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| 1 | Damage evolution and dynamic response of cement asphalt mortar layer of slab track under vehicle dynamic load显示文摘The damage evolution and dynamic performance of a cement asphalt(CA)mortar layer of slab track subjected to vehicle dynamic load is investigated in this paper.Initially,a statistical damage constitutive model for the CA mortar layer is developed using continuous damage mechanics and probability theory.In this model,the strength of the CA mortar elements is treated as a random variable,which follows the Weibull distribution.The inclusion of strain rate dependence affords considering its influence on the damage development and the transition between viscosity and elasticity.Comparisons with experimental data support the reliability of the model.A three-dimensional finite element(FE)model of a slab track is then created with the commercial software ABAQUS,where the devised model for the CA mortar is implemented as a user-defined material subroutine.Finally,a vertical vehicle model is coupled with the FE model of the slab track,through the wheel-rail contact forces,based on the nonlinear Hertzian contact theory.The evolution of the damage and of the dynamic performance of the CA mortar layer with various initial damage is investigated under the train and track interaction.The analysis indicates that the proposed model is capable of predicting the damage evolution of the CA mortar layer exposed to vehicle dynamic load.The dynamic compressive strain,the strain rate,and the induced damage increase significantly with an increase in the initial damage,whereas the dynamic compressive stress exhibits a sharp decrease with the increasing initial damage.Also,it is found that the strain rate dependence significantly influences the damage evolution and the dynamic behavior of the CA mortar layer. | ZHU ShengYang FU Qiang CAI ChengBiao SPANOS Pol D | 2014 | Science China(Technological Sciences)2014，57，10： | 19 |
| 2 | A fuel dryness index for grassland fire danger assessment 显示文摘 | SNYDER R L SPANO D DUCE P | 2006 | Agricultural and Forest Meteorology2006，139，： | 1 |
| 3 | Speculation on whether a vaccine against cryptosporidiosis is a reality or fantasy 显示文摘 | De Graaf D C Spano F Petry F | 1999 | Int J Parasitol1999，29，8： | 1 |
| 4 | Speculation on whether a vaccine against cryptosporidiosis is a reality or fantasy显示文摘 | GRAAF D SPANO F PETRY F | 1999 | Int J Parasitol1999，29，8： | 1 |
| 5 | Priority of resection in concomitant abdominal aortic aneuryam (AAA) and colorectal cancer (CRC):review of the literature and experience of our clinic显示文摘 | Kiskinis D Spanos C Melas N | 2004 | Tech Coloprectol2004，，： | 1 |
| 6 | A multiscale Monte Carlo finite element method for determining mechanical properties of polymer nanocompoaites显示文摘 | Spanos P D Kontsos A | 2008 | Probabillstic Engineering Mechanics2008，23，： | 1 |
| 7 | Adipokines, insulin resistance and hyperandrogene-mia in obese patients with polycystic ovary syndrome:cross-sectional correlations and the effects of weight loss显示文摘 | Spanos N Tziomalos K Macut D | 2012 | Obes Facts2012，5，4： | 1 |
| 8 | Impact of EGFR expression on colorectal cancer patient prognosis and survival 显示文摘 | Spano J P Lagorce C Atlan D | 2005 | Ann Oncol2005，16，1： | 1 |
| 9 | Experimental control of chaos显示文摘 | Ditto W D Rauseo S N Spano M L | 1990 | Phys Rev Lett1990，65，26： | 1 |
| 10 | Coupled analysis of a Spar structure: Monte Carlo and statistical linearization solutions显示文摘 | Spanos P D | 2005 | Journal of Offshore Mechanics and Arctic Engineer- ing Transactions of the ASME2005，127，1： | 1 |
| 11 | Effects of reproductive and demographic changes on breast cancer incidence in China:a mod- eling analysis显示文摘 | Linos E Spanos D Rosner BA | 2008 | JNCI2008，100，19： | 1 |
| 12 | Nasopharyngeal carcinomas: an update显示文摘 | Spano JP Busson P Atlan D | 2003 | Eur J Cancer2003，39，： | 1 |
| 13 | Stochastic finite element expansion for random media 显示文摘 | Spanos P D Ghanem R | 1989 | Journal of engineering mechanics1989，115，5： | 1 |
| 14 | Recursive simulation of stationary multivariate random process 显示文摘 | MIGNOLET P M SPANOS P D | 1987 | Journal of Applied Mechanics1987，54，7： | 1 |
| 15 | Experimental control of chaos 显示文摘 | Ditto W D Rauseo S N Spano M L | 1990 | Phys Rev Lett1990，65，： | 1 |
| 16 | Harmonic wave- lets based statistical linearization for response evolu- tionary power spectrum determination 显示文摘 | Spanos P D Kougioumtzoglou I A | 2012 | Probabi- listic Engineering Mechanics2012，27，1： | 1 |
| 17 | Random vibration and statistical linearization显示文摘 | Robert J B Spanos P D | 2003 | New York: Dover Publications2003，，： | 1 |
| 18 | Asynchronous Distributed Averaging on Communication Networks 显示文摘 | Mehyar M Spanos D Pongsajapan J | 2007 | IEEE/ACM Tran- sactions on Networking2007，15，3： | 1 |
| 19 | A- synchronous distributed averaging on communication net- works 显示文摘 | MEHYAR M SPANOS D PONGSAJAPAN J | 2007 | IEEE/ACM Transactions on Networking2007，15，3： | 1 |
| 20 | Stochastic Finite Element Expansions for Random Media显示文摘 | Spanos P D Ghanem R | 1989 | J of Eng Mech1989，115，5： | 1 |
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