• Published: IOP Publishing 2016
• Subjects: TJ Mechanical engineering and machinery
• Online Access: http://irep.iium.edu.my/56101/7/56101.pdf; http://irep.iium.edu.my/56101/8/56101-Spring%C2%ADback%20simulation%20of%20flat%20symmetrical%20laminates%20with%20angled%20plies_SCOPUS.pdf; http://irep.iium.edu.my/56101/; http://iopscience.iop.org/article/10.1088/1757-899X/152/1/012046/pdf

This paper presents a non-linear finite element analysis (FEA) method to predict the spring-back deformation for composite structures manufactured using autoclave processing. It is a progression from previous accompanying study on flat unidirectional samples and the aim is to observe spring-back warpage on laminates consisting of angled (±45o) plies compared to unidirectional (0o) laminate. Three samples for each of the symmetrical laminates with angled plies [45/0]S and [45/-45]S are manufactured and the warpage form is observed. FEA model that was utilized in the previous study, along with the physical mechanisms of spring-back such as the first ply stretching and tool-part interaction mechanisms, are maintained with only changes in material orientation for the part and the tool-part interface components. Upon comparison, the data shows that the spring-back form for symmetrical laminate becomes more complex to predict.