Application of Bodner Viscoplastic Theory to Pressure-Shear Plate Impact Experiment

1990 ◽  
Vol 112 (1) ◽  
pp. 52-55 ◽  
Author(s):  
A. Gilat ◽  
J. Tsai

An application of the unified elastic-viscoplastic constitutive theory of Bodner [5] is presented. The material parameters in the theory, which includes directional hardening, are determined from results of uniaxial stress tests at constant strain rates. The constitutive equations are then used in numerical modeling of pressure-shear plate impact experiment. The results show that the measured normal component of the wave agrees well with the calculated profile. A small discrepancy, which can be accounted for by the presence of a Bauschinger effect, exists between the theoretical and the experimental shear component of the wave profiles.

2020 ◽  
Author(s):  
T. Jiao ◽  
P. Malhotra ◽  
R. J. Clifton

2018 ◽  
Author(s):  
Christian Kettenbeil ◽  
Michael Mello ◽  
Tong Jiao ◽  
Rodney J. Clifton ◽  
Guruswami Ravichandran

1989 ◽  
Vol 111 (4) ◽  
pp. 614-619 ◽  
Author(s):  
K. T. Ramesh

Results are presented of pressure-shear plate impact experiments performed on a traction fluid. The overall behavior of this material appears to be very similar to that of elastohydrodynamic (EHD) lubricants such as 5P4E: the material exhibits a saturation of the flow stress with strain rate, and a nearly linear dependence of the critical shear stress on the applied pressure. The plate impact results are compared with those of other workers using completely different experimental techniques and operating at lower strain rates and much lower pressures. The results obtained from the various techniques are in general agreement.


1997 ◽  
Vol 119 (3) ◽  
pp. 590-593 ◽  
Author(s):  
K. J. Frutschy ◽  
R. J. Clifton

A new pressure-shear plate impact experiment is described for measuring the friction between two sliding surfaces at high temperature. Additionally, the techniques developed for this experiment extend the capability of the general pressure-shear experiment so that the shear strength of materials can be measured at high temperatures.


2021 ◽  
Vol 13 (10) ◽  
pp. 5675
Author(s):  
Josip Brnic ◽  
Marino Brcic ◽  
Sebastian Balos ◽  
Goran Vukelic ◽  
Sanjin Krscanski ◽  
...  

Knowledge of the properties and behavior of materials under certain working conditions is the basis for the selection of the proper material for the design of a new structure. This paper deals with experimental investigations of the mechanical properties of unalloyed high quality steel S235JRC + C (1.0122) and its behavior under conditions of high temperatures, creep and mechanical fatigue. The response of the material at high temperatures (20–700 °C) is shown in the form of engineering stress-strain diagrams while that at creep behavior (400–600 °C) is shown in the form of creep curves. Furthermore, based on uniaxial fully reversed mechanical fatigue tests (R=−1), a stress-life (S-N) fatigue diagram has been constructed and the fatigue (endurance) limit of the material is calculated The experimentally determined value of tensile strength at room temperature is 534 MPa. The calculated value of the fatigue limit, also at room temperature, using the modified staircase method and based on the mechanical fatigue tests data, is 202 MPa. With regard to creep resistance, steel 1.0122 can be considered creep-resistant only at a temperature of 400 °C and at an applied stress not exceeding 50% of the yield strength corresponding to this temperature.


Sign in / Sign up

Export Citation Format

Share Document