The Analysis and Design of Composite Material Bonded Joints.
Abstract
Recent experiments have shown that significant improvements can be made in the structural efficiency of single lap joints through several modifications. Tests have been conducted in which the adherends were linearly tapered from full panel thickness to practically zero thickness over the length of the bondline in the load direction. Further, tests were conducted to examine the effects of introducing small grooves on the adhesive side of the adherends, perpendicular to the load direction. Similarly, grooves only over the thicker half of the tapered adherend were investigated, because these grooves do introduce stress concentrations. In each case, significant improvements in joint efficiency were made under either static or fatigue loadings. Additionally, specific observations are made pertaining to the residual strain effect due to joint fabrication on the fatigue life of strain effect due to joint fabrication on the fatigue life of the joint. Second, studies were made on the effects of using hybrid adherends and their effect on joint efficiency.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1978
- Accession Number
- ADA060624
Entities
People
- Donald L. Flaggs
- Jack R. Vinson
- W. James Renton
Organizations
- University of Delaware