Microstructure-dictated resistance properties of some Indian dinosaur eggshells: finite element modeling
Srivastava, Rahul, Sahni, Ashok, Jafar, Syed A., & Mishra, Sanjay K. (2005) Microstructure-dictated resistance properties of some Indian dinosaur eggshells: finite element modeling. Paleobiology, 31(2), pp. 315-323.
Finite element modeling (FEM) has been used to evaluate microstructure-controlled stability of selected eggshells of Indian dinosaurs. Our study suggests that under static load the eggshell microstructure of Megaloolithus cylindricus displays a low magnitude of tensile stress over most of the spherolith. The magnitude of this tensile stress is lower than that displayed in M. jabalpurensis, M. baghensis, and Subtiliolithus kachchhensis. In M. cylindricus, a shell thickness matching the length of the spheroliths prevents the failure of eggshells, whereas in M. jabalpurensis and M. baghensis, which have thinner shells, the development of additional subspheroliths compensates for the relatively higher magnitude of tensile stresses. Extremely thin eggshell in S. kachchhensis shows a still higher magnitude of tensile stresses, thereby making it prone to cracking, but the propagation of cracks is apparently checked and stability reinforced by wider spacing of pore canals
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|Item Type:||Journal Article|
|Additional Information:||For more information, please contact the author: firstname.lastname@example.org|
|Keywords:||dinosaurs, Finite Element Modelling, Megaloolithus cylindricus|
|Subjects:||Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomechanical Engineering (090302)|
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > EVOLUTIONARY BIOLOGY (060300) > Evolutionary Biology not elsewhere classified (060399)
Australian and New Zealand Standard Research Classification > BIOLOGICAL SCIENCES (060000) > ECOLOGY (060200) > Palaeoecology (060206)
Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > GEOLOGY (040300) > Palaeontology (incl. Palynology) (040308)
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering|
Current > Institutes > Institute of Health and Biomedical Innovation
|Copyright Owner:||Copyright 2005 The Paleontological Society. Details at - http://www.paleosoc.org, http://www.psjournals.org|
|Deposited On:||17 May 2007|
|Last Modified:||29 Feb 2012 23:29|
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