Loading…
An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission
Atomic simulations were undertaken to analyse the effect of polymer chain scission on amorphous poly(lactide) during degradation. Many experimental studies have analysed mechanical properties degradation but relatively few computation studies have been conducted. Such studies are valuable for suppor...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Default Article |
| Published: |
2015
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/2134/26779 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1818167006473486336 |
|---|---|
| author | Andy Gleadall Jingzhe Pan Marc-Anton Kruft |
| author_facet | Andy Gleadall Jingzhe Pan Marc-Anton Kruft |
| author_sort | Andy Gleadall (4378279) |
| collection | Figshare |
| description | Atomic simulations were undertaken to analyse the effect of polymer chain scission on amorphous poly(lactide) during degradation. Many experimental studies have analysed mechanical properties degradation but relatively few computation studies have been conducted. Such studies are valuable for supporting the design of bioresorbable medical devices. Hence in this paper, an Effective Cavity Theory for the degradation of Young's modulus was developed. Atomic simulations indicated that a volume of reduced-stiffness polymer may exist around chain scissions. In the Effective Cavity Theory, each chain scission is considered to instantiate an effective cavity. Finite Element Analysis simulations were conducted to model the effect of the cavities on Young's modulus. Since polymer crystallinity affects mechanical properties, the effect of increases in crystallinity during degradation on Young's modulus is also considered. To demonstrate the ability of the Effective Cavity Theory, it was fitted to several sets of experimental data for Young's modulus in the literature. |
| format | Default Article |
| id | rr-article-9566447 |
| institution | Loughborough University |
| publishDate | 2015 |
| record_format | Figshare |
| spelling | rr-article-95664472015-07-31T00:00:00Z An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission Andy Gleadall (4378279) Jingzhe Pan (7212152) Marc-Anton Kruft (7212434) Mechanical engineering not elsewhere classified Biodegradable polymers Degradation Young’s modulus Mechanical properties Computer modelling Mechanical Engineering not elsewhere classified Mechanical Engineering Atomic simulations were undertaken to analyse the effect of polymer chain scission on amorphous poly(lactide) during degradation. Many experimental studies have analysed mechanical properties degradation but relatively few computation studies have been conducted. Such studies are valuable for supporting the design of bioresorbable medical devices. Hence in this paper, an Effective Cavity Theory for the degradation of Young's modulus was developed. Atomic simulations indicated that a volume of reduced-stiffness polymer may exist around chain scissions. In the Effective Cavity Theory, each chain scission is considered to instantiate an effective cavity. Finite Element Analysis simulations were conducted to model the effect of the cavities on Young's modulus. Since polymer crystallinity affects mechanical properties, the effect of increases in crystallinity during degradation on Young's modulus is also considered. To demonstrate the ability of the Effective Cavity Theory, it was fitted to several sets of experimental data for Young's modulus in the literature. 2015-07-31T00:00:00Z Text Journal contribution 2134/26779 https://figshare.com/articles/journal_contribution/An_atomic_finite_element_model_for_biodegradable_polymers_Part_2_A_model_for_change_in_Young_s_modulus_due_to_polymer_chain_scission/9566447 CC BY-NC-ND 4.0 |
| spellingShingle | Mechanical engineering not elsewhere classified Biodegradable polymers Degradation Young’s modulus Mechanical properties Computer modelling Mechanical Engineering not elsewhere classified Mechanical Engineering Andy Gleadall Jingzhe Pan Marc-Anton Kruft An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission |
| title | An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission |
| title_full | An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission |
| title_fullStr | An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission |
| title_full_unstemmed | An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission |
| title_short | An atomic finite element model for biodegradable polymers. Part 2. A model for change in Young’s modulus due to polymer chain scission |
| title_sort | atomic finite element model for biodegradable polymers. part 2. a model for change in young’s modulus due to polymer chain scission |
| topic | Mechanical engineering not elsewhere classified Biodegradable polymers Degradation Young’s modulus Mechanical properties Computer modelling Mechanical Engineering not elsewhere classified Mechanical Engineering |
| url | https://hdl.handle.net/2134/26779 |