Abstract Wire-explosion impact forming (WEIF) is a process based on coupled effect of gaseous, liquid, and solid media, the experimental work alone not sufficient to properly show this complex process. To understand plastic deformation behavior workpiece under action shockwave load, WEIF AA5052 tubes were simulated in LS-DYNA by considering fluid/structure interactions. Then, stress, displaceme...

The main objective of this research is to improvethe design and performance of the polyurethane foam-filled thin-walled aluminum grooved circular tubes using multi-response optimization (MRO) technique. The tubes are shaped with the inner and the outer circular grooves at different positions along the axis. For this aim, several numerical simulations using ABAQUS finite element explicit code ar...

abstractin this paper, we investigate effect of fe–intermetallic compounds on plastic deformation of closed-cell composite aluminum foam as filler of thin-walled tubes. however, deformation of the aluminum foam-filled thin-walled tubes as crushed-box will be presented in part (ii). composite foams of alsi7sic3 and alsi7sic3-(fe) as closed cell were synthesized by powder metallurgy foaming metho...

Aluminum was a type of hard and soft material, because its high toughness, it easy to generate grinding heat, so polishing relatively difficult polish fire. has been used as processing material due excellent properties such lightness, corrosion resistance, non-magnetism, alloy strength, electrical conductivity, weight, heat dissipation. However, some problems arose when aluminum tubes. Thereby,...

This study investigate the characterization of aluminum barrier laminate tubes produced using plastic materials and effect change in technical properties raw used production on stiffness tube material. Characterization measurements were taken by dynamic scattering calorimetric thermograms young modulus values obtained tensilemeter for stiffness. By comparing with reference from market, it is ai...

a 2-year period a tenacious film formed. Daily free passage of sponge rubber balls through the tubing only removed the loose surface biofouling layer and was inadequate as a countermeasure in both titanium and aluminum alloy tubes. Chlorination at 0.05, 0.07, and 0.10 mg liter-' for 1 h day'1 lowered biofouling rates. Only at 0.10 mg liter-' was chlorine adequate over a 1-year period to keep fi...

The fluid-structure interaction simulation of detonationand shock-waveloaded fracturing thin-walled structures requires numerical methods that can cope with large deformations as well as topology changes. We present a robust level-set-based approach that integrates a Lagrangian thin shell finite element solver with fracture and fragmentation capabilities with an Eulerian Cartesian detonation so...

The fluid-structure interaction simulation of shockand detonation-loaded thin-walled structures requires numerical methods that can cope with large deformations as well as local topology changes. We present a robust level-set-based approach that integrates a Lagrangian thin-shell finite element solver with fracture and fragmentation capabilities and an Eulerian Cartesian fluid solver with optio...

Radiometric measurements of the microwave emissivity of foam were conducted in May 2000 at the Naval Research Laboratory’s Chesapeake Bay Detachment using radiometers operating at 10.8 and 36.5 GHz. Horizontal and vertical polarization measurements were made at 36.5 GHz; horizontal, vertical, +45, 45, left circular, and right circular polarization measurements were obtained at 10.8 GHz. Surface...