نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی مکانیک، واحد بندرانزلی، دانشگاه آزاد اسلامی، بندر انزلی، ایران.
2 گروه مهندسی مکانیک، واحد بندرانزلی، دانشگاه آزاد اسلامی، بندر انزلی، ایران
3 گروه مهندسی مکانیک، واحد رشت، دانشگاه آزاد اسلامی، رشت، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Dimensional analysis methods have shortcomings in predicting the behavior of full-scale samples using small-scale results due to non-linearity of behavior, loading, or changes in material type, the inability to simultaneously predict two parameters with the same unit, and a limited number of independent degrees of freedom are independent. Recently, a new theory called Finite Similitude has been proposed to solve these problems, and in this article, using this theory to analyze the prediction of the dynamic behavior of concrete beams using the results of concrete beams on a smaller scale and beams with similar behavior to concrete (plaster-stone) under dynamic impact loading has been discussed. The predicted results such as force, displacement, energy, and time show that the dimensional analysis of the results with different materials is not accurate enough and in some cases, the difference in the results is more than 50%. However, with the finite similitude method, the behavior of full-scale concrete beams can be predicted by using small-scale plaster-stone samples with less cost, reduced construction time, and high accuracy, so that the error percentage in dynamic analysis in all samples is almost less than 10% was achieved.
کلیدواژه‌ها [English]
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