proportional limit


Also found in: Dictionary, Thesaurus, Medical, Legal, Financial.
Related to proportional limit: rupture strength, modulus of resilience, ultimate stress

proportional limit

[prə′pȯr·shən·əl ′lim·ət]
(mechanics)
The greatest stress a material can sustain without departure from linear proportionality of stress and strain.

proportional limit

The greatest stress which a material is capable of sustaining without any deviation from Hooke’s law.
References in periodicals archive ?
pl] are the stress and strain of proportional limit under torsion.
The simple linear relationship between stress and strain below the proportional limit can be exploited by FEA to perform quick and accurate analyses.
The research conducted herein focused on nondestructive identification of damage in wood that has occurred via bending load in excess of the proportional limit, yet below breaking strength.
Bark blocks tested in the radial direction gave very low values for both the modulus of elasticity and the stress at proportional limit.
This work is a part of a larger research effort to establish a usable computer program for the design of all timber to timber and timber to steel joint stiffness and proportional limit strength.
The compressive properties such as Young's modulus, proportional limit stress, and compressive strength were obtained from the stress-strain relation.
Several uniaxial tension tests of the specimens with the off-axis angles of+45[degrees]/-45[degrees], 45[degrees], 15[degrees], and 20[degrees] were conducted, and the shear properties such as shear modulus, shear stress at the proportional limit, and shear strength were obtained from the shear stress/shear strain relation.
Young's modulus, proportional limit stress, and bending strength were calculated by substituting the parameters obtained by the regression into the equations derived from elementary bending theory.
Load deformation data (joint stiffness, proportional limit, 5percent offset yield load and ultimate load) were analyzed using analysis of variance techniques to gauge influence of varying end distance.
Elastic modulus and stress at the proportional limit were determined from each load-displacement curve.

Full browser ?