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| 1 | Experimental investigation of high temperature thermal contact resistance with interface material显示文摘Thermal contact resistance plays a very important role in heat transfer efficiency and thermomechanical coupling response between two materials,and a common method to reduce the thermal contact resistance is to fill a soft interface material between these two materials.A testing system of high temperature thermal contact resistance based on INSTRON 8874 is established in the present paper,which can achieve 600 C at the interface.Based on this system,the thermal contact resistance between superalloy GH600 material and three-dimensional braid C/C composite material is experimentally investigated,under different interface pressures,interface roughnesses and temperatures,respectively.At the same time,the mechanism of reducing the thermal contact resistance with carbon fiber sheet as interface material is experimentally investigated.Results show that the present testing system is feasible in the experimental research of high temperature thermal contact resistance. | Xiaoping Zheng1,Donghuan Liu,2,3 Dong Wei,4 and Xinchun Shang 2,3 1) Applied Mechanics Laboratory,Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China 2) Department of Applied Mechanics,University of Science & Technology Beijing,Beijing 100083,China 3) National Center for Materials Service Safety,University of Science & Technology Beijing,Beijing 100083,China 4) China Aerodynamics Research and Development Center,Mianyang 621000,China | 2011 | Theoretical & Applied Mechanics Letters2011，1，5： | 3 |
| 2 | CAVITATION IN HOOKEAN ELASTIC MEMBRANES显示文摘An exact solution to cavitation is found in tension of a class of Cauchy elastic membranes.The constitutive relationship of materials is based on Hookean elastic law and finite logarithmic strain mea-sure.A variable transformation is used in solving the two-point boundary-value problem of nonlinear ordinarydifferential equation.A simple formula to calculate the critical stretch for cavitation is derived.As the nu-merical results,the bifurcation curves describing void nucleation and suddenly rapidly growth of the cavityare obtained.The boundary layers of displacements and stresses near the cavity wall are observed.The cata-strophic transition from homogeneous to cavitated deformation and the jumping of stress distribution are dis-cussed.The result of the energy comparison shows the cavitated deformation has lower energy than the homo-geneous one,thus the state of cavitated deformation is relatively stable.All investigations illustrate that cavi-tation reflects a local behavior of materials. | Shang Xinchun Cheng Changjun | 2002 | Acta Mechanica Solida Sinica2002，15，1： | 2 |
| 3 | A seepage-stress coupled analysis of seabed deformation induced by the decomposition of gas hydrate显示文摘 | Zhenwei zhao Xinchun shang | 2011 | Intemafional Journal Computational Science and Engineering2011，6，4： | 1 |
| 4 | Exact solutions for compressible hyperelastic materials显示文摘 | Shang Xinchun Cheng Changjun | 2002 | Int J Eng Sci2002，39，： | 1 |
| 5 | Investigation on nonlinear multi-scale effects of unsteady flow in hydraulic fractured horizontal shale gas wells显示文摘A unified mathematical model is established to simulate the nonlinear unsteady percolation of shale gas with the consideration of the nonlinear multi-scale effects such as slippage, diffusion, and desorption. The continuous inhomogeneous models of equivalent porosity and permeability are proposed for the whole shale gas reservoir including the hydraulic fracture, the micro-fracture, and the matrix regions. The corresponding semi-analytical method is developed by transforming the nonlinear partial differential governing equation into the integral equation and the numerical discretization. The nonlinear multi-scale effects of slippage and diffusion and the pressure dependent effect of desorption on the shale gas production are investigated. | Jiaxuan LIU Xinchun SHANG Weiyao ZHU | 2018 | Applied Mathematics and Mechanics(English Edition)2018，39，2： | 1 |
| 6 | Analysis on nonlinear effect of unsteady percolation in the inhomogeneous shale gas reservoir显示文摘The nonlinear effects of unsteady multi-scale shale gas percolation,such as desorption,slippage,diffusion,pressure-dependent viscosity,and compressibility,are investigated by numerical simulation.A new general mathematical model of the problem is built,in which the Gaussian distribution is used to describe the inhomogeneous intrinsic permeability.Based on the Boltzmann transformation,an efficient semi-analytical method is proposed.The problem is then converted into a nonlinear equation in an integral form for the pressure field,and a related explicit iteration scheme is constructed by numerical discretization.The validation examples show that the proposed method has good convergence,and the simulation results also agree well with the results obtained from both numerical and actual data of two vertical fractured test wells in the literature.Desorption,slippage,and diffusion have significant influence on shale gas flows.The accuracy of the usual technique that the product of viscosity and compressibility is approximated as its value at the average formation pressure is examined. | Xinchun SHANG Jiaxuan LIU Xuhua GAO Weiyao ZHU | 2020 | Applied Mathematics and Mechanics(English Edition)2020，41，1： | 1 |
| 7 | Analysis for temperature and pressure fields in process of hydrate dissociation by depressurization 显示文摘 | Zhenwei Zhao Xinchun Shang | 2010 | International Journal for Numerical and Analytical Methods in Geomechanics2010，，3： | 1 |
| 8 | Investigation of catastrophic ground collapse in Xingtai gypsum mines inChina显示文摘 | WANG Jin'an SHANG Xinchun MA Haitao | 2008 | International Journal of Rock Mechanics Mining Sciences2008，45，8： | 1 |
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