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the crack propagation driving force and adds extra crack path. The enhanced fatigue crack resistance of SiCp/2009Al composite is explained by these two retardation effects mentioned above. Key word: SiCp...的疲劳裂纹扩展抗力. 关键词:SiCp/Al复合材料;疲劳短裂纹扩展;裂纹闭合;裂纹偏析 中图分类号:TG146.2+1 文献标识码: A Effect of SiC particulates on small fatigue crack growth behavior of SiCp/2009Al composite......
for measuring end-to-end path capacity LI Wen-wei(黎文伟)1, TANG Jun-long(唐俊龙)2, ZHANG Da-fang(张大方)1, XIE Gao-gang(谢高岗)3 (1. School of Software, Hunan University, Changsha 410082, China; 2...: By analyzing the effect of cross traffic (CT) enforced on packet delay, an improved path capacity measurement method, pcapminp algorithm, was proposed. With this method, path capacity was measured......
Ribbon model based path tracking method for autonomous ground vehiclesCHEN Qing-yang(陈清阳), SUN Zhen-ping(孙振平), LIU Da-xue(刘大学), LI Xiao-hui(李晓辉) (College of Mechatronic Engineering and Automation,National University of Defense Technology, Changsha 410073, China)Abstract:To resolve the path tracking problem of autonomous ground vehicles, an analysis of existing path tracking methods was carried......
of Gauss points was selected on the crack propagating path with 1.0 mm interval as depicted in Figure 6. According to the Gaussian point spacing and the fracturing time of each element, the crack... propagation path with high-strength glue, as shown in Figure 3. The first filament of the CPG just coincided with the pre-crack tip to monitor crack initiation time. The CPG filaments will break when the crack......
under cyclic The growth path of the crack is ascertained by the stress condition in the vicinity of MX. Points along the x-axis near MX have stresses as shown in Fig. 3: the sample is under tension... at edge of crack stop hole: Fig. 3 Stress state in vicinity of a stress concentration 2.3 Stress gradient A crack stop hole was set in the path of the crack growth and stress σy at the crack tip before......
rate first decreased and then increased,with the minimum rate at-0.75 V. And the crack growth path exhibited transgranular fracture.关键词:...The effect of crack tip environment on crack growth behaviour of a low alloy steel at cathodic potentials in artificial seawaterYong Li1,Zhiyong Liu1,2,Endian Fan1,Zhongyu Cui3,Jinbin Zhao1,41......
, absorb the potential energy of crack expansion, retard the expansion of crack and improve the plasticity of the material. 2) The presence of twins prolongs the path of crack, and retard... Interaction of crack with twins in hot-rolling AZ31 magnesium alloys during in-situ TEM straining experiments WU Luo-yi(吴落义)1, WU Cui-lan(伍翠兰)1, XIA Wei-jun(夏伟军)2, CHEN Zhen-hua(陈振华)2 1. Center......
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. Advantage of this technique is that the calculated value of J is path independent [40]. Therefore, this value was calculated for several contours around the crack tip, and the converged value of J... J. Cent. South Univ. (2020) 27: 242-255 DOI: https://doi.org/10.1007/s11771-020-4292-3 Finite element analysis of road structure containing top-down crack within asphalt concrete layer Pirmohammad......
Intelligent PID guidance control for AUV path trackingLI Ye(李晔), JIANG Yan-qing(姜言清), WANG Lei-feng(王磊峰), CAO Jian(曹建), ZHANG Guo-cheng(张国成) (National Key Laboratory of Underwater Vehicle, Harbin... in underwater survey missions. An intelligent PID control law implemented as planning level during the control system using transverse deviation is came up with. Continuous tracking of path expressed by a point......