Study of simple CFRP-metal joint failure

Jingquan Cheng; Antonio Rodriguez; Nicolas Emerson; Arthur Symmes

doi:10.1117/12.786667

23 July 2008 Study of simple CFRP-metal joint failure

Jingquan Cheng, Antonio Rodriguez, Nicolas Emerson, Arthur Symmes

Proceedings Volume 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation; 70183F (2008) https://doi.org/10.1117/12.786667
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

In millimeter wavelength telescope design and construction, there have been a number of mysterious failures of simple CFRF-metal joints. Telescope designers have not had satisfactory interpretations of these failures. In this paper, factors which may influence the failure of joints are discussed. These include stress concentration, material creep, joint fatigue, reasons related to chemical process and manufacture process. Extrapolation formulas for material creep, joint fatigue, and differential thermal stresses are derived in this paper. Detailed chemical and manufacturing factors are also discussed. All these issues are the causes of a number of early failures under a loading which is significantly lower than the strength of adhesives used. For ensuring reliability of a precision instrument structure joint, the designer should have a thorough understanding of all these factors.

Citation Download Citation

Jingquan Cheng, Antonio Rodriguez, Nicolas Emerson, and Arthur Symmes "Study of simple CFRP-metal joint failure", Proc. SPIE 7018, Advanced Optical and Mechanical Technologies in Telescopes and Instrumentation, 70183F (23 July 2008); https://doi.org/10.1117/12.786667

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available