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- Combining general four-node element around crack tip element, a hybrid-stress finite element model is developed, Accordingly a hybrid finite element method to fo. 与四节点单元相结合,提出一种求解自由边界面端部广义应力强度因子的杂交元法。
- A stiffness matrix of hybrid crack tip element is presented based on the modified variational principle with relaxed continuity requirements and the stress and displacement fields of crack tip zone. 根据放松了连续性要求的修正势能原理及裂纹尖端的应力、位移场，推导了杂交单元的单元刚度矩阵。
- crack tip element 裂尖单元
- In this development only a single crack tip has been considered. 在这个研究中只是考虑了单个裂纹尖端。
- They also noted "scattering zone" was very near to the crack tip. 它们还表明：“离散区”非常接近裂纹顶端。
- Note that these contours do not encompass the crack tip. 注意这些围道，都不包含裂信尖端。
- Perianth cylinder form, 4 tine crack tip, petaline shape. 花被圆筒形,先端四齿裂,花瓣状。
- In the tie girder boxes crack growth was detected near the crack tip. 在系杆箱型梁中裂纹尖端附近检测到裂纹的扩展。
- A notched specimen is designed to simulate the corrosion reaction at crack tip. 为此,文中设计了一种新颖的缺口试样,再现裂纹尖端的真实状态。
- After that , we make with CDF drawing by interrelated formula and simulate the model of X56 pipeline with surface crack by finite element software ANSYS, then, we compute J integral of crack tip . R阻力曲线确定热影响区和焊缝金属分别具有的断裂韧度,根据相关的公式做出CDF评定图,应用有限元软件ANSYS模拟含表面裂纹的X56海底管线模型,并计算裂纹尖端的二维J积分值。
- By using the eigenfunction expansion technique, a one-dimension finite element formulation is then developed to determine the eigensolutions to the 2D heat conduction problem at the crack tip, which discretizes the sectorial domain circumferenially. 利用特征方程展开方法，可获得分析裂纹尖端处二维热传导特征解的一维有限元列式。
- So such, both shape consistent with boundary element geometrical shape, and simulate crack tip close-by variety law of stress and strain with higher precision, and enhancing calculative efficiency. 如此，既能与边界单元几何形状基本拟合，又能高精度地模拟裂纹尖端附近位移和应力变化规律，并提高计算效率。
- The ground area was also checked with dye-penetrant to ensure that no crack tip remained. 打磨区也用着色渗透剂进行了检查，以便确保无裂纹尖端留存。
- Stress analysis in variation states at crack tip and notch crown tip is presented. 摘要分析了椭圆孔口端点和裂纹端点处的变动态应力。
- In dynamic experiment, a series of dyn amic caustic patterns surrounding the crack tip and fracture path are recorded. 在动态实验中,记录了裂纹扩展的过程和在此过程中不同时刻的焦散斑和裂纹扩展的路线。
- The cross-sectioning observation of the samples shows that there are discrete voids ahead of the crack tip. 四点弯曲预加载试样侧剖形貌表明，裂纹启裂之前，裂尖前方出现大范围的不连续的孔洞。
- The small welded joints can be formed at a small sphere near the crack tip inside the thick cylinder by metal mel... 在此基础上还讨论了在电载荷和机械载荷共同作用下裂纹前缘的应力场。
- Plastic deformation takes place first at the crack tip and spreads across the solid as the applied load is increased beyond general yielding. 塑性变形首先发现在裂纹顶端，当工作载荷超过了普通屈服时，则传播到物体中。
- Secondary crack, reared ridge, and microcrack in the front of the main crack tip can all hinder crack propagation during low cycle fatigue. 撕裂棱、裂纹前端微裂纹的桥接等因素是阻滞主裂纹扩展的主要机制。
- Stress-strain distribution near the crack tip was studied in this paper,with the emphasis on the fracture process zone (FPZ). 主要分析了裂纹尖端附近区域应力和应变场的分布情况,着重研究了裂纹尖端附近断裂过程区内的应力和应变分布。
