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朴甲渟 大田工業專門大學 1980 論文集 Vol.27 No.-
(1) 삼축의 수직응력과 전단응력의 임의각에서 합성은 σ_n=1/2(σ_x+σ_y)+1/2(σ_x+σ_y)cos 2Φ-て_x_y sin 2Φ, て=1/2(σ_x+σ_y) sin 2Φ+て_x_y cos 2Φ으로 되므로 최대치는 식(3)과 식(4)와 같이 됨을 Mohr의 응력엔에서 직접 구할수있음은 대단히 간편함을 알수 있다. 또 두 수직응력만의 합성은 て=0인때 이므로 바로 식(1)과 식(2)로 됨을 알수 있다. 만일 σ_x만이 작용할때는 σ_y=0인때 이므로 σ_n=σ_x cos^2 Φ, て=1/2σ_x sin 2Φ가 되어 그림3의 (d)와 같은 상태의 응력엔이 된다. 그러므로 Φ=0˚에서 σ_n=σ_x로 되어 법선응력이 최대로 되며, Φ=90˚에서 σ_n=0이 된다. 또 Φ=0˚에서 て=0, Φ=90˚에서 て=0이되며, 전단응력 て가 최대가 되기 위해서는 Φ=45˚에서 て_max=1/2σ_가된다.
崔俊植,朴甲渟,趙炳先 大田工業專門大學 1980 論文集 Vol.27 No.-
The improvement of on the standard of living of rural houses was one of the most things which we, farmers had wanted. Since the farmers took an unreasonable and premodern living in the past, their organization of consciousness was twisted. The young, farmers dazzled by a gay of city life abandoned their home which they had kept generation after geueration, and then they were thoughtlessly flocking to the crowded city. However, they are increasing their incomes more and more through the project such as the New Community Movement, which modernizes a rural community by self-help. The improvement on the settlement structure of rural houses is positively proceeding by the goverment's helping, then the standard of living of a rural community came near that of an urban community . After investing the betterment on the settlement structure of rural houses, the space as well as the main standard of living was also functionally surveyed and examined. In this thesis, both the supplementary way and the Betterment were studied, tested in the future.