态型近场动力学模型中边界效应的修正方法

来源 :第一届无网格粒子类方法进展与应用研讨会 | 被引量 : 0次 | 上传用户:chenming000
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  近场动力学是近年来发展起来的一种以积分形式的运动方程为特点的力学理论,有效避免了裂纹尖端的奇异性,该理论分为键型近场动力学和态型近场动力学两类,态型近场动力学又分为常规与非常规两类。近场动力学将物体离散为一系列物质点,各物质点受其周围一定范围内的其他物质点作用,在边界区域如自由边界或靠近两种材料的边界的物质点会因为邻域内物质点的缺少或性质不同导致结果的不准确,即为边界效应问题。
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