Results 241 to 250 of about 114,713,249 (284)

In-situ stress measurements of sputtered multilayers

SPIE Proceedings, 2010
The mechanical stress induced during the growth of thin films and multilayers is a critical parameter for the fabrication of reflective x-ray optical elements. Strong stress can cause deformation of the optical surface, de-lamination of the respective coating, or even breaking of the underlying substrate. In order to characterize stress in a growing
Ch. Morawe, J.-Ch. Peffen, K. Friedrich
openaire   +1 more source

17. Measurement of in situ Stress

1987
Publisher Summary The state of stress in situ is the result of the superposition of a number of stress fields. This chapter describes the major methods of in situ stress measurement. They have been arranged in three groups: surface, near-surface, and deep methods. Surface measurements of in situ stress are those conducted directly on the free surface
openaire   +1 more source

In-Situ Stress Measurements During Drilling

Journal of Petroleum Technology, 1986
Summary This paper describes the results of six microfracturing experiments in a gas well in south Texas. The experiments were conducted in open hole and during the drilling operations. Microfracturing consisted of pumping very small volumes of drilling mud (tens of gallons) at very low rates (3 to 30 gal/min [189 ...
A.A. Daneshy, G.L. Slusher, P.T. Chisholm, D.A. Magee   +3 more
openaire   +1 more source

Analysis ofin-situ stress measurements

Geotechnical and Geological Engineering, 1997
In order to analysein-situ stress measurements two approaches are discussed. These are eigen-value analysis and statistical techniques such as Arnold, Fisher and Bingham distributions. When these techniques are applied to field data, the results are quite consistent.
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A Comprehensive Approach to in Situ Stress Measurement

Advances in X-ray Analysis, 1985
Recent developments in position sensitive detectors (PSD's), solid state power and computer technologies make it possible to design accurate instruments for in-situ stress measurement. Such instruments require compromises in the interests of portability, size and speed stiich may limit accuracy and/or versatility.
openaire   +1 more source

In Situ Stress Measurement In Singapore

Proceedings of the 18th Southeast Asian Geotechnical Conference (18SEAGC) & Inaugural AGSSEA Conference (1AGSSEA), 2013
Kar Winn, Melvin Ng
openaire   +1 more source

Rapid In-Situ Stress Measurement in Vertical Borehole Based on Borehole Diametrical Deformation Analysis

Rock Mechanics and Rock Engineering, 2023
Zengqiang Han, Yiteng Wang, Chuanying Wang   +2 more
exaly  

A novel in-situ stress measurement method incorporating non-oriented core ground re-orientation and acoustic emission: A case study of a deep borehole

International Journal of Rock Mechanics and Minings Sciences, 2022
Chongjin Li, Xibing Li, Linqi Huang
exaly  

In Situ Stress & Stress Measurement

2007
openaire   +2 more sources

In Situ Stress Measurements in Greece

1980
C. Froidevaux, C. Paquin, C. Angelidis, A. Tzitziras   +3 more
openaire   +1 more source