Performance and Failure Pattern on Enlarged Bottom Anchor Bolt under Pullout Loading

2013 ◽  
Vol 448-453 ◽  
pp. 1701-1706
Author(s):  
Shi Yan ◽  
Qi Le Yu ◽  
Hai Tao Du ◽  
Bi Cheng Song ◽  
Han Yan

The pullout test of an anchor bolt is very important for the anchorage technology. Adopting enlarged bottom anchor bolts to wind turbine foundations can not only take advantage of the mechanical property of rock mass, but also have good security and economical efficiency. The finite element analysis software ANSYS is used in this paper to numerically analyze a single enlarged bottom anchor bolt under pullout loading, to research the performance and failure pattern of the anchor bolt. The anchor bolt side friction is extracted to understand the stress distribution of the bolt. By the analysis of the bearing capacity of anchor's enlarged head and the change of plastic zone form, the ultimate strength and destruction form of the anchor blot are clearly understood. The results also show that the bearing capacity of the proposed enlarged bottom anchor bolt can obviously increased, resulting in a cone-shape failure pattern of soil.

2014 ◽  
Vol 587-589 ◽  
pp. 961-964
Author(s):  
Hu Qi ◽  
Yun Gui Li ◽  
Kang Liu ◽  
Hai Lu Lu ◽  
Jian Yun Sun ◽  
...  

<p class="p0">A kind of composite precast pavement system made by two composite and staggered layer panel is put forward, the finite element analysis software ANSYS is used to analyze the pavement system, and the calculation result is compared with the result of common precast pavement system. It shows that the proposed pavement system can greatly reduce the surface earth pressure, thus to improve the bearing capacity of pavement, and provide a new pavement structure system for the construction of site temporary road paving.</p>


2013 ◽  
Vol 470 ◽  
pp. 408-411 ◽  
Author(s):  
Yan Zhong Ju ◽  
Xiao Xu Fu ◽  
Neng Xian Zeng

Given the path situation of Xiyue substation 220kV four outlets project crossing Shunde waterway section,this article applies of Dao Heng tower full stress analysis software and the finite element analysis software ANSYS to two steel pipe combination of angle steel towers to carry on design research,contrast axial stress of two kinds of software,analyse the reasons of axial stress difference.


2013 ◽  
Vol 313-314 ◽  
pp. 1038-1041
Author(s):  
Shou Jun Wang ◽  
Xing Xiong ◽  
Chao Li

According to uncertainty of the design parameters for large span truss of installing wave-maker, in order to avoid the waste of materials,the truss is analyzed based on the finite element analysis software ANSYS to find out its weaknesses and various parts of the deformation. On the premise of ensuring the intensity and stiffness, the weight of the truss is reduced by adjusting its sizes and selecting different profiles, so as to achieve the optimization of the truss of installing wave-maker.


2014 ◽  
Vol 1079-1080 ◽  
pp. 177-182
Author(s):  
Shao Wu Zhang ◽  
Ying Chuan Chen ◽  
Geng Biao Zhang

In order to study the performance of concrete frame columns that reinforcedby assembleinclined web steel truss, with the same reciprocatinghorizontal displacement and different axialcompression.It canbe calculate the mechanical behavior of concrete frame columns and reinforced columns by using the finite element analysis software ABAQUS. Simulation analysis shows that the bearing capacity ofreinforced columnshas greatly increased andpresented a full hysteresis curve. The result shows that the reinforcement method of assemble inclined web steel truss can greatly improve the bearing capacity and ductility of the concrete frame column, and the axial compression is larger, the better the reinforcement effect.


2012 ◽  
Vol 468-471 ◽  
pp. 2517-2520 ◽  
Author(s):  
Xin Ying Xie ◽  
Xin Sheng Yin

In this paper ,it analyses the push-extend multi-under-reamed pile in use of elastic-plastic theory by the software ANSYS.It takes four push-extend multi-under-reamed piles which are the same except plates' distance.It introduces the realative theory to make the anlysis much more accuracy.The results which is taken by ANSYS are researched to find out the regularity and can certain the reasonable plate's distance to anlyze the bearing capacity of push-extend multi-under-reamed pile at the same time.


2011 ◽  
Vol 52-54 ◽  
pp. 1147-1152
Author(s):  
Guang Guo Zhang ◽  
Wei Jiang ◽  
Hong Hua Zhang ◽  
Huan Wang

In the traditional designs of milling cutter, we cannot get the required accuracy of machining as there may be local deformation on the edges, even more the cutter can break down. Aiming at this situation, a finite-element model of straight pin milling cutter with helical tooth are built using Marc, a nonlinear finite-element analysis software, the different cutting forces of the milling cutter during the cutting process are analyzed and the cutting forces of the milling cutter at different parameters are studied. We get the stress, the strain and the temperature distribution of the milling cutter in different situation. Our work offer a theoretical basis of improving stress of the cutter, designing the structure of cutters reasonably and analyzing the cutter failure as well as a new method of analysis and calculation of the cutter life and strength.


2012 ◽  
Vol 594-597 ◽  
pp. 642-646
Author(s):  
Anji Yu ◽  
Jie Liu ◽  
Dong Dong Yang ◽  
Hua Feng Cao ◽  
Xiao Pei Yang

In view of highway slope stability problems, this paper puts forward the method that numerical modeling of the road slope by the finite element analysis software —ADINA, with the Gravity Loading Proportion Methodto calculate the slope stability coefficient, deeply research the development process of deformation, breakage characteristics and stability of road high cutting slope. Comparison with the results obtained by the strength reduction FEM proposed by AcademicianYingrenZhengshows that the proposed method is more simple and reasonable to determine slope stability or not.


2012 ◽  
Vol 201-202 ◽  
pp. 907-911 ◽  
Author(s):  
Feng Yi Feng ◽  
Yu Guo Cui ◽  
Fei Xue ◽  
Liang En Wu

Based on the requirements of that the finger can move in parallel, and the displacement of the finger can be detected, the micro-gripper driven by piezoelectric actuator is designed based on the displacement amplification structure with the flexure hinge. The static analysis, the modal analysis, the harmonic response analysis and the transient response analysis of the micro-gripper are carried out by using the finite element analysis software ANSYS. The results of the finite element analysis show that the finger is fully able to move in parallel, and can detect the displacement of the finger; the maximum displacement of the finger is about 101 μm, the first natural frequency is about 130 Hz; the finger tip displacement under the 1 μm step input is about 20 μm, the fingertip vibration is about ±2 μm.


2011 ◽  
Vol 2-3 ◽  
pp. 861-864
Author(s):  
Ling Ling Li ◽  
Guang Pu Xu ◽  
Bing Bing Cui

The mechanism withstands 220t high temperature molten steel. In case of damage, molten steel pours. There will be major security incidents. Therefore, it is necessary to calculate carrying capacity of the mechanism. However, the part of components of the mechanism is made up of a crisscross of steel plate. This is used to withstand the bending and stretching. If we rely on traditional mechanical analysis, a large number of simplifying must be adopted, and accuracy of the calculation can be reduced. Therefore, this paper uses the COSMOSWorks Plug-in of SolidWorks software to carry out finite element calculation of whole machine for the mechanism. It avoids these shortcomings mentioned above. And this makes bearing capacity calculation to be more close to the actual circumstances. And the results show that: (1) the maximum stress of parts in the mechanism is only 52.8Mpa and much less than permissible stresses of its materials. As a result, the mechanism has sufficient bearing capacity. (2) The maximum displacement of whole machine is 2.637 mm. And the displacement will cause dip angle when lifting molten steel and it is less than its allowable stiffness. Therefore, the deformation is to meet requirements for the mechanism. In conclusion, the finite element analysis of the whole machine avoids complex force analysis and simplification of structure. The calculation has high accuracy. It is one of effective methods in the design of intensity and stiffness of complex structures.


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