Swelling behavior of soft and biological materials

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Injuries or other ailments can cause swelling of tissues in the body, or of ligaments and tendons surrounding the bones. Such inflammation can lead to discomfort, pain, or even serious illness. Knowledge of the biomechanics of soft tissues is essential for correct prognosis and diagnosis. This requires good modeling and simulation of soft skeletal tissues, which cannot be carried out without experimental material characterization. Behavior of organic tissues is quite similar to that of elastomeric materials that swell when immersed in certain fluids. This work investigates the effect of swelling on compression and bulk properties and the polymeric structure of a water-based elastomer. A drastic change in mechanical and structural properties is observed during the initial swelling period. Elastic and shear moduli decrease by nearly 90% within a few days, and then exhibit almost no change. An opposite trend can be observed for Poisson's ratio; dramatic increase in the beginning, then a near-constant behavior. Variation in bulk modulus is somewhat fluctuating, but the general trend is a decrease due to swelling. After ten days of swelling, value of Poisson's ratio becomes approximately 0.5. A sharp decrease in the first week of swelling can be observed in chain density, while cross-link average molecular weight shows the opposite trend of an increase with swelling (with minor fluctuations). Results of this study can provide the material input values for modeling and simulation of the behavior of tissues and other soft biological materials. This, in turn, can form a basis for more detailed analytical and computational studies in biomechanics and biomedical engineering.

Original languageEnglish
Title of host publicationKey Engineering Materials
PublisherTrans Tech Publications Ltd
Pages580-585
Number of pages6
Volume656-657
ISBN (Print)9783038354956
DOIs
Publication statusPublished - 2015
EventInternational Conference on Machining, Materials and Mechanical Technologies, IC3MT 2014 - Taipei City, Taiwan, Province of China
Duration: Aug 31 2014Sep 5 2014

Publication series

NameKey Engineering Materials
Volume656-657
ISSN (Print)10139826

Other

OtherInternational Conference on Machining, Materials and Mechanical Technologies, IC3MT 2014
CountryTaiwan, Province of China
CityTaipei City
Period8/31/149/5/14

Fingerprint

Biological materials
Swelling
Tissue
Biomechanics
Elastic moduli
Poisson ratio
Elastomers
Biomedical engineering
Ligaments
Tendons
Structural properties
Bone
Molecular weight
Mechanical properties
Fluids
Water

Keywords

  • Biological materials
  • Effect of swelling
  • Mechanical properties
  • Rubberlike materials
  • Structural properties

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Qamar, S. Z., Akhtar, M., & Pervez, T. (2015). Swelling behavior of soft and biological materials. In Key Engineering Materials (Vol. 656-657, pp. 580-585). (Key Engineering Materials; Vol. 656-657). Trans Tech Publications Ltd. https://doi.org/10.4028/www.scientific.net/KEM.656-657.580

Swelling behavior of soft and biological materials. / Qamar, Sayyad Zahid; Akhtar, Maaz; Pervez, Tasneem.

Key Engineering Materials. Vol. 656-657 Trans Tech Publications Ltd, 2015. p. 580-585 (Key Engineering Materials; Vol. 656-657).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Qamar, SZ, Akhtar, M & Pervez, T 2015, Swelling behavior of soft and biological materials. in Key Engineering Materials. vol. 656-657, Key Engineering Materials, vol. 656-657, Trans Tech Publications Ltd, pp. 580-585, International Conference on Machining, Materials and Mechanical Technologies, IC3MT 2014, Taipei City, Taiwan, Province of China, 8/31/14. https://doi.org/10.4028/www.scientific.net/KEM.656-657.580
Qamar SZ, Akhtar M, Pervez T. Swelling behavior of soft and biological materials. In Key Engineering Materials. Vol. 656-657. Trans Tech Publications Ltd. 2015. p. 580-585. (Key Engineering Materials). https://doi.org/10.4028/www.scientific.net/KEM.656-657.580
Qamar, Sayyad Zahid ; Akhtar, Maaz ; Pervez, Tasneem. / Swelling behavior of soft and biological materials. Key Engineering Materials. Vol. 656-657 Trans Tech Publications Ltd, 2015. pp. 580-585 (Key Engineering Materials).
@inproceedings{473ad72d4c7443c9a3b0eecd3a2e7a3f,
title = "Swelling behavior of soft and biological materials",
abstract = "Injuries or other ailments can cause swelling of tissues in the body, or of ligaments and tendons surrounding the bones. Such inflammation can lead to discomfort, pain, or even serious illness. Knowledge of the biomechanics of soft tissues is essential for correct prognosis and diagnosis. This requires good modeling and simulation of soft skeletal tissues, which cannot be carried out without experimental material characterization. Behavior of organic tissues is quite similar to that of elastomeric materials that swell when immersed in certain fluids. This work investigates the effect of swelling on compression and bulk properties and the polymeric structure of a water-based elastomer. A drastic change in mechanical and structural properties is observed during the initial swelling period. Elastic and shear moduli decrease by nearly 90{\%} within a few days, and then exhibit almost no change. An opposite trend can be observed for Poisson's ratio; dramatic increase in the beginning, then a near-constant behavior. Variation in bulk modulus is somewhat fluctuating, but the general trend is a decrease due to swelling. After ten days of swelling, value of Poisson's ratio becomes approximately 0.5. A sharp decrease in the first week of swelling can be observed in chain density, while cross-link average molecular weight shows the opposite trend of an increase with swelling (with minor fluctuations). Results of this study can provide the material input values for modeling and simulation of the behavior of tissues and other soft biological materials. This, in turn, can form a basis for more detailed analytical and computational studies in biomechanics and biomedical engineering.",
keywords = "Biological materials, Effect of swelling, Mechanical properties, Rubberlike materials, Structural properties",
author = "Qamar, {Sayyad Zahid} and Maaz Akhtar and Tasneem Pervez",
year = "2015",
doi = "10.4028/www.scientific.net/KEM.656-657.580",
language = "English",
isbn = "9783038354956",
volume = "656-657",
series = "Key Engineering Materials",
publisher = "Trans Tech Publications Ltd",
pages = "580--585",
booktitle = "Key Engineering Materials",

}

TY - GEN

T1 - Swelling behavior of soft and biological materials

AU - Qamar, Sayyad Zahid

AU - Akhtar, Maaz

AU - Pervez, Tasneem

PY - 2015

Y1 - 2015

N2 - Injuries or other ailments can cause swelling of tissues in the body, or of ligaments and tendons surrounding the bones. Such inflammation can lead to discomfort, pain, or even serious illness. Knowledge of the biomechanics of soft tissues is essential for correct prognosis and diagnosis. This requires good modeling and simulation of soft skeletal tissues, which cannot be carried out without experimental material characterization. Behavior of organic tissues is quite similar to that of elastomeric materials that swell when immersed in certain fluids. This work investigates the effect of swelling on compression and bulk properties and the polymeric structure of a water-based elastomer. A drastic change in mechanical and structural properties is observed during the initial swelling period. Elastic and shear moduli decrease by nearly 90% within a few days, and then exhibit almost no change. An opposite trend can be observed for Poisson's ratio; dramatic increase in the beginning, then a near-constant behavior. Variation in bulk modulus is somewhat fluctuating, but the general trend is a decrease due to swelling. After ten days of swelling, value of Poisson's ratio becomes approximately 0.5. A sharp decrease in the first week of swelling can be observed in chain density, while cross-link average molecular weight shows the opposite trend of an increase with swelling (with minor fluctuations). Results of this study can provide the material input values for modeling and simulation of the behavior of tissues and other soft biological materials. This, in turn, can form a basis for more detailed analytical and computational studies in biomechanics and biomedical engineering.

AB - Injuries or other ailments can cause swelling of tissues in the body, or of ligaments and tendons surrounding the bones. Such inflammation can lead to discomfort, pain, or even serious illness. Knowledge of the biomechanics of soft tissues is essential for correct prognosis and diagnosis. This requires good modeling and simulation of soft skeletal tissues, which cannot be carried out without experimental material characterization. Behavior of organic tissues is quite similar to that of elastomeric materials that swell when immersed in certain fluids. This work investigates the effect of swelling on compression and bulk properties and the polymeric structure of a water-based elastomer. A drastic change in mechanical and structural properties is observed during the initial swelling period. Elastic and shear moduli decrease by nearly 90% within a few days, and then exhibit almost no change. An opposite trend can be observed for Poisson's ratio; dramatic increase in the beginning, then a near-constant behavior. Variation in bulk modulus is somewhat fluctuating, but the general trend is a decrease due to swelling. After ten days of swelling, value of Poisson's ratio becomes approximately 0.5. A sharp decrease in the first week of swelling can be observed in chain density, while cross-link average molecular weight shows the opposite trend of an increase with swelling (with minor fluctuations). Results of this study can provide the material input values for modeling and simulation of the behavior of tissues and other soft biological materials. This, in turn, can form a basis for more detailed analytical and computational studies in biomechanics and biomedical engineering.

KW - Biological materials

KW - Effect of swelling

KW - Mechanical properties

KW - Rubberlike materials

KW - Structural properties

UR - http://www.scopus.com/inward/record.url?scp=84952362306&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84952362306&partnerID=8YFLogxK

U2 - 10.4028/www.scientific.net/KEM.656-657.580

DO - 10.4028/www.scientific.net/KEM.656-657.580

M3 - Conference contribution

SN - 9783038354956

VL - 656-657

T3 - Key Engineering Materials

SP - 580

EP - 585

BT - Key Engineering Materials

PB - Trans Tech Publications Ltd

ER -