Simulation of a linear buckling phenomena in the study of scoliosis spine disorder
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Date
2017-06
Authors
Uma Putra A/L Silver Raju
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Abstract
Scoliosis is a medical condition where the spine is laterally curved more than 10 degreed, forming a āSā or āCā shape instead of a usual straight shape. Scoliosis affects almost 3% of the population and more than 80 % of the cases of scoliosis is idiopathic, which means the cause the unknown. From a biological perspective, scoliosis is mainly attributed to the growth of the spine itself. This differs from the view in engineering fields where the spine is assumed to be a column which buckles under axial compressive loadings. Three simple spine models (rectangular columns) were constructed to model the behaviour of spine when it is subjected to axial compressive loadings. The critical load for the spine is calculated analytically. Graphs were constructed to show the correlation between increasing buckling coefficients (buckling load factor) and parameters used to model the spine (spine dimensions). Buckling modes and buckling coefficients are used to prove that scoliosis obeys the linear buckling phenomenon. By proving that scoliosis obeys the linear buckling phenomenon, future research can be done to reduce the effect the buckling of the spine or in other words, to reduce the curvature progress of the spine.