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中空玻璃微珠对结构胶粘剂力学性能影响的表征

Characterization of the Effect of Hollow Glass Beads on the Mechanical Properties of Structural Adhesives.

作者信息

Santos João P J R, Correia Daniel S, Marques Eduardo A S, Carbas Ricardo J C, Gilbert Frida, da Silva Lucas F M

机构信息

Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Campus da FEUP, Rua Dr. Roberto Frias, 400, 4200-465 Porto, Portugal.

ArcelorMittal Global R&D, 60160 Montataire, France.

出版信息

Materials (Basel). 2022 May 27;15(11):3817. doi: 10.3390/ma15113817.

DOI:10.3390/ma15113817
PMID:35683116
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9181278/
Abstract

Adhesives are extensively used in the automotive and aeronautical industries as they enable the creation of durable and light weight joints, with exceptional strength to weight ratios. The constant search for the means of adapting the mechanical performance of adhesives to each application has led to the use of several types of fillers to change their properties. Following a study on the effect of inorganic fillers, i.e., hollow glass beads, in the failure mechanisms of single lap joint's (SLJ), this work focuses on the response of the strength and fracture properties of structural adhesives to this filler. To this end, their tensile strength and mode I fracture properties were thoroughly analyzed by performing bulk tensile and double-cantilever beam (DCB) tests, at a quasi-static speed. The specimens were manufactured by adding different %v/v of filler to two epoxy-based crash resistant adhesives. Both adhesives have shown a negligible effect on the tensile strength, a decrease in strain at failure and critical energy release rate in mode I, as well as an increase of the Young's modulus, for higher % in volume of hollow glass beads. These phenomena were further analyzed recurring to scanning electron microscopy, and the concept of rule of mixtures.

摘要

粘合剂在汽车和航空工业中广泛应用，因为它们能够制造出耐用且重量轻的接头，具有出色的强度重量比。不断寻求使粘合剂的机械性能适应每种应用的方法，导致使用几种类型的填料来改变其性能。在研究了无机填料（即空心玻璃珠）对单搭接接头（SLJ）失效机制的影响之后，这项工作重点关注结构粘合剂的强度和断裂性能对这种填料的响应。为此，通过以准静态速度进行整体拉伸和双悬臂梁（DCB）试验，对它们的拉伸强度和I型断裂性能进行了全面分析。通过向两种环氧基抗冲击粘合剂中添加不同体积百分比的填料来制造试样。对于较高体积百分比的空心玻璃珠，两种粘合剂对拉伸强度的影响可忽略不计，I型失效应变和临界能量释放率降低，以及杨氏模量增加。通过扫描电子显微镜和混合法则的概念对这些现象进行了进一步分析。

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引用本文的文献

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Extended Finite Element Method (XFEM) Model for the Damage Mechanisms Present in Joints Bonded Using Adhesives Doped with Inorganic Fillers.用于研究添加无机填料的胶粘剂粘结接头损伤机制的扩展有限元法（XFEM）模型
Materials (Basel). 2023 Dec 4;16(23):7499. doi: 10.3390/ma16237499.

本文引用的文献

1
Experimental Study of the Impact of Glass Beads on Adhesive Joint Strength and Its Failure Mechanism.玻璃珠对粘接接头强度的影响及其失效机制的实验研究
Materials (Basel). 2021 Nov 19;14(22):7013. doi: 10.3390/ma14227013.
2
Mechanical, thermal and fire performance of an inorganic-organic insulation material composed of hollow glass microspheres and phenolic resin.由空心玻璃微珠和酚醛树脂组成的无机-有机隔热材料的机械、热和防火性能。
J Colloid Interface Sci. 2018 Nov 15;530:163-170. doi: 10.1016/j.jcis.2018.06.075. Epub 2018 Jun 26.