Figure 1 illustrates the apparatus for shear-modulus measurements. The specimen to be tested is secured to two concentric stainless steel cylinders. One of the specimen ends is inserted into a brass adapter which screws into a brass fitting soldered to a cylinder 8 in. long and 2 in. in ...
The dynamic oscillatory shear test is generally conducted within the region of linear viscoelastic response (LVE). This test is performed to measure the complex shear modulus (G*) and phase angle (δ) which mutually describe the viscoelastic response of bituminous materials. A rheometer under the ...
2.2 Shear modulus As mentioned above, the mechanical behavior of coated fabric is mainly governed by the underlying woven structure, especially the mechanical properties of the yarn. When the tensile load on the coated fabric is not parallel or perpendicular to the yarn directions, the warp and ...
Main Uses: Evaluate the viscosity (non-recoverable) and elastic (recoverable) properties of aged and unaggerated asphalt in the temperature range of 5-85°C by measuring the dynamic shear modulus G* and phase angles of bitumen, and predict the ability to resist rutt...
bend, shear, tear and peel off test.The data acquisition, preservation, processing and printing test results of PC and interface board are adopted. It can calculate the maximum force, yield force, average stripping force, maximum deformation, yield point, elastic modul...
The applied force P(t) is related to the measured transmitted strain \( \varepsilon (t) \) by: \( P(t) = {\varepsilon_t}(t)\,E\,A \) where E and A are elastic modulus and cross sectional area of the transmitting bar respectively. The sheared area of the gauge can be estimat...
value of the bulk modulus for diamond (~446 GPa)24. The shear modulus/rigidity also increases within the whole pressure range, and is equal to ~234 GPa at pressures around 20 GPa. To obtain the zero-pressure adiabatic bulk and shear moduli, as well as their pressure dependences, ...
𝐸𝑚Em: modulus of elasticity of concrete = 5𝐹𝑐𝑢−−−√Fcu (GPa); 𝐸𝑓Ef: modulus of elasticity of glass fibre, (GPa); 𝑓𝑐𝑟fcr: flexural strength of beam. 𝑓𝑐𝑟=[0.7+𝐸𝑚𝐸𝑓∗𝑉𝑓0.33] ∗ 𝐹𝑐𝑢−−−√fcr=[0.7+EmEf∗Vf...
The equation gives the width of a stacking fault on a {111} plane under a shear stress (τ), assuming the dislocation lines are all perpendicular to the direction of τ, with: b = modulus of the Burgers vector of the Shockley partials, G = shear modulus,γ = SFE, θ1/2 = angle ...
The elasticity modulus of pure ferrite phases at bottom and top surface is Ef = 178 GPa [36]; while that of martensite phases at core area is Em = 215 GPa [37]; The influence of Poisson’s ratio on the deflection is much less than that of elasticity modulus [38]. Therefore, Poisson...