Microstructure-dictated resistance properties of some Indian dinosaur eggshells: finite element modeling
(2005) Microstructure-dictated resistance properties of some Indian dinosaur eggshells: finite element modeling. Paleobiology 31(2):pp. 315-323.
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Abstract
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
| Item Type: | Journal Article |
|---|---|
| Status: | Published |
| Keywords: | dinosaurs, Finite Element Modelling,Megaloolithus cylindricus |
| Subjects: | 290000 Engineering and Technology > 291500 Biomedical Engineering > 291504 Biomechanical Engineering 270000 Biological Sciences > 270700 Ecology and Evolution > 270799 Ecology and Evolution not elsewhere classified 270000 Biological Sciences > 270700 Ecology and Evolution > 270705 Palaeoecology 260000 Earth Sciences > 260100 Geology > 260112 Palaeontology |
| ID Code: | 7837 |
| Deposited By: | Mishra, Sanjay |
| Deposited On: | 17 May 2007 |
| Alternative Locations: | http://dx.doi.org/10.1666/0094-8373(2005)031[0315:MRPOSI]2.0.CO;2, http://www.psjournals.org |
| Copyright Owner: | Copyright 2005 The Paleontological Society. Details at - http://www.paleosoc.org, http://www.psjournals.org |
| Additional Information: | For more information, please contact the author: sk.mishra@qut.edu.au |