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An investigation into biomechanical and biotribological properties of a real intestine for design of a spiral-type robotic capsule

Conference Paper


Abstract


  • This paper reports on the results and implications

    of our experimental investigation into the biomechanical and

    biotribological properties of a real intestine for the optimal

    design of a spiral-type robotic capsule. Experiments were

    conducted to measure the stress relaxation and the stress-strain

    relations, which indicate that the small intestine shows the

    typical behavior of a viscoelastic material. Within a certain

    range of strain, the intestine tissue appears to have a quasi-linear

    viscoelasticity. The strain ranges change when different strain

    rates are applied. Both strain and frequency affect the storage

    modulus of the intestine in dynamic shear tests. The sliding

    friction experiments were conducted with different bar-shaped

    solid samples to determine their sliding friction on the inner

    surface of the small intestine, which mimics the sliding friction

    between a spiral-type robotic capsule operating in an intestine.

    The results show that the viscoelastic materials cause higher

    coefficient of friction (COF) than the contacting objects made of

    other substance such as metal. Moreover, carving grooves on the

    contacting surface also increases COF. All these findings help to

    enhance the traction force of a spiral-type capsule by optimizing

    its topology.

Publication Date


  • 2013

Citation


  • Zhou, H., Alici, G., Than, T. Duc. & Li, W. (2013). An investigation into biomechanical and biotribological properties of a real intestine for design of a spiral-type robotic capsule. 2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) (pp. 71-76). United States: IEEE.

Scopus Eid


  • 2-s2.0-84883719484

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1243

Start Page


  • 71

End Page


  • 76

Place Of Publication


  • United States

Abstract


  • This paper reports on the results and implications

    of our experimental investigation into the biomechanical and

    biotribological properties of a real intestine for the optimal

    design of a spiral-type robotic capsule. Experiments were

    conducted to measure the stress relaxation and the stress-strain

    relations, which indicate that the small intestine shows the

    typical behavior of a viscoelastic material. Within a certain

    range of strain, the intestine tissue appears to have a quasi-linear

    viscoelasticity. The strain ranges change when different strain

    rates are applied. Both strain and frequency affect the storage

    modulus of the intestine in dynamic shear tests. The sliding

    friction experiments were conducted with different bar-shaped

    solid samples to determine their sliding friction on the inner

    surface of the small intestine, which mimics the sliding friction

    between a spiral-type robotic capsule operating in an intestine.

    The results show that the viscoelastic materials cause higher

    coefficient of friction (COF) than the contacting objects made of

    other substance such as metal. Moreover, carving grooves on the

    contacting surface also increases COF. All these findings help to

    enhance the traction force of a spiral-type capsule by optimizing

    its topology.

Publication Date


  • 2013

Citation


  • Zhou, H., Alici, G., Than, T. Duc. & Li, W. (2013). An investigation into biomechanical and biotribological properties of a real intestine for design of a spiral-type robotic capsule. 2013 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) (pp. 71-76). United States: IEEE.

Scopus Eid


  • 2-s2.0-84883719484

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/1243

Start Page


  • 71

End Page


  • 76

Place Of Publication


  • United States