National Repository of Grey Literature 50 records found  previous11 - 20nextend  jump to record: Search took 0.00 seconds. 
The river dam Slapy - evaluation of material and mechanical properties of the steel quick-closing panels
Šperl, Martin ; Gajdoš, Lubomír ; Bejdl, Jan
An experimental research of the material and mechanical properties of two steel segments cut from quick-closing gate was carried out for suitability assessment to operation. The quick-closing gate is a technology part of the river dam Slapy.
Mechanical and fracture mechanical analysis of steel segments cut from Družba oil pipelines DN 500 and DN 700
Gajdoš, Lubomír ; Šperl, Martin ; Šorm, Filip ; Bejdl, Jan
Experimental research of mechanical and fracture mechanical properties of the pipe specimens taken from Družba oil pipeline. In addition to basic static tests and fracture toughness tests, the research also included the determination of the kinetic of fatigue crack growth, incl. analysis of critical crack size.
Mechanical and fracture mechanical tests of a special type of steel
Gajdoš, Lubomír ; Šperl, Martin ; Šorm, Filip
Research report on testing of mechanical and fracture mechanical properties of special type of the steel. Between the main results of the research belong fracture toughness in the terms of J integral parameters, constants for crack grows rate in the type of steel used to railway bogies.
Statics strength test of the steel pin with 65 kN force transducer
Šperl, Martin ; Vála, Ondřej ; Zíma, Pavel
Research report on testing the steel pin which was loading in the three point bending mode. The steel pin was fitted with a 65 kN force sensor and loaded to its strength limit. The pin is used as a safety component for the building lifts.
Dynamic and static tests of the cotton clothes of dummies used to crash car tests
Šperl, Martin ; Gajdoš, Lubomír ; Šorm, Filip ; Vála, Ondřej
Research report on testing the influences different cotton clothes to material interference during car crash test. The tests were performed in some loading modes for the material composition (dummies skin, cotton, seat belt).
Investigation of fundamental mechanical and fracture mechanical properties of high pressure gas pipeline - location L177 (L177/1 and L177/2)
Gajdoš, Lubomír ; Šperl, Martin ; Šorm, Filip ; Bejdl, Jan
Assesment of mechanical and fracture mechanical properties including the analysis of critical crack dimensions for specific gas pressure and pipelines segments. These magnitudes will be used as a reference properties on the subsequent hydrogen effect investigation to the pipeline steel.
Assessment of gas pipeline reliability based on mechanical and fracture tests of pipe segments\nfrom VTL DN 500 (lane no. 41 and 56) and VTL DN 300 (lane no. 152)
Gajdoš, Lubomír ; Šperl, Martin ; Šorm, Filip
Determination of mechanical and fracture mechanical properties include analysis of the critical crack dimensions for specific gas pressure and pipe segment (material).
Methods No. 25/01/UTAM19 for covering of the buried infrastructure components against laid explosives and cumulative bullets
Šperl, Martin ; Gajdoš, Lubomír ; Wolf, Benjamin
The methodology describes specific procedures for covering of the buried infrastructure components. The purpose of these procedures is low cost protection for the buried technologies against dynamic ground threats. Mainly it is laid explosives and cumulative bullets. The basic procedures of this methodology have been implicated into the gas normative regulation TPG 70204 - Revision 2.
Determination of mechanical and fracture mechanical properties for high pressure gas pipelines (line no. 154 and 223 - DN 500, line 113 - DN 200
Gajdoš, Lubomír ; Šperl, Martin
Determination of mechanical and fracture mechanical properties include analysis of the critical crack dimensions for specific gas pressure and pipe segment.
Methodology for measurement of fast projectiles speed decrement during their penetration through various substances using a digital opto-mechanical device
Šperl, Martin ; Gajdoš, Lubomír ; Wolf, Benjamin
This methodology describes the procedures, the equipment and software used for measurement of the speed decrease of flying projectile through different bulk, silicate and solid masses. The advantage and uniqueness of this methodology consists in ability to measure the attenuation characteristics of various materials during the impact by high speed projectile. The methodology is based on a system of thin plates with optic fibers that function as a light-time gate with a defined pitch.

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1 Šperl, Milan
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