Finite Element Of Human Spine CAD Model Analysis

Mohamad Shahrul Effendy, Kosnan (2010) Finite Element Of Human Spine CAD Model Analysis. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

In industry, there are many major industrial accidents. One of these is lower back pain. These injuries are responsible for the bulk of compensation money spent. Statistically problem in lower back pain of workers will affect the productivity of work. The activities such as lifting, pulling, pushing and sitting in the long period of time will cause low back pain problem. In industrial, this can be avoided by designing proper ergonomic workplace. There is a need to devise way to reduce the incidence and prevalence of back pain disorders, especially in the workplace. A proper investigation is done to a spine regarding this problem. Usually there is two types of experiment involve in analyzing the spine which are: 1. Using vitro models (cadaveric and mathematical) 2. Using investigation of software In this thesis, Finite Element Method used CAD model to be analyzed. Finite Element is the best method can be used to visualize stress distribution on the lumbar spine. The finite element method of numerical analysis has enabled researchers to solve many problems. Continuous advancements in numerical technique as well as computer technology have made the finite element method a versatile tool for biomechanics application. In this paper, the Finite Element Analysis (FEA) is done in Patran Nastran software. The lumbar spine model is generated in Solidworks software so that it eased the exporting procedure to send the model of lumbar spine. From the FEA, it can conclude that the end plate at 5th lumbar is experiencing maximum stress. 4th and 5th lumbar also affected by the various load applied. To avoid the low back pain problem, a person is advisable to maintain good posture in sitting, standing, walking, lifting object and other daily activities.

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