Abstract: The development ofshale gas involves two critical processes including fracturing andtransportation. To realize reticular fractures in the shale layerof multi-phase under more than 2000 m subjected to complexgeo-stress and to collect the free and adsorbed gases encapsulatedin the layer, we face many ...
Abstract: In this paper, a brief review of the current advances of the homotopy analysis method (HAM) in theory and applications is given. The HAM is an analytic approximation method for highly nonlinear problems. Traditionally, perturbation methods were widely used. However, perturbation methods are strongly...
Abstract: Micro/nano-channel mechanical resonators have ultra-high resonance frequency, quality factor, and sensitivity in liquid environment. Hence they are usually used for high-precision detection and characterization in liquid environments. These resonators have broad application prospects in the fields o...
Abstract: Made by high-density metals, long-rod penetrators have excellent performances on penetration and perforation when launched at hypervelocities around 1.5$\sim $3.0km/s. Due to their important background in the military application, long-rod penetration at hypervelocity has become an active research f...
Abstract: Interface Defeat, which can effectively defeat the long-rod projectile (LRP), is a specific phenomenon of ceramic armor. Studies on this area have been conducted for the last three decades both at home and abroad proving that delaying dwell time or increasing interface defeat/penetration transition ...
Abstract: Cavitation is an important kind of complex multiphase flow with strong three-dimensional characteristic and high unsteadiness, which frequently occurred in a wide range of fluid machinery, marine propulsor, and hydraulic engineering and can generate the destructive behavior. Cavitation has been one ...
Abstract: For the numerical computation of unsteady flow, the computational accuracy and efficiency would have a significant difference with different time discretization methods. This paper based on the summarize of the development situation of time discretization methods at present, briefly introduces the t...
Abstract: First, the studying progress of domestic and foreign scholars on analytical dynamics of continuum is reviewed. This paper mainly studies the problem of applying the Lagrange equation to the continuum dynamics. By using Lagrange-Hamilton system, Lagrange equations and their applications are investiga...
Abstract: Finite element (FE) analysis is extensively applied in practical engineering. However, FE model usually differs much from actual engineering structures due to modeling errors caused by meshing scales, boundary conditions, and material properties. Therefore an FE model has to be modified or updated b...
Abstract: Generally, peridynamics is a theory focusing on the evolution of a physical system, which is based on the assumption that each material point interacts with the other material points within a certain domain through non-contact or nonlocal interactions. It provides a unified mathematical framework fo...
Abstract: Based on strategy report for 2016--2020 of the department of mathematics and physics of NSFC and the series of research reports on the development of the disciplines-mechanics 2016--2015: China and World, the authors introduce funding of the National Natural Science Foundation in the discipline of m...
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