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bar; push out test; bond slip model 推出试验是研究钢筋在承受压力状况下黏结锚固问题的试验方法之一.截至目前,国内外众多学者[1-15]对钢筋的受拉黏结锚固性能进行了大量的试验研究和分析,提出了很多钢筋受拉黏结滑移本构模型.Eligehausen等[1-3]提出了变形钢筋数值分析的BPE模型.徐有邻等[4]根据黏结锚固试验结果,将钢筋的黏结滑移分成5个阶段:微滑...2 试验采用的钢筋表面形状 Fig.2 Surface shape of test reinforcing bars 图3 推出试验示意图 Fig.3 Push out test scheme 图4 推出试验装置 Fig.4 Push out test equipment 1.3 试验结果与分析 本次试验采用分......
integral technique was developed to simulate the push out test and evaluate the interfacial fracture toughness of SiC reinforced titanium matrix composites. A special subroutine was introduced while modeling the push-out test to control interfacial failure process. In addition, the residual stresses, Poisson ratio and friction stresses were all considered in the finite element analysis and the interface......
Finite Element Analysis of Push-Out Test of SiC Fiber Reinforced Titanium Matrix Composites () 摘要:Based on the interphase layer model and the spring layer model, an improved interface model... MPa. In addition, in order to better understand the interfacial properties of composites, some push out phenomenon were analyzed. 关键词:Titanium matrix composites; finite element method; interface......
基于FEM法的Zr合金棒材挤压工艺模型李小影1,2,3,于军辉1,2,3,李晓珊1,2,3,王晨阳1,2,31. 国核宝钛锆业股份公司2. 国家能源核级锆材研发中心3. 陕西省核级锆材重点实验室摘 要:文章利用有限元法(FEM)和金相组织观察相结合的方法研究了Zr合金棒材热挤压过程,结果表明:Zr合金挤压过程中,挤压过程的最大应力出现在挤压变形段.在该变形量下,挤压后的棒材芯部和外部组织存在分布不均匀的现象.挤压后外部的晶粒组织基本为等轴晶,且晶粒大小相对较为均匀.挤压后芯部的组织为等轴晶,但是晶粒大小分布......
Heidelberg 2010 Abstract: In order to study the engineering behaviors of reinforced gabion retaining wall, laboratory model test was carried out. Cyclic load and unload of five levels (0-50, 0-100... to the special structure of reinforced gabion retaining wall. Further study needs to be carried out on potential failure surface of reinforced gabion retaining wall. Fig.8 Comparison between test......
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. The uniaxial compression test is carried out for the 12 transparent soil samples consolidated successively, and the uniaxial compressive strength is obtained respectively, as shown in Table 8. Figure 6 shows... J. Cent. South Univ. (2018) 25: 3085-3097 DOI: https://doi.org/10.1007/s11771-018-3976-4 Physical simulation test of soil-rock mixture from synthetic transparent soil DING Xiao-hua(丁小华)1, 2, ZHOU......
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Trans. Nonferrous Met. Soc. China 26(2016) 2892-2899 Prediction of central bursting defects in rod extrusion process with upper bound analysis method Amir PARGHAZEH, Heshmatollah HAGHIGHAT Mechanical Engineering Department, Razi University, Kermanshah 67149-67346, Iran Received 12 October 2015; acce......