This paper discusses an experiential training and education program designed to improve the response literacy in the event of a large-scale earthquake in the Shinjuku station area in Tokyo, which is a central business district representative of Japan. The features of the Shinjuku station area are described, and the activities of the Shinjuku Station Area Disaster Response Measure Committee, made up of businesses and other concerns located in the vicinity of Shinjuku station, as well as the education and training program implemented by the committee to train personnel are introduced. An overview is given of the seminars and workshops given as part of the education and training program in fiscal 2013, targeted at employees of businesses in charge of disaster response. The report then describes the Comprehensive Disaster Preparedness Drill, which was conducted for the purpose of enabling the participants of the seminars and workshops to practice the skills and techniques for disaster response they had acquired, and conducting a comprehensive exercise on disaster response activities within businesses or the area. Finally, the results of a questionnaire survey conducted on the drill participants are discussed.
Operators of V-bending process have sometimes been injured because of broken piece of a die. To prevent this accident, a structure of the die that is tough to break is required. According to the previous study [1], introducing a hole in the V-bending die reduced stresses at the bottom of Vgroove. Therefore, parametric study of a hole in a structure is necessary to find an appropriate design of the structure. However, parametric study of a structure with a hole using conventional FEM has difficulty in remeshing. Using coupling-matrix-free iterative s-version FEM [2], a mesh of the whole analysis domain and a mesh in the vicinity of the hole can be created separately as a global mesh and a local mesh, respectively. In this study, we proposed a parametric analysis system to analyze the die with a hole for V-bending process, and we evaluated the results in terms of fracture mechanics. Fracture modes we considered were fatigue fracture and brittle fracture. We evaluated fatigue fracture by stresses and brittle fracture by stress intensity factors. The stress intensity factors were calculated by a three-dimensional virtual crack closure-integral method (VCCM) [3]. In the present parametric analysis system with the coupling-matrix-free iterative s-version FEM, we can analyze the V-bending die with a hole only by moving the coordinates of the local mesh. Thus, this system makes a parametric analysis possible to be executed automatically by a single command. As a result of the parametric analysis of the die for V-bending die with a hole, both stresses at the bottom of Vgroove and stress intensity factors at the deepest point of the crack were reduced.
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