000			a
999			_c8531 _d8531
003			OSt
005			20190316094626.0
008			190316b xxu||||| |||| 00| 0 eng d
040			_aAIKTC-KRRC _cAIKTC-KRRC
100			_98070 _a Chen, Shoukai
245			_aStudy on the evolutionary model and structural simulation of the freeze-thaw damage of cemented sand and gravel (CSG)
250			_aVol. 99(4), December
260			_aKolkata _bSpringer _c2018
300			_a699-704p.
520			_aTo investigate the material damage and stress state of cemented sand and gravel (CSG) under freeze–thaw environment, this paper proposed an evolutionary model by combining the damage theory of porous materials and the mechanism of deterioration of mechanical properties of CSG under the action of freeze–thaw cycles, and by considering the age effect for the freeze–thaw damage of CSG. Regression analysis showed that this model fitted well with the test results. In addition, this model was applied to simulate the 3D non-steady state temperature field and stress field of a CSG dam. The model comprised positive and negative temperature transition, introduced freeze–thaw damage parameter after each cycle, and accurately simulated the stress state of freeze–thaw damaged CSG structures. Simulation results showed that this method can effectively represent the influence of the swelling and shrinkage due to freezing and melting and of the freeze–thaw damage on the CSG stress field. The results were used to conduct finite element analysis of the relatively long construction process of CSG structures under the action of freeze–thaw cycles.
650		0	_94621 _aCivil Engineering
700			_98071 _a Zheng, Yongjie
773	0		_tJournal of the institution of engineers (India) Series A _dDordrecht Springer _x2250-2149
856			_uhttps://link.springer.com/article/10.1007/s40030-018-0319-2 _yClick here
942			_2ddc _cAR