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자료유형
학술저널
저자정보
저널정보
육군사관학교 화랑대연구소 한국군사학논집 한국군사학논집 제70권 제1호
발행연도
2014.2
수록면
175 - 189 (15page)

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In this paper, FE analysis was used to simulate the effects of loads of MOVs(Military Owned Vehicles) on the true stress-strain curves to a manhole cover. The research was carried out with a three-dimensional (3-D) rectangular geometry of manhole cover. To simulate the loads and its effect to manhole cover, we used the FEM(Finite Element Method). As a loading conditions, the distributed loads were considered, which were 10, 15, 20, 24 tons. Also, directions of tire were contemplated (e.g. longitudinal and horizontal directions). As the loads below 20 ton were applied, the manhole deformed in the elastic region, and when the loads were removed, the form of manhole was returned to original state. However, the loads above the 20 ton were applied, the material was transformed as a plastic deformation. Moreover, we found that the materials would occur the plastic collapse when the loads about 35 ~ 38 ton were applied. The results of present study can be used to predict the effect of loads of MOVs to manhole during maneuvering on the roads.

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