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Title: Durability of Ti-6Al-4V/LaRC-PETI-5 adhesive bonded system for HSCT applications

Abstract

Structural adhesive joints are being widely used and studied as alternatives to conventional fasteners in the aerospace, automotive, and other industries. Adhesive bonding offers advantages such as lower weight and lower manufacturing costs. Furthermore, high performance adhesives which are currently being synthesized (e.g. epoxies, phenolics, acrylics, thermoplastic polyimides) offer other useful properties such as higher modulus, higher toughness, and stability at high temperatures. In the present study, the durability of the Ti-6Al-4V/LaRC PETI-5 adhesive bonded system is being evaluated utilizing double cantilever beam (DCB) fracture specimens. These DCB tests have been used extensively to study adhesive joints. The current study is part of a comprehensive study to develop a durable material system for application in the proposed mach 2.4 high speed civil transport (HSCT) aircraft. According to the design criteria, the material system to be used on the aircraft should be durable for over 60,000 hours of flight encountering temperatures during flight in the range of 177{degrees}C. Physical aging and chemical aging of the adhesive material are some of the important issues which have to be evaluated and taken into consideration for predicting the bond durability. In order to simulate the service environment conditions of the HSCT, the Ti-6Al-4V/LaRC PETI-5more » bonds were aged in one of three temperatures; 150, 177, and 204{degrees}C, at one of three different environments; atmospheric air, and reduced air pressures of 2 psi air (13.8 KPa) and 0.2 psi air (1.38 KPa).« less

Authors:
; ; ;  [1]
  1. Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States)
Publication Date:
OSTI Identifier:
441495
Report Number(s):
CONF-960214-
TRN: 96:006556-0028
Resource Type:
Conference
Resource Relation:
Conference: 19. annual meeting of the Adhesion Society, Inc, Myrtle Beach, SC (United States), 18-21 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the 19th annual meeting of the Adhesion Society; Ward, T.C. [ed.]; PB: 567 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; IMIDES; ADHESION; ALUMINIUM BASE ALLOYS; TITANIUM ALLOYS; VANADIUM ALLOYS; AIRCRAFT

Citation Formats

Parvatareddy, H, Pasricha, A, Dillard, D A, and Dillard, J G. Durability of Ti-6Al-4V/LaRC-PETI-5 adhesive bonded system for HSCT applications. United States: N. p., 1996. Web.
Parvatareddy, H, Pasricha, A, Dillard, D A, & Dillard, J G. Durability of Ti-6Al-4V/LaRC-PETI-5 adhesive bonded system for HSCT applications. United States.
Parvatareddy, H, Pasricha, A, Dillard, D A, and Dillard, J G. 1996. "Durability of Ti-6Al-4V/LaRC-PETI-5 adhesive bonded system for HSCT applications". United States.
@article{osti_441495,
title = {Durability of Ti-6Al-4V/LaRC-PETI-5 adhesive bonded system for HSCT applications},
author = {Parvatareddy, H and Pasricha, A and Dillard, D A and Dillard, J G},
abstractNote = {Structural adhesive joints are being widely used and studied as alternatives to conventional fasteners in the aerospace, automotive, and other industries. Adhesive bonding offers advantages such as lower weight and lower manufacturing costs. Furthermore, high performance adhesives which are currently being synthesized (e.g. epoxies, phenolics, acrylics, thermoplastic polyimides) offer other useful properties such as higher modulus, higher toughness, and stability at high temperatures. In the present study, the durability of the Ti-6Al-4V/LaRC PETI-5 adhesive bonded system is being evaluated utilizing double cantilever beam (DCB) fracture specimens. These DCB tests have been used extensively to study adhesive joints. The current study is part of a comprehensive study to develop a durable material system for application in the proposed mach 2.4 high speed civil transport (HSCT) aircraft. According to the design criteria, the material system to be used on the aircraft should be durable for over 60,000 hours of flight encountering temperatures during flight in the range of 177{degrees}C. Physical aging and chemical aging of the adhesive material are some of the important issues which have to be evaluated and taken into consideration for predicting the bond durability. In order to simulate the service environment conditions of the HSCT, the Ti-6Al-4V/LaRC PETI-5 bonds were aged in one of three temperatures; 150, 177, and 204{degrees}C, at one of three different environments; atmospheric air, and reduced air pressures of 2 psi air (13.8 KPa) and 0.2 psi air (1.38 KPa).},
doi = {},
url = {https://www.osti.gov/biblio/441495}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}

Conference:
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