Fracture toughness of adherends bonded with two-part acrylic-based adhesive: double cantilever beam tests under static loading

IF 1.68 Q2 Dentistry Applied Adhesion Science Pub Date : 2016-06-29 DOI:10.1186/s40563-016-0067-3

Hyun-Bum Kim, Kimiyoshi Naito, Hiroyuki Oguma

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引用次数: 8

Abstract

Adhesives are used in various industries to bond materials. The failure criteria of adhesive joints are based on the strength (peel) and fracture mechanisms of the materials. It is important to investigate these criteria in relation to the propagation and separation of Mode I, II, and III cracks. The purpose of this study is to use double cantilever beam (DCB) tests to measure fracture toughness in aluminum alloy (5052-H34), glass fiber-reinforced polypropylene matrix composite, and carbon fiber-reinforced epoxy matrix composite adherends bonded with a two-part acrylic-based adhesive. The fracture behaviors of the specimens are also discussed. DCB tests are carried out to measure fracture toughness under Mode I loading of adhesively bonded joints with different types of adherends. The fracture toughnesses of the aluminum alloy, glass-fiber-reinforced polypropylene matrix composite (GF/PP), and carbon fiber-reinforced epoxy matrix composite (CF/EP) specimens are 1071, 1438, and 1652 Jm^?2, respectively. The fracture surfaces of the aluminum alloy, GF/PP, and CF/EP specimens are observed to be of the interfacial, adherend, and cohesive types, respectively.

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两组分丙烯酸基胶粘剂粘接材料的断裂韧性:静载荷下双悬臂梁试验

粘合剂用于各种工业中粘合材料。粘结接头的失效准则是基于材料的强度(剥离)和断裂机制。研究这些准则与ⅰ、ⅱ和ⅲ型裂纹的扩展和分离是很重要的。本研究的目的是使用双悬臂梁(DCB)试验来测量铝合金(5052-H34)、玻璃纤维增强聚丙烯基复合材料和碳纤维增强环氧基复合材料的断裂韧性。并对试样的断裂行为进行了讨论。采用DCB试验测量了不同粘结剂类型的粘结接头在I型载荷下的断裂韧性。铝合金、玻璃纤维增强聚丙烯基复合材料(GF/PP)和碳纤维增强环氧基复合材料(CF/EP)试样的断裂韧性分别为1071、1438和1652 Jm?2,分别。铝合金断口、GF/PP断口和CF/EP断口分别为界面断口、附着断口和内聚断口。

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来源期刊

Applied Adhesion Science Dentistry-Dentistry (miscellaneous)

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审稿时长

13 weeks

期刊介绍： Applied Adhesion Science focuses on practical applications of adhesives, with special emphasis in fields such as oil industry, aerospace and biomedicine. Topics related to the phenomena of adhesion and the application of adhesive materials are welcome, especially in biomedical areas such as adhesive dentistry. Both theoretical and experimental works are considered for publication. Applied Adhesion Science is a peer-reviewed open access journal published under the SpringerOpen brand. The journal''s open access policy offers a fast publication workflow whilst maintaining rigorous peer review process.