Durability of Structural Adhesively Bonded System.
Abstract
A comprehensive literature survey is made and the findings of investigations conducted by the authors during the past few years in this field are summarized. Basic assumptions for the present work are outlined, based on the conclusions of the above survey. An analytical study, supported by empirical data, was conducted on the effects of the state of stress on the adhesive mechanical behavior of a bonded interlaminar layer phase in the non-linear range and the time-dependency of that behavior. Tests were conducted for the derivation of viscoelastic characteristics of the adhesive phase and of the thermoelastic and hygroelastic parameters of the representative adhesives and of CFRP adherends. The effects of temperature and humidity with exposure time on the above characteristics were investigated. The major objective of the experimental work was two-fold: To provide the basic data to serve as inputs for the analysis of the hygrothermomechanical behavior of the bonded system; To develop a methodology for the reduction of the vast experimental work involved in the derivation and evaluation of such data, which are essential for predicting the durability of bonded systems during real service life. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1981
- Accession Number
- ADA111209
Entities
People
- G. Yaniv
- O. Ishai
- S. Gali