Evaluation of the mechanical properties of self compacting concrete using current estimating models. Estimating the modulus of elasticity, tensile strength, and modulus of rupture of self compacting concrete [PDF]
This study includes an analysis of the applicability of current models used for estimating the mechanical properties of conventional concrete to self-compacting concrete.
Fernández Gómez, Jaime Antonio +5 more
core +1 more source
Experimental studies of scale effects on shear strength, and deformation of rock joints [PDF]
The effect of scale on shear strength is studied by performing direct shear tests on different sized samples of large joints. A rubber moulding system is used to obtain impressions of the roughness from a variety of natural joint surfaces.
Bandis, Stavros
core +6 more sources
Párraga-Montilla, JA, García-Ramos, A, Castaño-Zambudio, A, Capelo-Ramírez, F, González-Hernández, JM, Cordero-Rodríguez, Y, and Jiménez-Reyes, P. Acute and delayed effects of a resistance training session leading to muscular failure on mechanical ...
Capelo Ramírez, Fernando +6 more
core +1 more source
Structural Damage Detection by Using Single Natural Frequency and the Corresponding Mode Shape
Damage can be identified using generalized flexibility matrix based methods, by using the first natural frequency and the corresponding mode shape. However, the first mode is not always appropriate to be used in damage detection. The contact interface of
Bo Zhao +4 more
doaj +1 more source
The research on the dynamic performance of the rod-fastened rotor (RFR) has always been a hotspot. However, the structural complexity of RFR has brought significant challenges to the dynamic study of the RFR.
Haoliang Xu, Lihua Yang, Tengfei Xu
doaj +1 more source
Structural Optimization of Tri-Cone Cyclone Based on the Response Surface Method
There are scarce reports on the separation performance of discontinuous multi-cone cyclones. This paper presents a combined tricone cyclone structure. First, a numerical simulation was conducted for single factor analysis on the main structure, so as to ...
Qian Weifeng +4 more
doaj +1 more source
Fractal Model for Acoustic Absorbing of Porous Fibrous Metal Materials
To investigate the changing rules between sound absorbing performance and geometrical parameters of porous fibrous metal materials (PFMMs), this paper presents a fractal acoustic model by incorporating the static flow resistivity based on Biot-Allard ...
Weihua Chen +4 more
doaj +1 more source
Effects of Temperature on Axial Crushing Behavior of Circular Multi-Walled Tubes
In this work, the impact of temperature on the crushing performance of multi-walled tube (MWT) were investigated using a combined experimental, theoretical and numerical method.
Zhijia Zhang +4 more
doaj +1 more source
A lightweight low-frequency sound insulation membrane-type acoustic metamaterial
A novel membrane-type acoustic metamaterial with a high sound transmission loss (STL) at low frequencies (⩽500Hz) was designed and the mechanisms were investigated by using negative mass density theory.
Kuan Lu +4 more
doaj +1 more source
Interactive Effects of Rarefaction and Surface Roughness on Aerodynamic Lubrication of Microbearings
The aerodynamic lubrication performance of gas microbearing has a particularly critical impact on the stability of the bearing-rotor system in micromachines.
Yao Wu +3 more
doaj +1 more source

