Analysis of the adhesive thickness effect on failure pressure of metal/composite hybrid joints in pressurized blister tests

被引：5
作者：
Miranda, B. M. [1 ]
Reis, J. M. L. [1 ]
Mattos, H. S. da Costa [1 ]
机构：
[1] Univ Fed Fluminense UFF, LMTA Grad Program Mech Engn, Lab Theoret & Appl Mech, PGMEC, Rua Passo Patria 156, BR-24210240 Niteroi, RJ, Brazil
来源：
INTERNATIONAL JOURNAL OF ADHESION AND ADHESIVES | 2023年 / 121卷
关键词：
Adhesive thickness; Metal; composite joints; Blister test; COMPOSITE REPAIR SYSTEM; PIPELINES; BEHAVIOR; FRACTURE; CRACK; LAYER;
D O I：
10.1016/j.ijadhadh.2022.103314
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Composite repairs are increasingly being used to restore the work capability of pipelines with through-wall defects by corrosion. In this context international standards, such as ISO and ASME are the references to design this kind of repair and to qualify such systems. The referred standards do not take into account the ad-hesive layer thickness (h) on the model for the calculation of the failure pressure (Pcr), as well as for the calculation of the energy release rate (gamma). In this work an experimental investigation evidences the influence of the adhesive thickness on the failure pressure. In order to achieve these results, pressurized blister tests were performed in which the geometrical parameter (h) varied from 0,5 mm to 2,0 mm. Ultimately, an empirical model to calculate Pcr as when the critical energy release rate (gamma LCL) is a function of the adhesive layer thickness was proposed.
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页数：8
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