Numerical Analysis of Interlaminar Stress Distributions around Hole in Thermoplastic Laminate
This paper investigates the interlaminar stress distributions at hole edge of notched thermoplastic laminates. Two numerical models of AS4/PEEK laminates with configuration of [±25]S4 and [0/±45/90]2S were built and studied by finite element code ANSYS. The results show: (1) The angle-ply configuration ([±25]S4) may cause more severe concentration of interlaminar shear stress at hole edge; (2) the quasi-isotropic configuration ([0/±45/90]2S) can lessen the stress concentration at hole edge.
Qing Yang, Li Hua Zhu, Jing Jing He, Zeng Feng Yan and Rui Ren
G. H. Zhao et al., "Numerical Analysis of Interlaminar Stress Distributions around Hole in Thermoplastic Laminate", Advanced Materials Research, Vols. 368-373, pp. 1543-1546, 2012