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

4th AEROTECH- Innovation in Aerospace Engineering and Technology

航空航天工程

Nasir, M.N.M.^1 ; Aminanda, Y.^1 ; Mezeix, L.^2 ; Seman, M.A.^3 ; Rivai, A.^3 ; Ali, K.M.^4

Department of Mechanical Engineering, International Islamic University Malaysia, Kuala Lumpur, Malaysia^1

Faculty of Engineering, Burapha University, Chonburi, Thailand^2

Faculty of Mechanical Engineering, Universiti Teknikal Malaysia Melaka, Malaysia^3

Aerospace Malaysia Innovation Centre, Cyberjaya, Malaysia^4

关键词: Autoclave processing;    FEA modeling;    Material orientation;    Non-linear finite-element analysis;    Physical mechanism;    Spring back;    Tool-part interaction;    Warpages;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/152/1/012046/pdf
DOI  :  10.1088/1757-899X/152/1/012046

学科分类：航空航天科学

来源: IOP

【 摘 要 】

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 (±45°) plies compared to unidirectional (0°) laminate. Three samples for each of the symmetrical laminates with angled plies [45/0]Sand [45/-45]Sare 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.