Failure analysis of single-bolted joint for lightweight composite laminates and metal plate

2017 2nd International Conference on Innovative Engineering Materials

Li, Linjie^1 ; Qu, Junli^1 ; Liu, Xiangdong^1

Department of Mechanics, Xi'An University of Science and Technology, 58 Yanta Road, Beilin District, Xi'an

710054, China^1

关键词: Composite laminate;    Damage accumulation;    Fibre-reinforced epoxy;    Laminated composite plates;    Lightweight composites;    Single-bolted joints;    Three-dimensional progressive damage;    Ultimate tensile strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/284/1/012027/pdf
DOI  :  10.1088/1757-899X/284/1/012027

来源: IOP

【 摘 要 】

A three-dimensional progressive damage model was developed in ANSYS to predict the damage accumulation of single bolted joint in composite laminates under in-plane tensile loading. First, we describe the formulation and algorithm of this model. Second, we calculate the failure loads of the joint in fibre reinforced epoxy laminated composite plates and compare it with the experiment results, which validates that our model can appropriately simulate the ultimate tensile strength of the joints and the whole process of failure of structure. Finally, this model is applied to study the failure process of the light-weight composite material (USN125). The study also has a great potential to provide a strong basis for bolted joints design in composite Laminates as well as a simple tool for comparing different laminate geometries and bolt arrangements.