000003391 001__ 3391
000003391 005__ 20141118153401.0
000003391 04107 $$acze
000003391 046__ $$k2005-05-09
000003391 100__ $$aVavřík, D.
000003391 24500 $$aNew experimental setup for study of physical processes preceding specimen failure

000003391 24630 $$n11.$$pENGINEERING MECHANICS 2005
000003391 260__ $$bInstitute of Thermomechanics AS CR, v.v.i., Brno
000003391 506__ $$arestricted
000003391 520__ $$2eng$$aFailure of a high ductile specimen usually precedes a decrease of the loading force (material softening) under the condition of displacement control in the monotonic loading. This phenomenon is usually induced by a large plastic deformation and eventually by a related dynamic development of voids and microcracks inside the specimen (damage process). The experimental investigation of this highly interesting stage can be made accessible only under very well controlled loading. Unfortunately, the elastic energy stored in the loading equipment can result in sudden failure within very short time corresponding to the loading unstability. We can follow this time interval with real fast readout system or, alternatively, we can prolong this time interval by reducing the elastic energy in the loading equipment or both. The proposed new loading frame fulfils the indicated requirements and enables extraordinary precise displacement loading control even beyond the maximal loading force. Plastic deformation on a surface is investigated by the optical Method of Interpolated Ellipses and together with damage processes inside of the specimen are simultaneously observed by the X-ray Dynamic Defectoscopy method.

000003391 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000003391 653__ $$a

000003391 7112_ $$aENGINEERING MECHANICS 2005$$cSvratka (CZ)$$d2005-05-09 / 2005-05-12$$gEM2005
000003391 720__ $$aVavřík, D.$$iVykydal, Z.$$iValach, J.$$iJakůbek, M.$$iJakůbek, J.$$iHolý, T.$$iBryscejn, J.
000003391 8560_ $$ffischerc@itam.cas.cz
000003391 8564_ $$s1046225$$uhttps://invenio.itam.cas.cz/record/3391/files/Vavrik-PT.pdf$$y
             Original version of the author's contribution as presented on CD, .
            
000003391 962__ $$r3238
000003391 980__ $$aPAPER