نوع مقاله : مقاله مکانیک
نویسندگان
1 استادیار، دانشکده مهندسی مکانیک، دانشگاه صنعتی سیرجان
2 دانشکده مهندسی مکانیک، دانشگاه صنعتی سیرجان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In this paper, the energy absorption capability of grooved tubes made of precipitation-hardened aluminum with circular cross-section under axial crushing was investigated. First, the process was modeled using the ABAQUS FE simulation, and the numerical results were verified compared to the experiments. Afterward, 42 experiments were designed via the full factorial design of experiment and performed by simulation. The effect of grooves' dimensions, number, and pattern on the initial peak force (IPF), specific energy absorption (SEA), and crushing force efficiency (CFE) were investigated. In addition, the contribution of the input parameters was determined using the analysis of variance. The obtained results illustrated that the number and width of the grooves are the most important parameters for the IPF (number: 71.29% and width: 27.48% of contribution), SEA (number: 37.10% and width: 54.26% of contribution), and CFE (number: 73.19% and width: 20.52% of contribution), respectively, and the groove pattern has no noticeable effect on the mentioned properties.
کلیدواژهها [English]
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