CAJ | 학술논문

为分析CA砂浆在不同伤损情况下对轨道板受力影响，用 ANSYS模拟 CA 砂浆常见的剥离、板角掉块的伤损模型，在列车轴载和温度荷载作用下对轨道板进行受力分析。结果表明：CA 砂浆与轨道板剥离增加了轨道板在温度荷载下的翘曲变形和板底拉应力；板角碎裂、掉块导致轨道板受力不均匀，造成了局部的应力集中，随着掉块面积的增大，应力集中加剧，降低了轨道板的服役寿命。
위분석CA사장재불동상손정황하대궤도판수력영향，용 ANSYS모의 CA 사장상견적박리、판각도괴적상손모형，재열차축재화온도하재작용하대궤도판진행수력분석。결과표명：CA 사장여궤도판박리증가료궤도판재온도하재하적교곡변형화판저랍응력；판각쇄렬、도괴도치궤도판수력불균균，조성료국부적응력집중，수착도괴면적적증대，응력집중가극，강저료궤도판적복역수명。
In order to explore the impact of the damaged CA mortar on the track plate,the model of damaged CA mortar is created and loads are analyzed by ANSYS finite element software.The re-sults show that the stripping between CA mortar and the track plate causes the gradient warping displacement and the tensile stress of slab bottom.Fragmentation and the disengaging of CA mor-tar's corners cause the fractional stress concentration.With the inj ury exacerbation and the stress concentration,the fatigue life of rail plate is reduced.