keywords:"Digital Image Correlation" - Search Results - Digital Repository

guest :: login Digital Repository
		Search		Submit		Help		About

Home > Search Results: keywords:"Digital Image Correlation"

Search:

Search Tips :: Advanced Search

Search collections:

Sort by:	Display results:	Output format:

	Experimental evaluation of strain fields in the vicinity of V-notch in ductile metal Jandejsek, Ivan ; Jiroušek, Ondřej ; Vavřík, Daniel This work deals with the experimental measurement of full-field displacements and strains evaluation on the surface of flat high-ductile aluminum specimens in the vicinity of the V-notch during loading. Two different specimen geometry configurations, boundary and middle notch, are tested and compared in terms of deformation constraint. The enhanced Digital Image Correlation method in conjunction with strain gage measurement is employed for the precise full-field strain evaluation. Detailed record
	Portable Testing Device for In-situ Testing of Building Material Vavřík, Daniel ; Jandejsek, Ivan Examination of brittle buildings materials using mechanical tests requires sampling of studied elements and materials (stones, bricks or concrete). In case of existing integral structures the best suitable sampling method is core drilling. It is preferred to test samples in situ in all cases where it is possible to avoid changes of the material properties during transportation and storing. Moreover it is possible to prepare other samples operationally wen some uncertainty occurred if in situ testing is possible. For such a purpose, a portable testing device has been designed and manufactured. This device is primary devoted for so called split test technique which is based on well know testing of Brazilian disk. Analytical equation used for evaluation of the split test is based on several assumptions which have to be verified. For such verification Digital Image Correlation technique was used in our work. Detailed record
	Experimental Methods for Evaluation of the Energy Balance in Vicinity of the Crack Tip Jandejsek, Ivan ; Vavřík, Daniel This work deals with experimental methodology for comprehensive observation in vicinity of stress concentrator in the high ductile material for the purpose of evaluation of the overall energy balance. The strain and stress fields, level of plasticity and thermal dissipation at the vicinity of the stress concentrator are determined employing combination of simultaneous optical, strain gauge and thermal measurement. Detailed record
	Optimization and Calibration of Digital Image Correlation Method Jandejsek, Ivan ; Valach, Jaroslav ; Vavřík, Daniel An example of instrumentation and optimization of Digital Image Correlation measurement system for given class of experiments is described in this paper. Detailed record
	Image data sequentiality influence on measurement precission of the image correlation method Jahoda, J. ; Valach, Jaroslav The contribution demonstrates improvement of digital image correlation displacement measurement's precission achieved by sequential processing of images acquired on several loading substeps in comparison to the presiccion achiavable by processing only the images of the unloaded and loaded state. Detailed record
	Experimentální měření J integrálu Vavřík, Daniel ; Jandejsek, Ivan Experimental measurement of the J integral on the thin planar specimen is presented. It is possible measure J integral directly as curve integral as it is defined. This approach is not as comfortable as standard measurement on CT specimen but is more appropriate for thin planar specimens. Detailed record
	Použití metody digitální korelace obrazů ve studiu tvarů stěn vysokých nosníků v pokročilé fázi únavových zkoušek Jahoda, J. ; Valach, Jaroslav The paper presents implementation of the digital image correlation method and its application into in-plane deformation measurement, investigation of the shapes of the buckled wall of fatigued steel girders. Detailed record
	Určování aktuální polohy trhliny pomocí metody digitální obrazové korelace Jandejsek, Ivan ; Vavřík, Daniel This paper presents utilization of Digital Image Correlation and other image processing methods in determination of the actual position of the crack during the crack propagation in ductile material. This task is very important in fracture mechanics studies, especially in evaluation of full-field stress and strain in the vicinity of the crack. It encompasses detection of the crack faces, tracing of the crack tip and measuring the crack length. Detailed record
	Mikroradiografické pozorování pole napětí v blízkosti čela trhliny Vavřík, Daniel ; Jandejsek, Ivan ; Jakůbek, J. ; Jakůbek, M. ; Holý, T. Studies concerning ductile fracture mechanics require information about strain field in vicinity of the crack tip. Although it is a quite common problem new challenges occur when we are interested in strain field in micrometric scale, especially in the situation of mixed plane stress-strain mode in vicinity of the crack tip. Micro-radiographically visible structures of alloys or composites can be utilized as markers for such measurement using method of Digital Image Correlation. Detailed record
	Rozvoj a aplikace digitální obrazové korelace Jandejsek, Ivan The presented work devotes to the methodology and related software development for Digital Image Correlation (DIC). DIC is used for experimental mechanics studies. It is the non-contact technique (Optical or X-Ray) that provides full-field and high resolution measurement of displacements and strains within an object subjected to loading. Detailed record

Interested in being notified about new results for this query?
Subscribe to the RSS feed.

Digital Repository :: :: :: ::
Powered by v1.1.2
Maintained by

This site is also available in the following languages:
Česky English