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논문 기본 정보

자료유형
학술대회자료
저자정보
Jinhee Park (Seoul National University) Yun-Ja Nam (Seoul National University)
저널정보
대한인간공학회 대한인간공학회 학술대회논문집 2017 대한인간공학회 추계학술대회
발행연도
2017.11
수록면
205 - 219 (15page)

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초록· 키워드

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Objective: This study identifies characteristics and accurate location of falls and fracture that are applicable to protective clothing patterns, in terms protective clothing development. Background: The research also aims to devise a three-dimensional simulation method by using the Finite Element Model(FEM), in order to substitute the Falling Impact Experiment that uses actual human body as experimental subjects. Method: Targeting the right side of the body from the waist to knee, the Finite Element Modeling for impact simulation consists of eight solid-type skeletal frames, two cartlages, and one soft tissue. All constitutive models are tighly combined in structure without any interference or gaps in between one another. After setting contact information and physical properties, the Finite Element Model, composed of 2.2 million nodes and 1.2 million elements, was developed by applying Fine-sized Tetra mesh. The Finite Element Model is used in the simluation of giving impact to various external parts of human body with point-typed force, and comparing the level of stress given on the intertrochanteric hip joint and the neck. Results: Simulation results show that when it comes to the back and front of the human body, the pelvis, hipbone, central parts of femur are shocked with stress more severely than the intertrochanteric hip joint and the neck. The greatest stress on the intertrochanteric hip joint and the neck was found to be given on the central parts of femur and the hip joint on the side parts of the human body. Conclusion: Likewise, hip joint protective equipments were found to work better when located at the side parts of the hip joint, as similar results were shown in previous studies. However, it is also discovered that the accruate positions on the pattern can be located on the side area between the hip circumference and the horizontal buttocks circumference. In addition, the protection area is found to be wider and protecting the side parts of the central femur is also found to be necessary for pads designed for lower bone density compared to those for normal bone density. Application: The contribution of this study is that it introduces a new virtual experiment for development of functional clothing for preventing fracture using virtual human body, going beyond the research phase of three-dimensional automatic measurement and information analysis on form and size.

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ABSTRACT
1. Introduction
2. Method
3. Results
4. Conclusion
References

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