A Relationship Between Theory and Experiment for A State Variable Constitutive Equation

Download this report (PDF, 0.46 MB, 28 pages)
Report Number: AFWAL TR 80-4194
Author(s): Stouffer, D. C., Bodner, S. R.
Corporate Author(s): University of Cincinnati; Technion-Israel
Laboratory: Materials Laboratory
Date of Publication: 1981-01
Pages: 28
Contract: F33615-78-C-5199
DoD Project: 2307
DoD Task: 2307P1
Identifier: ADA098652

Abstract:
A state variable constitutive equation that can be solved for the state variables, can then be used to calculate the state variable histories from the stress and strain histories observed during an experiment. This was done using the Bodner Partom flow equation for cast and wrought Rene 95 at 650 C. The evolution equation was determined for a state variable that characterizes the resistance to plastic flow and some properties of a damage state variable were established. Analysis of the tensile and creep data strongly suggested that two different mechnisms were active during deformation. A limited number of experimental results were compared to the response calculated from the flow and evolution equations.

Provenance: IIT

Other options for obtaining this report:

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a pdf download of the report, exists at DTIC

Via National Technical Report Library:
This report may be available for download from NTRL. Use the Title from this record to locate the item in DTIC Online

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
There has been no verification of an indication of public availability from an inside cover statement



Export