Showing papers in "International Journal of Impact Engineering in 2006"

TL;DR: In this article, the uniaxial compressive responses of silicone rubber (B452 and Sil8800) and pig skin have been measured over a wide range of strain rates (0.004 −4000 s−1).

TL;DR: Weerheijm et al. as mentioned in this paper used free surface velocity at the end of a cylindrical concrete sample to measure the tensile strength and specific fracture energy in spall experiments.

TL;DR: In this paper, the authors investigated the ballistic impact behavior of two-dimensional woven fabric composites using wave theory and different damage and energy absorbing mechanisms during a low-mass high-velocity impact caused by a propelling source.

TL;DR: In this paper, the impact and residual velocities of a hemispherical projectile were measured by using an explicit finite element code (ABAQUS) and the Johnson-Cook elasto-viscoplastic model was used to carry out the analysis.

TL;DR: In this paper, a numerical model of bird-strike tests on double sandwich panels made from AlSi7Mg0.5 aluminium foam core and aluminium AA2024 T3 cover plates was developed with the finite element program LS-DYNA.

TL;DR: A finite element analysis was conducted to study the influence of friction during ballistic impact of a rigid sphere onto a square fabric panel that was firmly clamped along its four edges as discussed by the authors, which indicated that friction dramatically affects the local fabric structure at the impact region by hindering the lateral mobility of principal yarns.

TL;DR: Quasi-static and dynamic axial crushing tests were performed on thin-walled square tubes and spot-welded top-hat sections made of high-strength steel grade DP800 as discussed by the authors.

TL;DR: A review of the field of water entry between 1929 and 2003 can be found in this paper, where the authors provide a summary of the major theoretical, experimental and numerical accomplishments in the field.

TL;DR: In this paper, a constitutive material law with a damping controlled glide process was used to describe the material flow behavior of the tested alloys under high strain rates loading with the assumption of domination of damping control.

TL;DR: In this article, the authors compared the energy absorption response of straight and tapered thin-walled rectangular tubes under oblique impact loading, for variations in the load angle, impact velocity and tube dimensions.

TL;DR: In this paper, the dynamic response of monolithic and sandwich beams made from stainless steel is determined by loading the end-clamped beams at mid-span with metal foam projectiles.

TL;DR: In this article, a Lagrangian particle method is used to handle large deformations and fracture of concrete structures under high dynamic loading conditions and large deformation effects, which can capture many important effects.

TL;DR: In this article, the authors conducted experiments with three diameters of concrete targets that had an average compressive strength of 23 MPa (3.3 kg) and 76.2 kg.

TL;DR: In this article, structural optimization of a car body with the intent to increase the crashworthiness of the car is discussed, with the goal of increasing the crash-worthiness of cars.

TL;DR: In this paper, a simple damage mechanics based progressive failure model for thin woven carbon composites under impact loading is presented, which can be used to model a wide range of problems from extreme events such as crash or blast, to birdstrike, when tearing and perforation are major failure mechanisms.

TL;DR: In this article, the impact resistance of polypropylene fiber-reinforced concrete (FRC) was investigated using the repeated drop-weight impact test recommended by ACI Committee 544.

TL;DR: In this paper, a Lagrangian approach is adopted, interfacing the ESI/Pam-Crash solver code with an automatic trial-and-error procedure for the elimination of the excessively distorted elements.

TL;DR: In this paper, two different and independent shock compression experiments have been performed in order to determine equation of state (EoS, Hugoniot) properties of concrete, and the experiments were performed in different laboratory locations but at the same time.

TL;DR: In this article, the energy absorption capability of the composite structures is much greater than the sum of the energy absorbed by the two components, the foam and the tube, and the results obtained will be presented as quasistatic and dynamic uniaxial compression and quasi-static bending and shear loading.

TL;DR: In this paper, an explicit finite element analysis (FEA) of a single abrasive particle impact on stainless steel 1.4301 (AISI 304) in abrasive water jet (AWJ) machining is presented.

TL;DR: In this article, a tensile crack softening model is coupled with the Johnson-Holmquist model to simulate the propagation of radial tensile cracks generated by the principal tensile stress.

TL;DR: In this paper, the behavior of a family of polymeric structural foams with various initial bulk densities (porosity levels) was experimentally investigated under quasistatic and high strain rate loading conditions.

TL;DR: In this article, the effect of using applicable strength and fracture models currently available in AUTODYN to replicate both room and elevated temperature target hole diameters is also examined, and it was found that the numerical simulations for both room-temperature and elevated-temperatures targets predict hole diameter that differ approximately 0.1-13% from the DRI empirical data, and that obtained with the University of Denver Research Institute's two-stage light gas gun.

TL;DR: In this paper, a bi-linear crack softening law and a strain rate-dependent law are implemented in the hydrocode AUTODYN to improve the accuracy of the numerical analyses for projectile and fragment impacts on concrete.

TL;DR: In this paper, a rectangular laminated architectural glazing subjected to simulated blast loading is analyzed and the results of the analytical models are compared with a three-dimensional nonlinear dynamic finite element analysis.

TL;DR: In this article, a plate specimen subjected to an underwater explosion is modeled as a gas bubble pulsation, and the deformation of the deforming plate is predicted as a function of geometric and material properties of the plate.

TL;DR: In this paper, a comparative review of material models for polymers with special focus on crashworthiness analysis is presented, and a short overview of suitable material laws for thermoplastics is given.

TL;DR: In this article, the effect of explosive and impact loading on geological media using the Livermore distinct element code (LDEC) was investigated, and it is confirmed that persistent joints lead to an underestimation of the impact energy needed to fill the tunnel systems with rubble.

TL;DR: In this article, the authors present an FE model of woven fabric that reflects the orthotropic properties of the fabric, the viscoelastic nature of the yarns, the crimping of yarns and yarn breakage.

TL;DR: In this paper, the Equivalent Single-degree-of-freedom (SDOF) method is used for dynamic analysis of reinforced concrete flexural members subjected to blast or ground-shock loading.