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Mechanical characterization of biological soft tissues under tensile loading - experimentation and numerical aspect

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dc.contributor.author Edirisinghe, AD
dc.contributor.author Weerasuriya, MACS
dc.contributor.author Abeygunawardane, AAGA
dc.contributor.editor Abeygunawardana, AAGA
dc.date.accessioned 2022-12-12T09:44:25Z
dc.date.available 2022-12-12T09:44:25Z
dc.date.issued 2022-11
dc.identifier.citation ********** en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/19777
dc.description.abstract For the first time in Sri Lanka, rectus femoris muscle has been used to characterize the mechanical properties of human soft tissues. These properties can be used to synthesis artificial tissue for bio engineering applications; if these biological soft tissues are to be replaced with polymer based biomaterial. Initially, uniaxial tensile test was performed on cadaveric samples obtained from national hospitals with the relevant ethical clearances. The obtained stress vs. strain graphs elucidates hyperelastic behaviour within non damage domain with initial J shape portion. It was also noticed that mechanical properties are highly non homogeneous as stress vs strain curves are different at different locations on the same cadaver. Variation of the “Damage” variable was also calculated to understand the degradation tendency of these biological materials under uniaxial tensile loading. ‘Snudden’ formula was used to obtain shear modulus of these cadaver samples through curve fitting technique. A numerical model was developed using commercially available FEA software ‘ABAQUS’; Based on the best fit analysis for the obtained stress vs stretch ratio graphs; ‘Polynomial Strain Energy Density Function with N=2” was used to simulate the muscle samples. This numerical model also includes damage parameter through the introduction of “Ductile Damage” of FEA and the parameters of the numerical model were all calibrated well with the experimental observation. en_US
dc.language.iso en en_US
dc.publisher Department of Materials Science and Engineering, University of Moratuwa. en_US
dc.subject Biological soft tissue en_US
dc.subject Uniaxial tensile test en_US
dc.subject Ductile damage en_US
dc.subject Finite element analysis en_US
dc.title Mechanical characterization of biological soft tissues under tensile loading - experimentation and numerical aspect en_US
dc.type Conference-Abstract en_US
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Materials Science and Engineering, University of Moratuwa en_US
dc.identifier.year 2022 en_US
dc.identifier.conference Materials Engineering Symposium on Innovations for Industry 2022 en_US
dc.identifier.place Moratuwa, Sri Lanka. en_US
dc.identifier.pgnos p. 4 en_US
dc.identifier.proceeding Towards Smart Society through Innovative Materials en_US
dc.identifier.email aravindag@uom.lk en_US


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