Material Behavior in Wires of 1100 Aluminum Subjected to Transverse Impact

1968 ◽  
Vol 35 (2) ◽  
pp. 342-348 ◽  
Author(s):  
A. B. Schultz
Keyword(s):  
Impact Loading ◽  
Uniform Elongation ◽  
Material Behavior ◽  
Transverse Impact ◽  
Stress Strain ◽  
Strain Relation ◽  
Stress Strain Relation ◽  
Independent Analysis ◽  
High Loading Rate ◽  
Critical Impact Velocity

Material behavior in wires of 1100 aluminum subject to tensile impact loading is examined. Room temperature behavior is observed over the entire range of the stress-strain relation by observation of strain and deformation angle behind the transverse wave front created by a constant-velocity, transverse impact on a wire. A rate-independent analysis of plastic-wave propagation is used in conjunction with experimental data to derive the dynamic stress-strain relation, which is found to depart significantly from the quasi-static relation. The stress required to produce a given strain is raised by impact loading, and the critical impact velocity is higher than that predicted from the quasi-static relation. The uniform elongation at failure does not appear to be affected. Results are reasonably consistent with the data reported from several other types of high loading rate experiments.

A stress-strain relation for inelastic material behavior

1963 ◽  
Vol 275 (2) ◽  
pp. 98-106 ◽  
Author(s):  
Sharad A. Patel ◽  
B. Venkatraman ◽  
James Bentson
Keyword(s):  
Material Behavior ◽  
Stress Strain ◽  
Strain Relation ◽  
Stress Strain Relation ◽  
Inelastic Material

An Advanced Cap Model for Concrete Materials

2003 ◽  
Author(s):  
C. S. Tsai ◽  
Ching-Shyang Chen ◽  
Yong-Zhang Lin ◽  
Bo-Jen Chen ◽  
J. C. Chen
Keyword(s):  
Material Behavior ◽  
Constitutive Law ◽  
Octahedral Plane ◽  
Sensitive Material ◽  
Stress Strain ◽  
Strain Relation ◽  
Stress Strain Relation ◽  
Highly Nonlinear ◽  
Cap Model ◽  
Concrete Materials

Concrete is a pressure-sensitive material. To ensure the safety of structures, it is required to understand the mechanical behavior of concrete. The stress-strain relation of concrete is highly nonlinear and pressure dependent. Therefore, design problems involving concrete materials need an appropriate constitutive model to quantify its stress-strain relation. Presented in this paper is a new cap-type constitutive law for concrete. The model is prominent in the sense that it satisfies the compatibility between the failure surface and the yield cap. It has modified the classical cap model to obtain smooth yield surfaces. In addition, the model effectively describes strength variations along various directions in the octahedral plane. The model has shown to realistically predict concrete responses in experiments by 7 parameters. The proposed concept can also be extended to include as many previous models for describing various observed material behavior as it is required.

scholarly journals Limit analysis of narrow support elements in W7-X considering the serration effect of the stress–strain relation at 4K

2011 ◽  
Vol 86 (6-8) ◽  
pp. 1462-1465 ◽  
Author(s):  
E. Briani ◽  
C. Gianini ◽  
F. Lucca ◽  
A. Marin ◽  
J. Fellinger ◽  
...  
Keyword(s):  
Limit Analysis ◽  
Stress Strain ◽  
Strain Relation ◽  
Stress Strain Relation

Analytical stress-strain relation for soils

2021 ◽  
Author(s):  
Kristian Krabbenhoft ◽  
J. Wang
Keyword(s):  
Test Data ◽  
Narrow Range ◽  
Strain Range ◽  
Data Sets ◽  
Soil Tests ◽  
Stress Strain ◽  
Strain Relation ◽  
Stress Strain Relation ◽  
Typical Test ◽  
Typical Soil

A new stress-strain relation capable of reproducing the entire stress-strain range of typical soil tests is presented. The new relation involves a total of five parameters, four of which can be inferred directly from typical test data. The fifth parameter is a fitting parameter with a relatively narrow range. The capabilities of the new relation is demonstrated by the application to various clay and sand data sets.

Stress-Strain Relations and Vibrations of a Granular Medium

1957 ◽  
Vol 24 (4) ◽  
pp. 585-593
Author(s):  
J. Duffy ◽  
R. D. Mindlin
Keyword(s):  
Energy Dissipation ◽  
Contact Forces ◽  
Face Centered Cubic ◽  
Stress Strain ◽  
Differential Stress ◽  
Elastic Bodies ◽  
Strain Relation ◽  
Stress Strain Relation ◽  
Face Centered ◽  
Experimental Values

Abstract A differential stress-strain relation is derived for a medium composed of a face-centered cubic array of elastic spheres in contact. The stress-strain relation is based on the theory of elastic bodies in contact, and includes the effects of both normal and tangential components of contact forces. A description is given of an experiment performed as a test of the contact theories and the differential stress-strain relation derived from them. The experiment consists of a determination of wave velocities and the accompanying rates of energy dissipation in granular bars composed of face-centered cubic arrays of spheres. Experimental results indicate a close agreement between the theoretical and experimental values of wave velocity. However, as in previous experiments with single contacts, the rate of energy dissipation is found to be proportional to the square of the maximum tangential contact force rather than to the cube, as predicted by the theory for small amplitudes.

scholarly journals CONCENTRIC LOADING TESTS OF CONCRETE FILLED SPIRAL STEEL TUBES AND STRESS-STRAIN RELATION OF CONCRETE CONFINED BY STEEL TUBES

2009 ◽  
Vol 65 (4) ◽  
pp. 548-563 ◽  
Author(s):  
Mitsuyoshi AKIYAMA ◽  
Hideki NAITO ◽  
Kiyoshi ONO ◽  
Nobutaka SHIRAHAMA ◽  
Daisuke MATSUMOTO ◽  
...  
Keyword(s):  
Stress Strain ◽  
Steel Tubes ◽  
Strain Relation ◽  
Stress Strain Relation ◽  
Loading Tests ◽  
Concentric Loading
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