scholarly journals Stress state of semi-infinite plane with absolutely rigid inclusion and crack.

2015 ◽  
Vol 68 (1) ◽  
pp. 25-36 ◽  
Author(s):  
V.N. Hakobyan ◽  
H.A. Amirjanyan
Keyword(s):  
Stress State ◽  
Rigid Inclusion ◽  
Infinite Plane

scholarly journals Plane stress state of a strip weakened by a crack

2019 ◽  
pp. 182-185
Author(s):  
V. V. Reut ◽  
Yu. V. Molokanov
Keyword(s):  
Stress State ◽  
Plane Stress ◽  
Integral Transform ◽  
Longitudinal Crack ◽  
Singular Integral Equations ◽  
Infinite Strip ◽  
Infinite Plane ◽  
Transform Method ◽  
One Dimensional ◽  
The One

The plane stress elastic infinite strip problem of a finite longitudinal crack is investigated. The method that can be applied to calculate the stress state and the displacements for an infinite and semi-infinite strip with the longitudinal crack and arbitrary configuration of the boundary conditions is proposed. The main advantage of this method lies in the absence of necessity for use of the apparatus of the matrix differential calculus. Initial problem is reduced to the one-dimensional boundary value problem with the help of the generalized scheme of the integral transform method. By using the inverse integral Fourier transform, the one-dimensional problem is reduced to solving of the system of singular integral equations on a finite interval. The solution of this system was constructed with the help of the method of orthogonal polynomials by means of the second kind Chebyshev polynomials series expansion of the unknown functions. A graph of dependence of the stress intensity factor (SIF) on the geometric parameters of the problem is plotted. It is shown that the SIF for the case of the said strip tends to the SIF for the case of an infinite plane as the width of the strip approaches infinity.

Stress State of a Compound Plane with Interface Absolutely Rigid Inclusion and Crack Having Common Tip

2021 ◽  
pp. 225-237
Author(s):  
Vahram Hakobyan ◽  
Avetik Sahakyan ◽  
Harutyun Amirjanyan
Keyword(s):  
Stress State ◽  
Rigid Inclusion

Short Stress State Questionnaire

2015 ◽  
Vol 31 (1) ◽  
pp. 20-30 ◽  
Author(s):  
William S. Helton ◽  
Katharina Näswall
Keyword(s):  
Stress State ◽  
Factor Structure ◽  
Human Performance ◽  
Self Report ◽  
Confirmatory Factor ◽  
Stress States ◽  
Related Stress ◽  
Using Data ◽  
Task Conditions ◽  
Multiple Samples

Conscious appraisals of stress, or stress states, are an important aspect of human performance. This article presents evidence supporting the validity and measurement characteristics of a short multidimensional self-report measure of stress state, the Short Stress State Questionnaire (SSSQ; Helton, 2004 ). The SSSQ measures task engagement, distress, and worry. A confirmatory factor analysis of the SSSQ using data pooled from multiple samples suggests the SSSQ does have a three factor structure and post-task changes are not due to changes in factor structure, but to mean level changes (state changes). In addition, the SSSQ demonstrates sensitivity to task stressors in line with hypotheses. Different task conditions elicited unique patterns of stress state on the three factors of the SSSQ in line with prior predictions. The 24-item SSSQ is a valid measure of stress state which may be useful to researchers interested in conscious appraisals of task-related stress.

Sign in / Sign up

Export Citation Format

Share Document