ČERNÝ MICHAL, ŠUSTR MICHAL, DOSTÁL PETR. 2016. Testing of Macroscopic Hardness by Acoustic Response. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(3): 751–758. Static measurement of macroscopic hardness (hereina er macrohardness) of metal materials by using indentation testing is accompanied by deformation in the vicinity of the indenter. Its indenting in a material...

ZAČAL JAROSLAV, DOSTÁL PETR, ŠUSTR MICHAL. 2016. Structure Integrity Testing of Mineral Feed by Means of Acoustic Emission. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 64(2): 573–577. This work deals with specifi c method of non-destructive testing – Acoustic emission (AE). Theoretical part of article is focused on underlying principle of this method and its applicab...

This paper presents the experimental results regarding acoustic emission signals measured during the injection molding of those standard test specimens commonly used for examining the shrinkage behaviour of various thermoplastic materials. In daily industrial production of different plastic products we often have to deal with various errors that practically occur on the mold primarily as a resu...

According to the structure characteristics of multiplayer binding high pressure vessels, acoustic emission linear location method is used to detect deep active defects in hoop weldments. At the same time, triangle location and zone location methods are used to inspect the whole cylinder. The result shows that multiplayer binding vessel with excellent integrity presents elastic characteristic li...

Acoustic emission is a nondestructive control technique as it does not involve any input of energy into the materials. It based on acquisition ultrasonic signals spontaneously emitted by material under stress due to irreversible phenomena such damage, microcracking, degradation, and corrosion. dynamic passive-receptive that analyzes pulses crack when generated. This allows for an early diagnosi...

For the verification of pertinent failure and damage models of fibre and textile reinforced composites a clear identification of the particular damage entities is an essential premise. In such fibrous composites, the characteristic failure mechanisms are initiated on the microscale and result in a spontaneous release of elastic energy in terms of mechanical stress waves, the so-called acoustic ...