### Abstract

In order to understand the influence of biofilm's physical and microbiological structures on its mechanical behavior, a finite element model that describes the structural mechanics of a composite solid is linked to the outputs of the multi-component biofilm model UMCCA. The UMCCA model outputs densities of active biomass, inert biomass, and EPS for each compartment in a 2-D biofilm. These densities are mapped to the finite-element model to give a composite Young's modulus, which expresses the stress-strain properties of the biofilm by location. Sample results illustrate that using this methodology, one can identify the points in the biofilm that develop the highest internal stresses and that are most likely to fail first, leading to detachment.

Original language | English (US) |
---|---|

Pages (from-to) | 161-166 |

Number of pages | 6 |

Journal | Water Science and Technology |

Volume | 52 |

Issue number | 7 |

State | Published - 2005 |

Externally published | Yes |

### Fingerprint

### Keywords

- Biofilm
- Elasticity
- EPS
- Finite element analysis
- Numerical modeling

### ASJC Scopus subject areas

- Water Science and Technology

### Cite this

*Water Science and Technology*,

*52*(7), 161-166.

**Finite element modeling to expand the UMCCA model to describe biofilm mechanical behavior.** / Laspidou, C. S.; Rittmann, Bruce; Karamanos, S. A.

Research output: Contribution to journal › Article

*Water Science and Technology*, vol. 52, no. 7, pp. 161-166.

}

TY - JOUR

T1 - Finite element modeling to expand the UMCCA model to describe biofilm mechanical behavior

AU - Laspidou, C. S.

AU - Rittmann, Bruce

AU - Karamanos, S. A.

PY - 2005

Y1 - 2005

N2 - In order to understand the influence of biofilm's physical and microbiological structures on its mechanical behavior, a finite element model that describes the structural mechanics of a composite solid is linked to the outputs of the multi-component biofilm model UMCCA. The UMCCA model outputs densities of active biomass, inert biomass, and EPS for each compartment in a 2-D biofilm. These densities are mapped to the finite-element model to give a composite Young's modulus, which expresses the stress-strain properties of the biofilm by location. Sample results illustrate that using this methodology, one can identify the points in the biofilm that develop the highest internal stresses and that are most likely to fail first, leading to detachment.

AB - In order to understand the influence of biofilm's physical and microbiological structures on its mechanical behavior, a finite element model that describes the structural mechanics of a composite solid is linked to the outputs of the multi-component biofilm model UMCCA. The UMCCA model outputs densities of active biomass, inert biomass, and EPS for each compartment in a 2-D biofilm. These densities are mapped to the finite-element model to give a composite Young's modulus, which expresses the stress-strain properties of the biofilm by location. Sample results illustrate that using this methodology, one can identify the points in the biofilm that develop the highest internal stresses and that are most likely to fail first, leading to detachment.

KW - Biofilm

KW - Elasticity

KW - EPS

KW - Finite element analysis

KW - Numerical modeling

UR - http://www.scopus.com/inward/record.url?scp=28244481782&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=28244481782&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:28244481782

VL - 52

SP - 161

EP - 166

JO - Water Science and Technology

JF - Water Science and Technology

SN - 0273-1223

IS - 7

ER -