Mechanics of thin film systems and the impact of external factors on underlying function
Abstract/Contents
- Abstract
- Thin films surround us in more ways than one. From the devices in our phones to the skin on our bodies, thin films are everywhere. In my PhD work, I delved deep into the critical roles that these films play in our everyday life. First, I look at how our skin can effect our perception through tactile interactions with ourselves and the world around us. By applying cosmetic treatments, we can explore how changing biomechanical properties affect these neurological perceptions. Next, I demonstrate how thin film measurement methods used for inorganic films can be useful tools for exploring questions relevant to medicine and biomechanics. Finally, I apply similar methods to in situ characterization of novel solar absorbing films showing how applicable these thin film techniques can be to a wide range of material systems. In exploring skin mechanics, I will show how moisturizing and cleanser treatments can cause measurable changes in comfort for users. Then, I compare these results were compared to ex-vivo peak drying stress measurements and correlations of r(9) = -.88, p < .01 for moisturizers and r(6) = -.99, p < .01 for cleansers are shown. Finally, I develop a computational model was to demonstrate the transmission of SC drying stresses as strain fields to the lower receptor-laden layers of skin. These strain distributions suggest heightened mechanoreceptor activation correlated with stresses in the SC. Next, I show in different cardiovascular systems how bulge testing can be a useful tool for evaluating recovery of tissue. I demonstrate how mouse heart regeneration can be demonstrated from a functional perspective by measuring the modulus with bulge testing post infarction. Next, I am able to demonstrate key empirical evidence of heightened leaflet degradation in porcine leaflets when subjected to ex vivo testing modeling the Ross procedure. Finally, I will demonstrate the importance of thermomechanics when evaluating solar absorber behavior. Novel mechanisms for efficiency improvements are all the rage, but without proper controls, the results can often be misleading. By leveraging thin film systems developed for studying drying, Im able to show that key findings related to light induced expansion are fully explainable by thermal effects
Description
| Type of resource | text |
|---|---|
| Form | electronic resource; remote; computer; online resource |
| Extent | 1 online resource |
| Place | California |
| Place | [Stanford, California] |
| Publisher | [Stanford University] |
| Copyright date | 2020; ©2020 |
| Publication date | 2020; 2020 |
| Issuance | monographic |
| Language | English |
Creators/Contributors
| Author | Bennett-Kennett, Ross |
|---|---|
| Degree supervisor | Dauskardt, R. H. (Reinhold H.) |
| Thesis advisor | Dauskardt, R. H. (Reinhold H.) |
| Associated with | Stanford University, Department of Materials Science and Engineering |
Subjects
| Genre | Theses |
|---|---|
| Genre | Text |
Bibliographic information
| Statement of responsibility | Ross Bennett-Kennett |
|---|---|
| Note | Submitted to the Department of Materials Science and Engineering |
| Thesis | Thesis Ph.D. Stanford University 2020 |
| Location | electronic resource |
Access conditions
- Copyright
- © 2020 by Ross Bennett-Kennett
- License
- This work is licensed under a Creative Commons Attribution Non Commercial 3.0 Unported license (CC BY-NC).
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