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The processes of pipe collapse under external pressure have be calculated and simulated by means of the ANSYS FEA. It introduces the destruction theory of the pipe and some formula by API, and analyses the factors such as geometries, pressure, and its properties, which affect the capability of the resistance to the pipe collapse. The relationship between strain and stress of pipe has been descried...
With the high development of the motor industry, there is a great demand for precise and complex auto parts. New forging processes, material and energy saving processes are very important to the production of new type of auto parts. But forging mechanism is very complicated,and numerical simulation is the most effective method for analyzing the plastic deformation process. In this paper, several key...
According to the experimental studies on 11 specimens of recycled aggregate concrete (RAC) filled square steel tube column under axial compression loading. The failure patterns, mechanical behavior of RAC-filled square steel tube such as the loading-displacement curves, loading capacity, peak stress and strain, rigidity degradation and energy dissipation are obtained. Study results show that failure...
The stress-strain curve, the unconfined compressive strength (UCS) of different cement-soils and the influence of the surface roughness on the UCS of the silt cement-soil were obtained, using the laboratory test. Test results indicate that comparing with other four kinds of cement-soil (the silver sand cement-soil, the silt cement-soil, the clay cement-soil and the muck cement-soil, respectively),...
In order to reveal the mechanical behavior of recycled aggregate concrete-filled circle steel tube column under axial compression loading. 22 specimens were designed for test. The specimens parameters are recycled coarse aggregate replacement percentage and steel confine coefficient. According to the test, the failure process and patterns were obtained, the whole process curve of stress- strain and...
In this paper, a reasonable creep material model used in FEM analysis for bulging of cast slab was determined based on the comparative results between simulation and experimental data. A thermo-mechanical coupling, creep and dynamic FEM model of continuous casting process has been constructed and applied to case studies. The analysis produces outputs such as the necessity of considering the case slab...
The case study of extensional carbon fiber sheet (CFS) beams with reinforced concrete is introduced. Through test, reinforced extensional CFS beams are studied. Under the load, the flexibility, intensity, stress are researched and compared in the light of test results and theoretical analysis. Through test results, it is concluded that the stress strain, flexibility, intensity meet the calculated...
Chain structure is the basic structure of the data structure, cold roll forming process is similai to Chain structure. The establishment of dynamic chain model and Research on cold roll forming process using Chain structure, these will make the study have a more solid theoretical foundation for information. The problems such as predigestion the equation of the forming process, the effects of friction...
After the improvement of the actual theory of cold roll forming and the practical rolling process, author present the concept of dynamic chain model and node model, research steel strip forming mechanism based on information system. The problems such as the forming process research, the effects of friction on the forming, analysis of stress and strain were studied in the new model. What is more important...
During fabrication of modem microelectronic components miscellaneous solder materials are used. In order to ensure high quality of the manufacturing process as well as optimal reliability of the component and, in particular, of the solder joints it is most important to know the properties of all the materials involved. Of special interest are Young's modulus, yield stress, and hardness. Moreover,...
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