Eftekhari, M. Faraji, G. Bahrami, M.
Published in
Archives of Civil and Mechanical Engineering
In this study, severe plastic deformation (SPD) process of hydrostatic tube cyclic extrusion–compression (HTCEC) was performed through two passes on the commercially pure copper tubes with the purpose of fabricating relatively long ultrafine-grained (UFG) tubes. In HTCEC process, the presence of pressurized hydraulic fluid around the piece plays a ...
Kim, Min-Jae Oh, Taekgeun Yoo, Doo-Yeol
Published in
Archives of Civil and Mechanical Engineering
This study investigated the influence of curing conditions and the inclusion of ground granulated blast furnace slag (GGBS) on the mechanical performance of ultra-high-performance strain-hardening cementitious composites (UHP-SHCC). Air- and wet-curing conditions were applied for 28 and 91 days, respectively. Compressive strength and direct tensile...
Shen, Xuehui Gong, Xianhong Wang, Baolin He, Jianqun Xu, Chonghai Su, Guosheng
Published in
Archives of Civil and Mechanical Engineering
Ultrasonic burnishing (UB), in which a ball tip is usually utilized, has been proved to be an effective method for metal surface strengthening. In this study, a roller tip was employed in the ultrasonic burnishing of Inconel 718 alloy (ultrasonic roller burnishing, URB). Meanwhile, a new surface modification technique, i.e., a combination of URB an...
Tchekwagep, Jean Jacques Kouadjo Chen, Dangui Mukhopadhyay, Anol K. Wang, Shoude Huang, Shifeng Cheng, Xin
Published in
Archives of Civil and Mechanical Engineering
Concrete made from rapid sulphoaluminate cement is widely used today, especially in China. It is likely to continue gaining popularity since its manufacture produces less CO2 than the process of manufacturing ordinary Portland cement. Elevated temperatures are among the most serious threats to the structural stability of this product. In the presen...
Xu, Junfeng Yang, Ming Chen, Daiguo Ma, Honghao Shen, Zhaowu Zhang, Bingyuan Tian, Jie
Published in
Archives of Civil and Mechanical Engineering
In this work, an improved explosive welding technique was introduced to obtaining high-quality metal coatings, where titanium (TA2) foils with different thicknesses of 0.1, 0.2, 0.3, and 0.4 mm were successfully coated on Q235 steel. Systematic investigations of the achieved claddings were conducted using macro- and micro-morphology observations, E...
Chen, Yifan Lin, Hang Wang, Yixian Xie, Shijie Zhao, Yanlin Yong, Weixun
Published in
Archives of Civil and Mechanical Engineering
The constitutive models of rock are essentially the general depictions of the mechanical responses of rock mass under complex geological environments. Statistical distribution-based constitutive models are of great efficacy in reflecting the rock failure process and the stress–strain relation from the perspective of damage, while most of which were...
Xu, Lei Yu, Zhiwu Shan, Zhi
Published in
Archives of Civil and Mechanical Engineering
In this work, a novel and practical method is developed to depict the track slab damage and residual strain evolution, where the concrete damage constitutive relation of track slabs is considered within the train–track–bridge dynamics framework. A three-step strain method is presented to judge the load/unloading, compression/tension status of track...
Paidar, Moslem Kazemi, Amirreza Mehrez, Sadok Oladimeji Ojo, Olatunji Matyuso Nasution, Mahyuddin Khairuddin Mironov, Sergei Nikolaevich
Published in
Archives of Civil and Mechanical Engineering
The weldability of the AA2024-T3 and AZ31 Mg alloys was investigated using the modified friction stir clinching-brazing (MFSC-B) and probe-less friction stir spot brazing (PFSSB) processes. A 50 µm thick Zn foil-interlayer was sandwiched between the dissimilar base materials for the welding processes. The mechanical, microstructure, and weld-fractu...
Yang, Zhicheng Lu, Hanwen Sahmani, Saeid Safaei, Babak
Published in
Archives of Civil and Mechanical Engineering
The proposed study scrutinizes the small scale-dependent geometrical nonlinear flexural response of arbitrary-shaped microplates having variable thickness made of functional graded (FG) composites. Accordingly, the modified couple stress continuum elasticity incorporating the von Karman large deflection supposition is established within a quasi-thr...
Kang, Yuhang Feng, Kaimin Zhang, Weitang Mao, Yangwu
Published in
Archives of Civil and Mechanical Engineering
Carbon fiber-reinforced carbon composite (CFC)/Ti6Al4V alloy brazing has been performed with Ag–Cu–Ti braze and Nb (or W) foil. Satisfactory bonding is achieved at the interfaces among substrates, refractory metal layer and fillers. The joining region consists of filler I, refractory metal layer and filler II. The fillers I and II are composed of A...
