Localization of delamination in composite test specimen

Sapieta, Milan; Šulka, Peter; Svoboda, Martin

doi:10.1051/matecconf/201815701015

Cited by 5 publications

(8 citation statements)

References 5 publications

(3 reference statements)

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“…This load is determined by the standard according to EN 1991-1-4 [20]. The basic dynamic wind pressure q b on the structure is determined from the relation:…”

Section: Wind Load On the Structurementioning

confidence: 99%

“…Where: q -represents bulk density of air (1.25 kg/m 3 ), v b -basic wind speed. [20] For a simplified assessment of the effect of wind load, it can be assumed that the basic wind speed v b = v b,0 and that in the Czech Republic the initial wind speed is b,0 = 27.5 m/s (in most areas it is smaller or the same, in mountain areas is larger). The maximum value of the dynamic wind pressure on the structure is then determined from the relation:…”

Section: Wind Load On the Structurementioning

confidence: 99%

“…2. [20] The course of the coefficient c e (z) is shown in Fig. 2 for the respective terrain categories.…”

Section: Wind Load On the Structurementioning

confidence: 99%

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Design of T-hangar for aircraft and sports flying sports facilities

Svoboda¹,

Štěrba²

2022

Manufacturing Technology

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This work deals with the construction of a steel hangar with a sheet metal shell for storage sports flying equipment (SPE) or general aviation aircraft. The design of the building was made to ensure an individual approach to each aircraft. The construction was designed with price and safety in mind. An available option is an electronic security system connected to the central security desk via the Internet, mobile phone or other data transmission.T-hangar sport airplane wind load snow load steel construction

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“…This load is determined by the standard according to EN 1991-1-4 [20]. The basic dynamic wind pressure q b on the structure is determined from the relation:…”

Section: Wind Load On the Structurementioning

confidence: 99%

Section: Wind Load On the Structurementioning

confidence: 99%

See 1 more Smart Citation

Design of T-hangar for aircraft and sports flying sports facilities

Svoboda¹,

Štěrba²

2022

Manufacturing Technology

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“…This means that to excite specimenby heat, this heat must be generated periodically and correlation usage the lock-in method is applied to every heat subscription of each individual pixel on the view of the registered device. Digital lock-in form correlation comprise of averaging the consequence of the recorded values F k and method of weighting factors K k to the overall amount of recorded values M [1]:…”

Section: Lock-in Thermographymentioning

confidence: 99%

Nondestructive Evaluation of BSCC Artificial Heart Valves

et al. 2022

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The subject of investigation is a set of four artificial heart valves made of electrically conductive material, namely the alloy Ti-6Al-4V. Notches of defined geometry with gradually increasing depth were formed on these BSCC (Bjork-Shiley Convexo-Concave) valves. These defects are created on the so-called output strut, which serves as a support mechanism for the controlled movement of the so-called occluder disc and they have been investigated. The method which was used is ultrasonic infrared thermography, where the object was excited by the UTVIS EDEVIS ultrasonic system and the response was detected by the FLIR SC 7200 infrared camera. The postulate for the use of this method is that the excitation signal may be periodically pulsate or in any other way modulated by certain amplitude frequencies, called "lock-in frequency". Lock-in thermography is a type of active lock-in method. The results of damage detection on these relatively complicated objects are compared and discussed.

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“…The cam is constructed as part of the mechanism which is designed to dynamically load the cutter bed [4][5][6][7]. The rocker that generates the test force Fb is pressed by the coil spring onto the active surface of the cam.…”

Section: Designing a Cam Profilementioning

confidence: 99%

Design of cam driving test equipment

et al. 2019

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The work deals with the design of a test equipment designed for fatigue testing of the cutter bed. The disk cam drives the rocker, which is pressed against the cam surface by the coil spring. The test drum (buchar) copies the movement of the rocker to generate the exciting force that is loaded by the bed of the milling cutter. Based on unmatched data, the Wohler curve will be determined. This article deals only with parts of the design station. In particular, the design of the cam will be discussed here.

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Localization of delamination in composite test specimen

Cited by 5 publications

References 5 publications

Design of T-hangar for aircraft and sports flying sports facilities

Design of T-hangar for aircraft and sports flying sports facilities

Nondestructive Evaluation of BSCC Artificial Heart Valves

Design of cam driving test equipment

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