薄壁钢内衬CF圆筒承压性能仿真及水压爆破试验

发布时间：2018-10-31 10:35

【摘要】：针对含薄壁钢内衬的碳纤维缠绕圆筒典型结构,建立三维有限元模型,采用温度参数法逐层计算内衬剩余应力,并预测其承压性能;基于水压爆破试验,研究了多缠绕角下缠绕张力、不同碳纤维等级对钢内衬及复合材料圆筒承压能力的影响,并结合钢内衬的声发射振铃计数特征判别载荷屈服点。试验结果表明,含薄壁钢内衬的碳纤维缠绕圆筒的最佳缠绕张力为75 N左右,T700,T300两种强度碳纤维复合圆管的钢内衬最大屈服载荷基本相同。
[Abstract]:A three-dimensional finite element model is established for the typical carbon fiber wound cylinder with thin-walled steel lining. The residual stress of the liner is calculated layer by using the temperature parameter method, and its bearing capacity is predicted. Based on the water pressure blasting test, the influence of winding tension and carbon fiber grade on the bearing capacity of steel lining and composite cylinder under multi-winding angle was studied, and the load yield point was determined by combining the characteristics of acoustic emission ring counting of steel lining. The test results show that the optimum winding tension of carbon fiber winding cylinder with thin-walled steel lining is about 75 N, and the maximum yield load of steel lining of T700 and T300 carbon fiber composite pipe is basically the same.
【作者单位】：军械工程学院火炮工程系;河北太行机械工业有限公司;
【基金】：军队重点攻关项目(ZS2015070132A12002)
【分类号】：TB302

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