Digitální knihovnaUPCE
 

Dynamic Fracture Behavior of the Martensitic High Strength Steel After Spot Welding

Konferenční objektpeer-reviewedpostprint
Náhled

Datum publikování

2016

Vedoucí práce

Oponent

Název časopisu

Název svazku

Vydavatel

Elsevier

Abstrakt

Martensitic low alloy high strength steel grade of 22MnB5, used for automotive safety parts constructions, was subject of the experimental analyses of dynamic fracture behavior. The main purpose of the performed analyses was the qualitative and quantitative evaluation of heterogeneities due to the standard spot welding technology. The dynamic resistance of heat affected zones compared to uninfluenced martensitic steel were the subject of suggested methodology for the evaluation of dynamic strength; impact tensile tests were performed after simulation of heat affected zone. Dynamic strength, energy consumption and fracture mode were evaluated at different strain rate. This allows to sketch the influence of the strain rate on the weld joint load capacity. Structural and fractography analyses were focused on an induced degradation process in terms of phase transformation and fracture mode.

Rozsah stran

p. 1156-1160

ISSN

2214-7853

Trvalý odkaz na tento záznam

Projekt

TE01020038/Centrum kompetence drážních vozidel

Zdrojový dokument

Materials Today : Proceedings

Vydavatelská verze

http://www.sciencedirect.com/science/article/pii/S2214785316002194

Přístup k e-verzi

open access

Název akce

32nd DANUBIA ADRIA SYMPOSIUM on Advances in Experimental Mechanics (22.09.2015 - 25.09.2015)

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Klíčová slova

Martensitic steel, heat affected zone, high strain rate, strain rate sensitivity, martenzitická ocel, tepelně ovlivněná oblast, vysoká rychlost defromace, citlivost na rychlost deformace

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