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为克服岩石各种破坏准则较为抽象、不利于学生接受与理解,特别是不能根据岩石材料复杂、多变的特性与具体的工程实践问题实时给出破坏准则的特点。在教学过程中引入软件Rockdata的应用,实时给出不同岩性与问题所对应的破坏准则参数,在同一制图窗口上表示出两种破坏准则的差异性;在授课过程中同时绘制出反映正应力与剪应力、最大主应力与最小主应力关系的曲线,便于学生理解掌握不同坐标系下破坏准则的形态与特点,帮助使用者根据工程实际情况选择合理的前处理参数,帮助学生针对不同的问题选择、制定出合理的破坏准则,有利于后期数值分析的学习与应用。
In order to overcome various criteria of rock destruction, it is more abstract and unfavorable for students to accept and understand. In particular, the failure criterion can not be given in real time according to the complicated and changing characteristics of rock materials and specific engineering practice. The introduction of software Rockdata application in the teaching process, real-time given different lithology and problems corresponding to the damage criterion parameters in the same drawing window shows the difference between the two kinds of damage criteria; at the same time in the teaching process to draw a positive stress And the relationship between the shear stress, the maximum principal stress and the minimum principal stress so as to facilitate students to understand and grasp the shape and characteristics of the damage criterion in different coordinate systems, and help the user to select reasonable pre-processing parameters according to the actual situation of the project so as to help students to deal with different problems Choose to develop a reasonable failure criteria conducive to the late numerical analysis of learning and application.