Методический подход и программа для оценки нагруженности, дефектности…
ISSN 0236-3941. Вестник МГТУ им. Н.Э. Баумана. Сер. Машиностроение. 2017. № 5
73
Просьба ссылаться на эту статью следующим образом:
Чернятин А.С., Разумовский И.А. Методический подход и программа для оценки
нагруженности, дефектности и деградации свойств материалов конструкций на основе
обработки экспериментальных данных // Вестник МГТУ им. Н.Э. Баумана. Сер. Маши-
ностроение. 2017. № 5. С. 64–74. DOI: 10.18698/0236-3941-2017-5-64-74
METHODOLOGICAL APPROACH AND SOFTWARE FOR LOADS,
DEFECTS AND DEGRADATION OF MECHANICAL CHARACTERISTICS
IN STRUCTURAL MATERIALS, BASED ON PROCESSING
EXPERIMENTAL DATA
A.S. Chernyatin
1
cas@inbox.ruI.A. Razumovskiy
2
murza45@gmail.com1
Bauman Moscow State Technical University, Moscow, Russian Federation
2
Mechanical Engineering Research Institute of the Russian Academy
of Sciences (IMASH RAN), Moscow, Russian Federation
Abstract
Keywords
The article deals with the basics of an experimental com-
putational method to assess of loads, defects and defor-
mation characteristics of materials based on mathemati-
cally processing experimentally obtained displacement or
strain fields caused by exposing the object under consi-
deration to certain factors (varying the load, drilling a
small hole, indentation etc.). We base our method on
determining the parameters desired so as to minimise the
objective function describing the discrepancy between
considerable arrays of experimental data and the results
of a series of finite element computations aimed at solving
model problems. We supply example solutions of model
problems dealing with determination of loads and dimen-
sions of surface and subsurface defects on full scale ob-
jects, as well as with simultaneously determining existing
stresses and the yield point in a material by means of
processing residual displacement fields caused by using a
spherical indenter to the load workpiece zone under
consideration and subsequent unloading
Load and defect assessment, finite ele-
ment method, optical digital methods of
displacement investigation, indentation
method, optimisation problem
REFERENCES
[1] Rastogi P.K., ed. Digital speckle pattern interferometry and related techniques. John
Wiley & Sons, 2000. 384 p.
[2] Schreier N., Orteu J.-J., Sutton M. Image correlation for shape. Motion and deformation
measurements. Basic concepts, theory and applications. Springer, 2009. 322 p.
[3] Rasumovsky I.A. Interference-optical methods of solid mechanics. Springer, 2011. 180 p.