Thesis
Digital image correlation at free edges with applications to composite materials
Washington State University
Master of Science (MS), Washington State University
2013
Handle:
https://hdl.handle.net/2376/101222
Abstract
Validation of the capabilities of ASDIC was done using three tests that involved a strain gradient near a free edge, namely, four point bending of a polycarbonate beam, carbon fiber reinforced polymer open hole tension tests of three different stacking sequences, and a pre cracked aluminum beam in three point bending. A benchmark model was developed for each tests and used as a comparison of the capabilities of both digital image correlation and the proposed technique. ASDIC allowed strain to be measured at all free edges examined within 0.04%, 13%, and 28% of the strain predicted by the benchmark models for the four point bending, open hole tension, and cracked bending specimens respectively. The largest improvement was seen at the closest location that DIC can measure strain. ASDIC was within 5% of the benchmark models and DIC was within 30%.
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Details
- Title
- Digital image correlation at free edges with applications to composite materials
- Creators
- Greg N. Nelson
- Contributors
- Lloyd V. Smith (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Mechanical and Materials Engineering, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; [Pullman, Washington] :
- Identifiers
- 99900525274601842
- Language
- English
- Resource Type
- Thesis