Abstract: Characteristics such as light weight and high strength, have made composite one of the most promising engineering materials, and its damage performance under impact has attracted many researchers’ attention. The low-velocity impact test based on the free-ball impact device was employed to study the ...
Abstract: The problem of free-edges in three-dimensional elasticity is always a difficult one. The conditions that both normal stress and shear stress on the free edges equal zero are satisfied very difficultly. Based on the three-dimensional fundamental equations of elasticity and the state space method, the...
Abstract: In order to accurately predict the stress/strain distribution along the thickness direction, which is very important to the interface cracking of the composite sandwich laminate of moderate thickness, the small inherent parameter was used to rigidly decouple the original 3D plate into 1D analysis al...
Abstract: A new Rosenbrocktype exponential discontinuous Galerkin method was developed. The method used discontinuous Galerkin method to discretize in space, while Rosenbrocktype exponential integrator method in time. Therefore, it not only has high accuracy to discretize in space, but also has excellent ab...
Abstract: A loosely-coupled algorithm for fluid-structure interaction based on arbitrary Lagrangian Eulerian(ALE) finite element method was proposed. The semi-implicit four-step fractional finite element method was extended to solve Navier-Stokes equations of ALE description, where the streamline upwind/Petro...
Abstract: The probability distribution of contact force, anisotropy of contact force network, the friction influence on macro rheological and micro force chain distribution in dense granular flow between shearing parallel plates were discussed. A discrete element numerical analysis model was established for s...
Abstract: Memristor is a newly prototyped nonlinear circuit device. Its value is not unique and changes according to the value of the magnitude and polarity of the voltage applied to it. Due to this feature, the memristor has the function of memory and broad potential applications of memristors have been repo...
Abstract: A precise iterative refinement of solution for ill-conditioned systems of linear algebraic equations was proposed. First, the ill-conditioned matrix was improved through introduction of a small parametrr, and then via the precise integration method, a highly precise method was provided for the inver...
Abstract: A design concept of using multilayer structure for the top face-sheet of a lightweight thermal protection system was proposed. To obtain the different structural performances, three schemes were considered according to the different stacking orders of two kinds of insulation materials. With the mech...
Abstract: The quadratically consistent 3-point integration method (QC3) was extended to the meshfree analysis of heat conduction problem in steady state. Numerical results show that, in comparison with the standard triangle integration method and the existing 1-point integration method which only satisfies th...
Abstract: With the effects of shear deformation of slender beams considered in Timoshenko beam theory, a new method of obtaining Timoshenko’s shear coefficients was derived. First, the exact solutions of the cross section’s shear stress distribution of the cantilever beam under the action of pure bending were...
Abstract: Weak resonant double Hopf bifurcation of nvan der Pol oscillators with delay coupling was investigated. With an extended method of multiple scales, the complex amplitude equations were obtained. With the complex amplitudes expressed in a polar form, the complex amplitude equations were reduced to ...
