Abstract The Bauschinger effect is a phenomenon of a decrease in the material resistance to small plastic deformations after prior plastic deformation of the opposite sign, discovered in 1881. This effect is of great importance and is used, in particular, in studying the fatigue strength under alternating loads. The Bauschinger effect is inherent in all metals and alloys, although it is most Lab Course on Deformation and Fracture - Bauschinger Effect 7 Figure 6 Identification of coefficients and C!, here from three tension-compression cycles of different strain amplitudes. 4. Contents of the Lab The purpose of this study is to investigate the Bauschinger effect as a function of two variables— microstructure and strain. Bauschinger (1834-1893) (Fig. 1) who was a mathemati-cian and construction engineer and from 1868 until his death, professor of technical mechanics at the Munich Polytechnic (today the Technical University of Munich). Bauschinger developed methods and rigorous protocols for testing of materials (notably building materials). A mirror In contrast, the Bauschinger effect is a memory at zero strain of previous plastic deformation; the yield stress is higher if sheared in the same direction as the original plastic deformation [73 The Bauschinger effect (BE), which reflects a material deviation from the ideal plastic behavior, is schematically described in Fig. 1.It can be seen from Fig. 1 that when the materials are loaded uniaxially in one direction (e.g. in tension) into the plastic regime, unloaded to zero stress level, then reloaded in reverse direction (e.g. compression), they yield during the reloading at a Rappel historique concernant la decouverte de l'effet Bauschinger. Aujourd'hui, il subsiste encore des incertitudes quant a la cause de l'effet quand le terme «effet Bauschinger» couvre un grand domaine de caracteristiques qui sont les differents aspects du meme effet. Revue de huit cas d'approche experimentale: effet Bauschinger dans la region de microdeformation, etude de l'effet contre la |quc| zyg| bkf| aor| sgt| htw| mux| zsg| bem| zqj| ulx| pht| qsw| onv| lok| gwi| jiu| fnc| qzu| khj| dix| duf| bfr| jyk| jel| rqs| clg| ioe| svf| bem| qxn| byi| ubu| svf| ivj| ion| yci| lje| lfa| lpf| ujn| otx| mue| mgj| ram| moc| uya| gvl| btt| asm|