(1978), "Equation for stress-strain curve of concrete confined in circular Steel Spiral", Mater. Construct., 11(65), 339-345.Equation for stress-strain curve of concrete confined in circular steel spiral[J] . Prakash Desayi,K. T. Sundara Raja Iyengar,T. Sanjeeva Reddy.Matériaux et ...
A simple stress-ratio equation, based upon ultimat... GM Smith 被引量: 3发表: 1953年 Shear Strength of Concrete Hollow Block Masonry under Combined Shear and Compression Loading With the development of vertical compressive stress, three typical failures of masonry wall under combined shear and ...
The equation measures the Modulus of Elasticity of pervious concrete (E) in MPa. S1 represents forty percent of the final stress in Newton, while S2 represents eighty percent of the final stress in Newton. ε1 denotes the strain in stress S1 in mm, and ε2 represents the strain at stress...
For both types of material the diagram could be described by the following equation: fmax/fmin=1−0.0685×1−R×log10N where, fmax and fmin are highest and lowest compressive (cylinder) stresses R is the ratio of lowest to highest compressive stress N is the number of load cycles to ...
Phase transitions in block copolymers resulting in a discontinuous change of the spatial period of mesophases The phase behavior of a melt of two-scale multiblock copolymers has been theoretically studied in the framework of the Weak Segregation Limit theory with a... S Kuchanov,V Pichugin,GT ...
In this manner, the fire-resistance performances of externally bonded (EB) FRP and near-surface-mounted (NSM) FRP to concrete block were evaluated by high-temperature exposure tests after performing a fire-protection on the surface in this paper. Board-type insulation with mortar was considered ...
(Fig.10), under the variable-temperature curing conditions, the results of the proposed resistivity model, standard method and Arrhenius equation increase nonlinearly in general. When the curing time less than 6 days, the equivalent age obtained by the resistivity model is larger than that obtained...
The process of solving the above equation by linear regression is as follows: (12) The mean value of the output image in the window of pixels centered at k is denoted by μk, the variance is denoted by , is the average value of the input image in the window of pixels centered at ...
(KN); 𝑓f is friction coefficient between the protective block and the beach body, measured to be 0.9 in this experiment; 𝐺2G2 is the total weight of the suspended protective blocks connected in the direction of the tying strip (KN); 𝛼α is the slope angle of the beach steep; ...
In the equation, 𝐷𝐼𝐹=1+𝐶ln𝜀˙∗DIF=1+Clnε˙* is the dynamic increasing factor, 𝜎∗𝑦=𝜎𝑦/𝑓′𝑐σy*=σy/fc′ is the normalized yield stress, 𝜎𝑦σy is the yield stress, 𝑓′𝑐fc′ is the unconfined compressive strength, 𝐷D is the damage fac...