In addition, small scale beams and bars can be used as test specimens for measuring the lengths that enter the constitutive equations of gradient elasticity.
Six groups of CFRP strengthened simply supported small scale beams were loaded prior to the heating with a point load of 1 kN and heated uniformly in loaded condition to a specified temperature of 50 °C, 100 °C, 150 °C, 200 °C, 250 °C or 300 °C.
The material selected for the small-scale beam model was polycarbonate, which is strong and durable, as well as linearly elastic.
To that aim, several small-scale beams were constructed and tested to evaluate the flexural behavior and ultimate moment capacity of the UHPC beams.
The FE models were calibrated with results of 4-point bending tests on small-scale beams and then extended for different beam geometries, with spans (L) varying from 2 m to 5 m, in which the influence of the CFRP bonded length (lb) and the loading type (point or uniformly distributed) on the strength reduction was evaluated.
Experimental specimens consisted of 32 small scales concrete beams which were subjected to 4-point loading test.
In this study, concrete cover damages are imposed on small scale prestressed concrete beams, which are tested in three-point bending to determine the effect of this type of damage on the shear capacity of the beams.
Twenty one small scale bond tests using notched concrete beams, and nine full scale beams were tested.
Consequently, the proposed analytical solution can be used as an efficient tool for studying the effects of the material or geometrical parameters on small scale devices consisting of micro-beams for their design and optimization which requires a large number of simulations.
Then axial wave propagation of small scale bars, static bending of cantilever beams, buckling and free vibration of simply supported beams are analytically solved by using the simplified strain gradient beam theory.
A concept for the design of a straight symmetrical blade for a small scale vertical axis wind turbine using beam theories for analytical modeling and a commercial software ANSYS 11.0 for numerical modeling is presented in current research.
