No abstract

No abstract

No abstract

In recent years, light-weight nano composite materials have been progressively employed in the aviation, defense, naval and automotive manufacturing applications owing to their outstanding mechanical and crashworthiness characteristics. In this regard, nano composite cylindrical tubes could be significantly utilized as energy absorbing elements for dissipating the impact energy during vehicle collisions. The present research study aimed to examine the lateral crashworthiness response of Multi-Walled Carbon Nano Tubes (MWCNT) filled epoxy composite (basalt fabric and glass fabric) tubes of three different inner diameters using quasi-static crushing experiments. Crushing profiles and crush force–deformation curves of all the recommended typical tube samples are computed and discussed elaborately. The results obtained revealed that better crashworthiness characteristics of MWCNT reinforced epoxy composite tubes with a larger diameter, were owing to more promising crushing modes occurring during lateral compression. It is also found that the lateral crashworthiness response of the MWCNT filled glass fabric epoxy composite tubes was marginally superior to that of the MWCNT filled basalt fabric epoxy composite tubes. However, both the recommended composite cylindrical tubes with nano-fillers might be employed as energy dissipating elements in modern vehicles.

The current article discusses the effect of a small heating strip placed inside the porous medium enclosed in a square cavity. The left vertical surface is maintained at hot temperature and right vertical surface remains at cold temperature that allows the heat to be dissipated outside the system. The other two surfaces of the cavity are maintained adiabatic. A comparison is drawn between the present work and the work where the left vertical wall is maintained at cold temperature. The different parameters such as length of the heating strip inside the domain, Rayleigh number and Radiation parameters are discussed with respect to the square porous domain.