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Effect of Interfacial Strength on Bending Properties of Reinforced Concrete BeamsZHANG Yafang,YANG Wenlong,LIU HaoFaculty of Civil Engineering,Guangzhou University摘 要:By taking into consideration of meso-scopic level, four-point bending numerical model of different interfaces was established to analyze the effect of interfacial strength on the bending......
Article ID: 1003-6326(2005)02-0221-04 Preparation of textile preform with sewing machines and bending properties of stitched woven glass fibre fabrics ZHAO Nuo-ping, , C.Herzberg (Institute... and more used, because of their light mass, high strength, high temperature endurance and erosion resistance. This paper focuses on the process of forming a preform. Up to the finished preform......
of 6.5 mm; the yield strength of these bars was 306 MPa, as measured by a tensile test. The stirrup spacing in the shear section was 60 mm and 150 mm in the pure bending section, as shown in Figure 1... J. Cent. South Univ. (2019) 26: 196-206 DOI: https://doi.org/10.1007/s11771-019-3993-y Bending performance of TRC-strengthened RC beams with secondary load under chloride erosion YU Yu-lin(余玉琳)1......
min时达到最高值,为36.3 MPa. 图7 445 ℃不同保温时间Mg1/Al1060接头抗弯强度 Fig. 7 Bending strength of Mg1/Al1060 joints at 445 ℃ for different holding time 图8所示为不同保温时间下接头Al侧断口形貌,图中对应各特征区域的EDS结果见表5.由图8可知,保温10 min时... by longitudinal growth and finally forms a uniform and flat diffusion layer. The highest bending strength of the joint is 36.3 MPa and a fracture occurs in the diffusion layer which belongs to quasi-cleavage......
. The effects of Cf content on the density and bending strength of Cf/TiC/Cu composites were investigated. The results indicate that the transition layer with TiC as the main phase surrounding the carbon..., the resistivity is 0.054 μΩ·m, the bending strength parallel to the pressure direction is 237.90 MPa, and the bending strength perpendicular to the pressure direction is 237.44 MPa. Key words: short......
in bending strength of the composites. Heat treatment at 800 °C for 36 h does best to hardness of the composites, while at 700 °C for 36 h it is the most beneficial to their comprehensive mechanical properties. Key words: B4C/2024Al composites; heat treatment; pressureless infiltration; hardness; bending strength 1 Introduction Boron carbide (B4C) is regarded as an important ceramic for its......
by striking through the U-notched specimen to breakage. The Charpy impact strength was calculated by dividing the impact energy in joules by the area under the notch. The tensile and three-point bending.... The tensile strength and modulus were obtained from the stress-strain curves. According to the standard ISO 178, the support span for three point bending tests was 40 mm; the loading speed and the maximum......
for 3 min. The 90W-6Ni-4Mn alloys consisted of the W phase and the γ-(Ni, Mn, and W) binding phase, and the average grain size was less than 10 μm. The Rockwell hardness and bending strength of alloys first increased and then decreased with increasing sintering temperature. The best comprehensive performance was obtained at 1200 °C, its hardness and bending strength were HRA 68.7......
by energy theory of bending waves The critical value of bending strength of PDC cutters is only about one tenth of that of compressive strength[8-9]. When loads applied along the axial line...J. Cent. South Univ. Technol. (2008) 15: 112-116 DOI: 10.1007/s11771-008-0022-y Failure analysis of polycrystalline diamond compact cutters for breaking rock by bending waves theory......
(AlN-Si3N4-SiC) composite ceramics were prepared to increase the bending strength and improve the phase structure of Si3N4-based ceramics. The ceramics were made by reactive sintering in N2 atmosphere at 1 360... the bending strength of the ceramics. Lower temperature nitrification technic was introduced to avoid the appearance of liquid-phase Si. The optimum addition of Al was investigated by XRD and SEM......