ultimate strength


Also found in: Dictionary, Thesaurus, Medical, Financial, Wikipedia.

ultimate strength

[′əl·tə·mət ′streŋkth]
(mechanics)
The tensile stress, per unit of the original surface area, at which a body will fracture, or continue to deform under a decreasing load.

Ultimate strength

The highest load that a piece can sustain before failing.

ultimate strength

Of a material in tension, compression, or shear: the maximum value of tension, compression, or shear, respectively, that the material can sustain without failure.

ultimate strength

As it pertains to the strength of materials, it is the quantum of stress beyond which the material will fail. See strain and ultimate load.
References in periodicals archive ?
Structures that do not meet the assessment requirements through screening, design level analysis, or ultimate strength analysis will need mitigation actions.
[P.sub.y], [P.sub.m], and [P.sub.u] are the yield strength, the ultimate strength, and the damage strength, respectively, of the specimen.
When the static stress was up to ~85% of the rock's ultimate strength and the axial strain was up to 80% of the ultimate failure strain, the rock became sensitive to impact load and tended to failure.
(1) A relatively simple methodology for the prediction of axial yield and ultimate strength based on the assumption of an angle of twist of annealed solid and hollow cylindrical bars was presented.
In this section, the effects of the different opening ratios on the stiffness, ductility and ultimate strength are studied.
In the case of the ultimate strength, however, SM490 exhibited a higher increase rate after the steel fiber reinforcement.
So we assumed that the ultimate strength was equal to cracking strength for the brittle failure mode of GB-1~4.
Table 5 shows the comparisons between the predicted values of the nominal yield strength [f.sub.syc] and ultimate strength [f.sub.suc] for the corroded high strength rebars of the modified J-C model with experiments.
A t-test comparison of ultimate strength showed that the UTS of the two-step aged material was statistically lower than the one-step aged (p = 0.0259).
Interaction effect, signal to noise ratio (S/N) and mean response were developed and evaluate the influence of each pulsed current parameter at each levels & to calculate percentage of influence by pulsed current parameters on weld strength such as yield strength, ultimate strength and elongation (%) during PCTIG welding of Al-SiC composite.
The presence of residual stresses in conjunction with high values of axial loads affects the spread of plasticity throughout the height of the steel section and hence may significantly influence both the ultimate strength capacity and inelastic deformability of the composite steel-concrete cross-section.
In this section, in order to investigate the effect of prestress on the yield strength, ultimate strength and ductility of RC (reinforced concrete) beam, SRC (steel reinforced concrete) beam, and the changes of mechanical properties of beam after built-in H-steel, four same size numerical models were made, which are prestressed steel reinforced concrete (PSRC) beams, steel reinforced concrete (SRC) beams, prestressed reinforced concrete (PRC) beams, and reinforced concrete (RC) beams, and their mechanical properties were analyzed.