Is load control suitable for fracture-energy measurements for concrete?

Sixteen notched concrete beams with , 0.5, 0.7 were tested in three-point bending—eight in strain control and eight in load control. The time to peak load was kept approximately the same for both cases for a given notch depth. The load-displacement traces were very similar and equivalent energy values agreed well in most cases. However the fracture-energy values based on the RILEM proposed specification were affected by the type of response control used. Paper was presented at the 1986 SEM Spring Conference on Experimental Mechanics held in New Orleans, LA on June 8–13.     

Topological finiteness for edge-vertex enumeration

The number of PL-homeomorphism types of combinatorial manifolds in a fixed dimension with an upper bound on g₂ is finite.     

Review of current notations,with recommendations,on fracture toughness testing of concrete and rock

Experimental Techniques -