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

[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.

[发布机构] 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

[学科分类] 航空航天科学

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