Fundamental Studies Related to Failure of Adhesively Bonded Structures.
Abstract
This report discusses the mechanical deformations which accompany the failure process in adhesive bonds. Even less attention has been paid to the deformations that accompany the generation of an adhesive bond in the form of 'residual' stresses. These more mechanics-based concerns are of dominant importance in the proper design and durability evaluations that are so important in judging the viability of adhesive bond technology and application. The problems which are important in this connection are (1) the proper design and evaluation of tests; and (2) the careful characterization of the materials and interfaces involved in the bond. We shall consider these topics in turn below. However, it is appropriate to indicate here already that under the second category of material and interface characteristics the issues of linear versus non-linear material behavior is important, a question in which the scrim material tends to play a major role. Moreover, the question of the role of material gradients in the adhesive or, more specifically in the interphase is of concern for understanding. Lastly, we shall report on efforts to perform careful material properties measurements.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1985
- Accession Number
- ADA154072
Entities
People
- W. G. Knauss
Organizations
- California Institute of Technology