PSI - Issue 36

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2021) 000 – 000 il l li t . i ir t. i i Structural Integrity Procedia 00 (2021) 000 – 000

www.elsevier.com/locate/procedia .elsevier.co /locate/procedia

ScienceDirect

Procedia Structural Integrity 36 (2022) 145–152

© 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Abstract The paper proposes the experimental technique for investigating the deformation and fracture of the materials under dynamic shear. The authors have tested the specimens with two shear zones. A series of numerical calculations are performed using the finite element method. The variation of the shear zone length in such specimens allows one to change the strain rate in these zones at a constant loading rate. The specimens are made of the following steels: steel 20, Hardox 400 high strength steel, and ARMOX 500T armored steel. The tests are made on the instrumented drop-weight impact testing machine with a high-speed registration system. The obtained results make it possible to assess the influence of many factors (strain rate, specimen geometry, material, and direction of the specimen cutting) on the deformation and fracture of materials under dynamic shear conditions. It is employed to specify the parameters of the material models for the numerical simulation of complex loading processes, as well as to develop the experimental method for the mechanical characteristics determination considering fracture during dynamic shear. © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors Keywords: dynamic shear, shear failure, impact, strain rate. 1. Introduction The strain rate effect on the behavior of materials under different types of loading is the goal of many recent investigations. Shear fracture remains one of the least studied and complex topics, however, a shear-dominated stress str ct e a er r ses t e e eri e tal tec i e f r i esti ati t e ef r ati a fract re f t e aterials er a ic s ear. e a t rs a e teste t e s eci e s it t s ear z es. series f erical calc lati s are erf r e si t e fi ite ele e t et . e ariati f t e s ear z e le t i s c s eci e s all s e t c a e t e strai rate i t ese z es at a c sta t l a i rate. e s eci e s are a e f t e f ll i steels: steel , ar i stre t steel, a ar re steel. e tests are a e t e i str e te r - ei t i act testi ac i e it a i -s ee re istrati s ste . e tai e res lts a e it ssi le t assess t e i fl e ce f a fact rs (strai rate, s eci e e etr , aterial, a irecti f t e s eci e c tti ) t e ef r ati a fract re f aterials er a ic s ear c iti s. It is e l e t s ecif t e ara eters f t e aterial els f r t e erical si lati f c le l a i r cesses, as ell as t e el t e e eri e tal et f r t e ec a ical c aracteristics eter i ati c si eri fract re ri a ic s ear. e t rs. lis e I . . is is a e access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4. ) eer-re ie er res si ilit f t e c fere ce est it rs ey ords: dyna ic shear, shear failure, i pact, strain rate. . I t ti str i r t ff t t i r f t ri ls r iff r t t s f l i is t l f r t i sti ti s. r fr t r r i s f t l st st i l t i s, r, s r- i t str ss 1st Virtual International Conference “In service Damage of Materials: Diagnostics and Prediction” Experimental and calculation investigations of deformation and fracture processes of various types of steels during impact shear tests Valeriy Kharchenko, Eugene Kondryakov * , Andriy Kravchuk, Andriy Kotliarenko Pisarenko Institute for Problems of Strength, National Academy of Sciences of Ukraine, 2 Timiryazevs’ka str. , Kiyv-014, 01014, Ukraine t irt l I t r ti l f r I r i f t ri l : i ti r i ti l i , , i , i tli isarenko Institute for roble s of Strength, ational cade y of Sciences of kraine, 2 i iryazevs’ka str. , iyv-014, 01014, kraine

* Corresponding author. Tel.: + Tel.: +380-68-197-39-68; fax: +380-44-286-16-84. E-mail address: kondryakov@ipp.kiev.ua * orresponding author. el.: el.: 380-68-197-39-68; fax: 380-44-286-16-84. - ail address: kondryakov ipp.kiev.ua

2452-3216 © 2022 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 2452-3216 2022 he uthors. ublished by I . . his is an open access article under the - - license (https://creativeco ons.org/licenses/by-nc-nd/4.0) eer-revie under responsibility of the conference uest ditors

2452-3216 © 2022 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the conference Guest Editors 10.1016/j.prostr.2022.01.016