The scope of this study is to relate the acoustic activity of damage in composites to the failure mechanisms associated with these materials. Cross ply fiber reinforced composites were subjected to tensile loading with recording of their acoustic activity. Acoustic emission (AE) parameters were employed to monitor the transition of the damage mechanism from transverse cracking (mode I) to delam...

The paper discusses the results of an experimental investigation carried out on reinforced concrete (RC) beams strengthened in shear by externally bonded fiber reinforced plastic (FRP) sheets. The study is devoted to analyze the role that the transverse steel reinforcement and the beam slenderness ratio could play on the resistant mechanism of RC beams strengthened in shear by FRP composites. T...

The strength and ductility of concrete improve under multi-axial compressive stress due to confinement effect. Some parameters are effective for considering the confinement in concrete and various stress-strain models were developed by different researchers. Longitudinal and transverse reinforcement steels can influence on confinement in reinforced concrete members. In this paper, various stres...

The effect of acidizing process on the stress corrosion cracking HP-13Cr stainless steel in ultra-depth well environment was studied by slow strain rate test, electrochemical measurement, microstructure observation, and finite element modeling. results indicated that significantly increased susceptibility induced fracture mode to brittle characteristic high temperature CO 2 pressure environment...

Abstract SiC fiber-reinforced matrix composites (SiC f /SiC) with 2D woven fabric as preform were tested under compression in-situ X-ray computed tomography. The microstructure and damage evolution of the material continuous loading levels accurately revealed by image reconstruction CT data. There inhomogeneous pores in /SiC composite because un-uniform fiber distribution preform. result also s...