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Strain measurement in biaxially loaded inhomogeneous, anisotropic elastic membranes.
Biomech Model Mechanobiol. 2002 Dec; 1(3):197-210.BM

Abstract

This paper considers the problem of measuring the strain field in biaxially loaded elastic membranes, such as soft biological tissue. Cross-correlation of intrinsic or applied speckle patterns were used to calculate the 2D displacements of small regions on the surface of a deforming membrane. This method was able to resolve 2D displacements to within a twentieth of a pixel. A finite-element model with bicubic-Hermite interpolation was used to represent the geometry of the membrane in the undeformed state. This model was fitted to the measured displacements to obtain the geometry of the membrane in the deformed state, and the strain field was calculated from the change in geometry. The strain fields were measured in both an inhomogeneous isotropic rubber membrane and a section of sheep diaphragm.

Authors+Show Affiliations

Bioengineering Institute, The University of Auckland, Auckland, New Zealand.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Evaluation Study
Journal Article
Research Support, Non-U.S. Gov't
Validation Study

Language

eng

PubMed ID

14586699

Citation

Malcolm, D T K., et al. "Strain Measurement in Biaxially Loaded Inhomogeneous, Anisotropic Elastic Membranes." Biomechanics and Modeling in Mechanobiology, vol. 1, no. 3, 2002, pp. 197-210.
Malcolm DT, Nielsen PM, Hunter PJ, et al. Strain measurement in biaxially loaded inhomogeneous, anisotropic elastic membranes. Biomech Model Mechanobiol. 2002;1(3):197-210.
Malcolm, D. T., Nielsen, P. M., Hunter, P. J., & Charette, P. G. (2002). Strain measurement in biaxially loaded inhomogeneous, anisotropic elastic membranes. Biomechanics and Modeling in Mechanobiology, 1(3), 197-210.
Malcolm DT, et al. Strain Measurement in Biaxially Loaded Inhomogeneous, Anisotropic Elastic Membranes. Biomech Model Mechanobiol. 2002;1(3):197-210. PubMed PMID: 14586699.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Strain measurement in biaxially loaded inhomogeneous, anisotropic elastic membranes. AU - Malcolm,D T K, AU - Nielsen,P M F, AU - Hunter,P J, AU - Charette,P G, PY - 2003/10/31/pubmed PY - 2004/1/21/medline PY - 2003/10/31/entrez SP - 197 EP - 210 JF - Biomechanics and modeling in mechanobiology JO - Biomech Model Mechanobiol VL - 1 IS - 3 N2 - This paper considers the problem of measuring the strain field in biaxially loaded elastic membranes, such as soft biological tissue. Cross-correlation of intrinsic or applied speckle patterns were used to calculate the 2D displacements of small regions on the surface of a deforming membrane. This method was able to resolve 2D displacements to within a twentieth of a pixel. A finite-element model with bicubic-Hermite interpolation was used to represent the geometry of the membrane in the undeformed state. This model was fitted to the measured displacements to obtain the geometry of the membrane in the deformed state, and the strain field was calculated from the change in geometry. The strain fields were measured in both an inhomogeneous isotropic rubber membrane and a section of sheep diaphragm. SN - 1617-7959 UR - https://www.unboundmedicine.com/medline/citation/14586699/Strain_measurement_in_biaxially_loaded_inhomogeneous_anisotropic_elastic_membranes_ L2 - https://www.lens.org/lens/search?q=citation_id:14586699 DB - PRIME DP - Unbound Medicine ER -