Simultaneous measurement of the component of the stress and strain tensors and determination of the elastic constants for a rock

1974 ◽  
Vol 10 (6) ◽  
pp. 659-663 ◽  
Author(s):  
G. I. Kulakov
Keyword(s):  
Elastic Constants ◽  
Simultaneous Measurement ◽  
Stress And Strain ◽  
Strain Tensors

scholarly journals BRITTLE DESTRUCTION OF INCOMPRESSIBLE MATERIAL DURING FLAT STRAIN

2019 ◽  
Vol 2 (5) ◽  
pp. 89-97
Author(s):  
Anvar Chanyshev ◽  
Olga Belousova ◽  
Olga Lukyashko
Keyword(s):  
Incompressible Material ◽  
Stress And Strain ◽  
System Of Differential Equations ◽  
Stress Strain ◽  
Uniform Compression ◽  
Strain Behavior ◽  
Destruction Zone ◽  
Strain Tensors ◽  
Brittle Destruction

In the paper stress-strain behavior of solid during flat strain in case of its volumetric incompressible behavior and ideally brittle destruction is studied. Parameters of the system of differential equations of balance and its correlations are obtained. In this case, condition of stress and strain tensors axiality is used. Boundary problem for determination of stress-strain behavior at destruction zone is formulated. As example, equations of ideally brittle out-of-limit deformation of solid in form of rectangular plate (pillar) during uniform compression are considered. It is shown that when displacement of side border of the plate is observed, it is possible to predict its destructions.

Determination of Diffraction Elastic Constants of Gamma-Double-Prime in Polycrystalline Ni-Base Superalloys

2019 ◽  
Author(s):  
R.Y. Zhang ◽  
H.L. Qin ◽  
Z.N. Bi ◽  
J. Li ◽  
S. Paul ◽  
...  
Keyword(s):  
Elastic Constants

Brillouin-scattering determination of the elastic constants of epitaxial fccC60film

1995 ◽  
Vol 52 (12) ◽  
pp. R8707-R8710 ◽  
Author(s):  
D. Fioretto ◽  
G. Carlotti ◽  
G. Socino ◽  
S. Modesti ◽  
C. Cepek ◽  
...  
Keyword(s):  
Elastic Constants ◽  
Brillouin Scattering

Consideration of Environmentally Assisted Fatigue in Austenitic Stainless Steel: Calculation and Practical Application

2012 ◽  
Author(s):  
Sven H. Reese ◽  
Johannes Seichter ◽  
Dietmar Klucke
Keyword(s):  
Primary Circuit ◽  
Stress And Strain ◽  
Loading Conditions ◽  
Practical Application ◽  
Circuit Component ◽  
Detailed Assessment ◽  
The Mean ◽  
Fatigue Evaluation ◽  
Assessment Procedures

The influence of LWR coolant environment to the lifetime of materials has been discussed recent years. Nowadays the consideration of environmentally assisted fatigue is under consideration in Codes and Standards like ASME and the German KTA Rules (e.g. Standard No. 3201.2 and Standard No. 3201.4) by means of so called attention thresholds. Basic calculation procedures in terms of quantifying the influence of LWR coolant environment by the Fen correction factor were proposed by Higuchi and others and are given in NUREG/CR-6909. This paper deals with the application of the proposed assessment procedures of ANL and the application to plant conditions. Therefore conservative assessment procedures are introduced without assuming the knowledge of detailed stress and strain calculations or temperature transients. Additionally, detailed assessment procedures based on Finite-Element calculations, respecting in-service temperature measurements including thermal reference transients and complex operational loading conditions are carried out. Fatigue evaluation of a PWR primary circuit component is used in order to evaluate the influence of plant like conditions numerically. Conclusions regarding the practical application are drawn by means of comparing the ANL approach considering laboratory conditions, conservative assessment procedures for the determination of cumulative fatigue usage factors of plant components and detailed assessment procedures. Plant like loading conditions, complex component geometries, loading scenarios and reference temperature transients shall be taken into account. Practical issues like the determination of the mean temperature or the strain rate have to be considered adequately.

Sign in / Sign up

Export Citation Format

Share Document