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岩石圆环试件拉张破裂结构演化有限元模拟 被引量:7

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摘要 岩石具有低抗拉特性,抗拉强度控制着岩体工程的整体稳定性.利用有限元方法,对岩石圆环试件拉张破裂过程的结构演化过程进行了研究.模拟结果显示:圆环结构受拉应力作用发生破裂,形成不连续面;圆环在拉应力作用下不断形成破裂面,结构形式相应发生演化,并导致应力状态改变,最终圆环结构内壁上下、外壁左右全部开裂,系统不稳定、丧失承载能力,完全破坏.将有限元模拟结果与实验结果对比二者相吻合,可为研究岩石的破裂规律及裂纹扩展提供新的研究方法.
出处 《自然科学进展》 北大核心 2009年第4期467-472,共6页
基金 国家自然科学基金资助项目(批准号:50434020)
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参考文献21

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二级参考文献34

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