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These graphs show 15 test data curves, with seven curves (Tests 712, 563, 113, 1223, 223, 1063, and 1019) on the first graph and eight curves (Tests 1201, 1124, 1073, 308, 718, 1323, 652, and 418) on the second graph. The x-axes are deflection in inches between 0 and 10 (0 and 254 mm). The y-axes are force in kips between 0 and 20 kips (0 and 90 kN). On the first graph, four curves (563, 113, 1223, 223) increase in force from 0 to between 9.5 and 11.5 kips over 1.3 inches in deflection, followed by sudden drop in force indicative of sudden post failure (as well as gage failure). The fifth curve increases in force from 0 to 12.5 kips over 1.8 inches, followed by sudden failure. The remaining two curves exhibit a more ductile behavior. One curve (1019) reaches a peak force of approximately 12.5 kips in two inches, then maintains that force until 3.1 inches, followed by a gradual reduction in strength to 4 kips at 8 inches. The other curve (712) reaches a peak force of approximately 16 kips in 3 inches, then maintains that force until 4.4 inches, followed by sudden failure. On the second graph, three curves (1201, 718, and 1124) increase in force from 0 to about 9 kips over 1.3 to 1.5 inches in deflection, followed by sudden drop in force indicative of sudden post failure. Two curves (1323 and 652) increases in force from 0 to 10 kips over 1.5 inches, followed by a more gradual increase in force to 11 kips by 2.7 inches, followed by sudden failure. One curve (418) increases in force from 0 to 13.2 kips in 1.9 inches followed by sudden failure. The remaining two curves exhibit a more ductile behavior. One curve (1201) reaches a peak force of approximately 8 kips in two inches, then maintains that force until 4.3 inches, followed by failure. The other curve (1073) reaches a peak force of approximately 5 kips in 1.5 inches, then maintains that force until 4.3 inches, followed by gradual failure.
These graphs show 15 test data curves, with seven curves (Tests 712, 563, 113, 1223, 223, 1063, and 1019) on the first graph and eight curves (Tests 1201, 1124, 1073, 308, 718, 1323, 652, and 418) on the second graph. The x-axes are deflection in inches between 0 and 10 (0 and 254 mm). The y-axes are energy in kip-inches between 0 and 100 kip-inches (0 and 11,300 kN-mm). These curves represent the area under the force-deflection curves just discussed. All curves show a steep increase in energy over about the first 5-inches of deflection, followed by a more gradual increase over the 10 inches of the graph. On the first graph, curve 712 increases from 0 to 58 kip-inches in 5 inches and 63 kip-inches in 9.2 inches. Curve 563 increases from 0 to 20 kip-inches in 4 inches and 21 kip-inches in 9 inches. Curve 113 increases from 0 to 10 kip-inches in 1.5 inches and 15 kip-inches in 10 inches. Curve 1223 increases from 0 to 20 kip-inches in 4 inches and 28 kip-inches in 10 inches. Curve 223 increases from 0 to 33 kip-inches in 5 inches and 43 kip-inches in 8.8 inches. Curve 1063 increases from 0 to 21 kip-inches in 4 inches and 42 kip-inches in 9.7 inches. Curve 1019 increases from 0 to 40 kip-inches in 4 inches and 61 kip-inches in 8.3 inches. On the second graph, curve 1201 increases from 0 to 31 kip-inches in 4.6 inches. Curve 1124 increases from 0 to 29 kip-inches in 4.2 inches and 39 kip-inches in 9.2 inches. Curve 1073 increases from 0 to 22 kip-inches in 5 inches and 34 kip-inches in 9.2 inches. Curve 308 increases from 0 to 37 kip-inches in 5 inches and 42 kip-inches in 10 inches. Curve 718 increases from 0 to 17 kip-inches in 4 inches and 28 kip-iinches in 8.6 inches. Curve 1323 increases from 0 to 28 kip-inches in 3.5 inches and 29 kip-inches in 10 inches. Curve 652 increases from 0 to 10 kip-inches in 2 inches and 18 kip-inches in 10 inches. Curve 418 increases from 0 to 18 kip-inches in 4 inches and 37 kip-inches in 9.2 inches.
FHWA-HRT-05-096
