Adhesive Thickness and Ageing Effects on the Mechanical Behaviour of Similar and Dissimilar Single Lap Joints Used in the Automotive Industry

被引：6

作者：

Ciardiello, Raffaele ^{[1
,2
]}

Niutta, Carlo Boursier ^{[1
]}

Goglio, Luca ^{[1
,2
]}

机构：

[1] Politecn Torino IT, Dept Mech & Aerosp Engn, I-10129 Turin, Italy

[2] Politecn Torino IT, J TECHPOLITO, Adv Joining Technol, I-10129 Turin, Italy

来源：

PROCESSES | 2023年 / 11卷 / 02期

关键词：

single lap joints; polyurethane adhesive; finite element model; cohesive model; ageing cycles; POLYURETHANE; FAILURE;

D O I：

10.3390/pr11020433

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The effects of the adhesive thickness and overlap of a polyurethane adhesive have been studied by using different substrate configurations. Single lap joint (SLJ) specimens have been tested with homologous substrates, carbon fibre-reinforced plastics and painted metal substrates. Furthermore, a configuration with dissimilar substrates has been included in the experimental campaign. Both types of these adhesive and substrates are used in the automotive industry. The bonding procedure has been carried out without a surface treatment in order to quantify the shear strength and stiffness when surface treatments are not used on the substrates, reproducing typical mass production conditions. Three different ageing cycles have been used to evaluate the effects on SLJ specimens. A finite element model that uses cohesive modelling has been built and optimised to assess the differences between the different adopted SLJ configurations.

引用

页数：16

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