scholarly journals An experimental and numerical study of the strain rate effects on mild steel for cyclic loading

2012 ◽  
Author(s):  
Adam Walker
Keyword(s):  
Cyclic Loading ◽  
Mild Steel ◽  
Strain Rate ◽  
Numerical Study ◽  
Strain Rate Effects ◽  
Rate Effects

Effects of Strain Rate on Reinforced Concrete Beam

2011 ◽  
Vol 243-249 ◽  
pp. 4033-4036 ◽  
Author(s):  
Min Li ◽  
Hong Nan Li
Keyword(s):  
Reinforced Concrete ◽  
Cyclic Loading ◽  
Strain Rate ◽  
Failure Mode ◽  
Loading Rate ◽  
Concrete Beams ◽  
Reinforced Concrete Beams ◽  
Strain Rate Effects ◽  
Shear Span ◽  
Rate Effects

The strain-rate effects of reinforced concrete beams are studied in this paper. Considering the strain-rate effects of structural material, dynamic responses of reinforced concrete beams subjected to monotonic loading and cyclic loading at different loading rates that might be experienced during earthquakes are simulated using the nonlinear finite element program ABAQUS. The influences of loading rate on loading capability and failure mode of reinforced concrete beams are investigated. The results show that as the loading rate increases, the loading capability increases, the increment is associated with the shear span ratio and loading mode. The increment at cyclic loading is smaller than that at monotonic loading; as the shear span ratio changes, the failure mode changes, the increment changes; the failure mode has nothing to do with the loading rate.

Experimental and numerical study of strain-rate effects on the IFF fracture angle using a new efficient implementation of Puck’s criterion

2017 ◽  
Vol 181 ◽  
pp. 325-335 ◽  
Author(s):  
Daniel M. Thomson ◽  
Hao Cui ◽  
Borja Erice ◽  
Justus Hoffmann ◽  
Jens Wiegand ◽  
...  
Keyword(s):  
Strain Rate ◽  
Numerical Study ◽  
Efficient Implementation ◽  
Strain Rate Effects ◽  
Fracture Angle ◽  
Rate Effects

Analytical and Numerical Study of Early-Time Response in Pulse-Loaded Visco-Elastic Composites

2011 ◽  
Vol 82 ◽  
pp. 214-219
Author(s):  
Karl Micallef ◽  
Arash Soleiman-Fallah ◽  
Paul T. Curtis ◽  
Daniel J. Pope ◽  
Luke A. Louca
Keyword(s):  
Wave Propagation ◽  
Differential Equations ◽  
Strain Rate ◽  
Numerical Solutions ◽  
Numerical Study ◽  
Early Time ◽  
Hyperbolic Partial Differential Equations ◽  
Weighted Residual Method ◽  
Strain Rate Effects ◽  
Rate Effects

Hyperbolic partial differential equations with one space variable are used to investigate the longitudinal wave propagation through an elastic composite medium. A high order Lagrangian finite element is used to model the wave propagation and the weak-form Galerkin weighted residual method is adopted for solving the governing differential equations, viz., the one-dimensional wave equation which is extended to include damping and strain-rate effects. The numerical solutions are compared to analytical solutions (where they exist) and excellent temporal and spatial correlation is achieved, within 90-95% accuracy. It is found that damping leads to a decrease in peak stresses and strains by up to 11% for 5% of critical damping, even during the direct loading phase. It is shown that the inclusion of strain-rate did not have an effect on strains but led to an increase in stresses by almost 95%. The inclusion of both damping and strain-rate effects together increased stress values by up to 70% compared to the non-viscous cases.

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