Oxprenolol reduces transient stress

1982 ◽  
Vol 2 (1) ◽  
pp. 13-13
Author(s):  
Derek A. Pocock ◽  
Ali A. Landauer
Keyword(s):  
Transient Stress

Simulation of Heat Stress and Fatigue on Engine Case

2013 ◽  
Vol 397-400 ◽  
pp. 413-417
Author(s):  
Chang Hui Hou ◽  
Hong Li Fan ◽  
Qian Sang ◽  
Ji Ping Lu
Keyword(s):  
Heat Stress ◽  
Fatigue Life ◽  
Working Conditions ◽  
Research Result ◽  
High Stress ◽  
Heat Distribution ◽  
Transient Stress ◽  
Working Stress ◽  
Maximal Stress ◽  
Safe Working

In this paper, a model of an engine case is designed in Pro/Engineer for fatigue simulation. The meshing is created by the way of Abaqus. According to the working conditions, the boundary restriction of the simulation is defined. By the simulation, the heat distribution of the engine case is given, the causes of relatively high temperature areas are discussed, and the heat-stress distribution is drawn too. The high stress area in the engine case is discovered. The simulation result shows that the steady working stress is about 60MPa, the transient stress is between 90MPa to 120MPa, and the maximal stress is 136MPa. Based on the heat stress the fatigue life of the engine case is analyzed. The research result is a reference of the engine case safe working.

The thermomechanical stress-strain response of intumescent mat materials through experiments and strain decomposition

2002 ◽  
Vol 37 (3) ◽  
pp. 187-199 ◽  
Author(s):  
H. J Kim ◽  
J. S Kim ◽  
M. E Walter ◽  
J. K Lee
Keyword(s):  
Constitutive Modelling ◽  
Load Control ◽  
Strain Response ◽  
Stress Strain ◽  
Dead Weight ◽  
Transient Stress ◽  
Thermomechanical Stress ◽  
Decomposition Procedure ◽  
Property Changes ◽  
Strain Responses

Intumescent mat materials in catalytic converters undergo chemical reactions that lead to material property changes and volume expansion during heating processes. Dead weight (load control) and displacement control compression experiments have been performed to explore static and transient stress-strain responses. The apparatus and methods for both experiments are described. The experimental results together with a strain decomposition procedure yield a master curve that can be employed for constitutive modelling.

Application of Moire Methods to the Determination of Transient Stress and Strain Distributions

1962 ◽  
Vol 29 (1) ◽  
pp. 23-29 ◽  
Author(s):  
W. F. Riley ◽  
A. J. Durelli
Keyword(s):  
Strain Distribution ◽  
Stress And Strain ◽  
Two Dimensional ◽  
Distribution Problem ◽  
Principal Stresses ◽  
Transient Stress ◽  
Optical Phenomenon ◽  
Moiré Effect ◽  
Fringe Patterns

When two arrays of lines are superimposed an optical phenomenon known as the moire effect is observed under certain conditions. This moire effect is used by the authors to determine the distribution of transient strains on the surface of two-dimensional bodies. The method can be used to solve completely the strain-distribution problem or it can be used in combination with photoelasticity to separate the principal stresses. The methods used in interpreting the moire fringe patterns and the techniques used to produce the patterns are described in the paper. Two applications are discussed.

Experimental observation and numerical simulation of transient “stress fangs” within flowing molten polyethylene

2001 ◽  
Vol 45 (6) ◽  
pp. 1261-1277 ◽  
Author(s):  
K. Lee ◽  
M. R. Mackley ◽  
T. C. B. McLeish ◽  
T. M. Nicholson ◽  
O. G. Harlen
Keyword(s):  
Numerical Simulation ◽  
Experimental Observation ◽  
Transient Stress

scholarly journals Transient Stress Response of ER Suspension

1992 ◽  
Vol 20 (2) ◽  
pp. 73-77 ◽  
Author(s):  
Katsufumi TANAKA ◽  
Kiyohito KOYAMA ◽  
Tamotsu YOSHIDA
Keyword(s):  
Stress Response ◽  
Transient Stress

scholarly journals Changes in rearfoot strike patterns over childhood

Kinesiology ◽  
2021 ◽  
Vol 53 (2) ◽  
pp. 336-342
Author(s):  
Pedro Ángel Latorre Román ◽  
Juan Antonio Párraga Montilla ◽  
Jeśús Salas Sánchez ◽  
Pedro José Consuegra González
Keyword(s):  
Cohort Study ◽  
Stress Wave ◽  
Age Groups ◽  
The Body ◽  
Longitudinal Cohort Study ◽  
Transient Stress ◽  
Longitudinal Cohort ◽  
Impact Forces ◽  
Prospective Longitudinal ◽  
Prospective Longitudinal Cohort

Rearfoot strike (RFS) in children running produces impact forces that give rise to a transient stress wave traveling through the body. It could contribute to the development of injuries. The purpose of this study was to determine RFS prevalence during childhood while running at a self-selected velocity in a prospective longitudinal cohort study. A total of 175 children (68 girls), aged 6 to 14 years, participated in this study. The sample was divided into three age groups (age in 2016): 6-8 years, 9-11 years, and 12-14 years which were analysed three years later (2019). 2D video-based was used to record the RFS Taking into account all samples, in the jogging trial the prevalence of RFS (an average of both feet) was 86.9% in 2016 and 94.7% three years later; in the running trial the prevalence was 82.6 and 94.4%, respectively. In all samples a significant increase of RFS prevalence was found in both the jogging and running trials for both feet over three years (jogging, left foot, p=.011, right foot, p=.023; running, left foot, p=.001, right foot, p<.001). In girls, there were no significant differences in any conditions. In boys, a significant increase of RFS prevalence was found after three years in both feet (p<.01) in the running trial. This study shows that RFS prevalence in children increases with age and the results may be used to characterize typical running development in children population.

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