Shear Stress Distributions in Composite Models with Flaws.
Abstract
Part I. Data is presented to note the effect of a flaw in a composite material structure. The flaws introduced were un-bonded fibers and broken fibers. The models were made of glass fibers and in epoxy matrix. Shear stress data around the flaw regions were extracted using scattered light photoelasticity. The fibers were biased at 90^, 75^, and 45^. The effect on the stress distribution of an unbonded fiber model was much more pronounced than with a broken fiber and would effect design procedures. Part II. The speckle reference beam technique has been shown to be a dependable method of uniquely obtaining two components of displacement. The technique can be used in real time work and application in the area of composite model work, in dynamic work and in nonlinear work. (Author-PL)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1974
- Accession Number
- AD0782957
Entities
People
- Richard Tucker
- Walter H. Peters Iii
- Weldon F. Swinson
- William F. Ranson Iii
Organizations
- Auburn University