径向脉冲力下薄壁内衬再生复合管层间应力分析  

Analysis of Interlayer Stress State in Thin-Walled Lined Regenerative Composite Pipes under Pulse Load

作　　者：卢召红[1] 阮驰 殷兆龙 张勇 彭郑飞 徐畅[1] Lu Zhaohong;Ruan Chi;Yin Zhaolong;Zhang Yong;Peng Zhengfei;Xu Chang(Northeast Petroleum University,Daqing City,Heilongjiang Province,163318;Daqing Oilfield Engineering Construction Co.,Ltd,Daqing City,Heilongjiang Province 163000;Daqing Petrochemical Engineering Detection technology Co.,Ltd,Daqing City,Heilongjiang Province 163714)

机构地区：[1]东北石油大学,黑龙江大庆163318 [2]大庆油田工程建设有限公司,黑龙江大庆163000 [3]大庆石油化工工程检测技术有限公司,黑龙江大庆163714

出　　处：《黄河科技学院学报》2024年第8期48-52,共5页Journal of Huanghe S&T College

基　　金：国家自然科学基金项目(52174021);大庆市指导性科技计划项目(zd-2023-35)。

摘　　要：为深入研究径向脉冲力对薄壁内衬复合管层间应力的影响,基于以建立的层间相互作用本构关系,对X52N钢板和玻璃钢板通过黏结而成的复合板进行模态试验,并与有限元模拟结果进行对比,验证了胶层本构在有限元模拟中的可行性。通过建立薄壁内衬复合管有限元分析模型,研究径向脉冲力作用下,外基层管厚度与衬层厚度的比值及黏结强度对层间应力状态的影响。研究结果表明,随着层厚比的增加,层间应力的改变较为显著,而黏结强度的影响相对较小。在一定层厚比范围内,外基层管的支持效应能有效降低层间应力,但外基层管厚度也不宜过厚,过厚的外基层管会增加其质量和刚度,进而加大对内衬层的约束作用,从而导致层间应力增加。To thoroughly investigate the impact of radial impulse force on the interlaminar stress of thin-walled lined composite pipes,this paper conducts modal testing on composite plates made by bonding X52N steel plates and fiberglass plates based on the established interlaminar interaction constitutive relationship.The experimental results are compared with finite element simulation outcomes,validating the feasibility of the adhesive layer constitutive model in finite element simulations.The finite element analysis model of thin-walled lined composite pipe is established to study the ratio of the thickness of the outer base pipe to the thickness of the lining layer and the influence of the bond strength on the stress state of the interlayer under the action of radial pulse force.The results show that with the increase of layer thickness ratio,the change of interlayer stress is more significant,but the influence of bond strength is relatively small.Within a certain range of layer thickness ratios,the supporting effect of the outer layer pipe can effectively reduce interlaminar stress.However,the thickness of the outer layer pipe should not be excessively increased,as an overly thick outer layer pipe would add mass and stiffness,thereby intensifying the constraint on the inner lining layer and ultimately leading to an increase in interlaminar stress.

关 键 词：模态试验 径向脉冲力 层间应力 黏结强度 

分 类 号：TU398.9[建筑科学—结构工程]