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  1. KEEP
  2. Theses and Dissertations
  3. Barrett, The Honors College Thesis/Creative Project Collection
  4. Buckling Phenomenon in Pre-Stretched PDMS Substrates
  5. Full metadata

Buckling Phenomenon in Pre-Stretched PDMS Substrates

Full metadata

Title
Buckling Phenomenon in Pre-Stretched PDMS Substrates
Description

The data and results presented in this paper are part of a continuing effort to innovate and pioneer the future of engineering. The purpose of the following is to demonstrate the mechanical buckling characteristics in stiff thin film and soft substrate systems, and the importance of controlling them. In today's engineering research, wrinkling in systems in beginning to be viewed as a means for engineering innovation rather than failure. This research is important to further progress the possible applications the technology proposes, such as flexible electronics and tunable adhesives. This work utilizes a cost efficient and relatively easy method for generating and analyzing buckled systems. Ultra violate oxidation at ambient temperatures is exploited to create a stiff thin surface on rubber like polydimethylsiloxane, and couple with strain induction wrinkles are generated. Wrinkle characteristics such as amplitude, wavelengths and wetting properties were investigated. In simple cases, trends were confirmed that increased oxidation relates to increased buckle wavelengths, and increase in strain corresponds to a decrease in wavelength. Hierarchical buckles were produced in one-dimensional systems treated with a multi-step method; these were the first to be generated in the ASU labs. Unique topographic changes were produced in two-dimensional systems treated with the same method. Honeycomb or dome like structures were noted to occur, important as they undergo a different energy-reliving configuration compared to traditional parallel buckles. The information provided characterizes many aspects of the buckle phenomena and will allow for further inquiry into specific functions utilizing the technology to continue advancements in engineering.

Date Created
2013-05
Contributors
  • Valacich, Michael James (Author)
  • Jiang, Hanqing (Thesis director)
  • Yu, Hongyu (Committee member)
  • Teng, Ma (Committee member)
  • Barrett, The Honors College (Contributor)
  • Mechanical and Aerospace Engineering Program (Contributor)
Topical Subject
  • PDMS
  • Mechanical Engineering
  • Buckling Phenomenon
Resource Type
Text
Extent
49 pages
Language
eng
Copyright Statement
In Copyright
Primary Member of
Barrett, The Honors College Thesis/Creative Project Collection
Series
Academic Year 2012-2013
Handle
https://hdl.handle.net/2286/R.I.17100
Level of coding
minimal
Cataloging Standards
asu1
System Created
  • 2017-10-30 02:50:57
System Modified
  • 2021-08-11 04:09:57
  •     
  • 2 years 1 month ago
Additional Formats
  • OAI Dublin Core
  • MODS XML

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