Effect of Pressure Cycling on Fracture Energy of Polyurethane/Aluminum Adhesive Bonds

被引：3

作者：

Maclure, Alyre ^{[1
]}

Chalivendra, Vijaya B. ^{[1
]}

Ramotowski, Thomas ^{[2
]}

机构：

[1] Univ Massachusetts, Dept Mech Engn, N Dartmouth, MA 02747 USA

[2] USN, Devices Sensors & Mat R&D Branch, Undersea Warfare Ctr, Newport, RI USA

来源：

JOURNAL OF ADHESION | 2009年 / 85卷 / 12期

基金：

美国国家科学基金会;

关键词：

Aluminum; 6061; Interfacial adhesive fracture energy; Modified double cantilever specimen; Peel testing; Polyurethane; Pressure-cycling; Primer; INTERFACIAL FRACTURE; POLYMER; FATIGUE;

D O I：

10.1080/00218460903307746

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

An experimental study was conducted to investigate the effect of pressure-cycling on adhesive bond fracture energy of polyurethane/aluminum adhesive bond joints. Initially, two types of peel tests were conducted to characterize adhesive bond strength and challenges associated with pre-mature polyurethane cracking and failure during these tests are discussed. A modified double cantilever beam (MDCB) specimen configuration was specially designed and opening-mode loading conditions were employed to determine the interfacial adhesive bond energy (GC). The test specimens were pressure-cycled in water-filled tanks for 1 to 4 weeks with an increment of 1 week. The GC of pressure-cycled specimens was compared with both control and water-soaked samples (without pressure-cycling). The results indicated that pressure-cycling decreased GC values to those of the control and water-soaked samples: hence, prolonged pressure-cycling could be problematic to polymer/metal adhesive bonds of hardware installed outboard of submarine pressure hulls.

引用

页码：869 / 888

页数：20

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