نوع مقاله : مقاله پژوهشی
نویسندگان
1 گروه مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه دامغان، دامغان، ایران
2 دانشکده مهندسی مکانیک و مکاترونیک، دانشگاه صنعتی شاهرود، شاهرود، ایران
3 کارشناسی مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه دامغان، دامغان، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
In the present study, the behavior of CNG tanks of the first to fourth types of vehicles was investigated in Abaqus finite element software under the influence of internal pressure and external explosive load. First, in order to ensure the non-rupture of these tanks under internal pressure, the hydrostatic pressure about 200 Bar was applied and the failure index of these tanks was examined using the Tsai-Hill criterion. Then, to evaluate the behavior of tanks under the external explosive loading, the CONWEP algorithm was used. For this purpose, TNT was used at three explosive points and three different explosion discharge values. In explosion simulation, the amount of damage to the metal and composite areas of the tanks was investigated using Johnson-Cook and Hashin criteria, respectively. The results of this study show that the fourth type tank has the highest strength against internal hydrostatic pressure compared to other tanks and can withstand up to 610 bar pressure. In addition, the third type tank has the highest safety against external explosion waves. Comparison of the second to fourth type composite tanks results shows that the presence of steel liner under the composite layer has a significant effect on the strength of the tank against impact or explosion. The first type tank despite the high weight has good resistance to internal pressure as well as explosive wave.
کلیدواژه‌ها [English]
)