Finite element analysis of AHS steel under dynamic loading using a micromechanical modelling

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Chiyatan T., Karin P., Ohtake N., Uthaisangsuk V.

ผู้เผยแพร่: IOP Publishing

ปีที่เผยแพร่ (ค.ศ.): 2018

Volume number: 1063

Issue number: 1

นอก: 1742-6588

eISSN: 1742-6596

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85051861687&doi=10.1088%2f1742-6596%2f1063%2f1%2f012109&partnerID=40&md5=fe3c6aecdf3bb2b95f29368e71065799

ภาษา: English-Great Britain (EN-GB)

ดูในเว็บของวิทยาศาสตร์ | ดูบนเว็บไซต์ของสำนักพิมพ์ | บทความในเว็บของวิทยาศาสตร์

บทคัดย่อ

Currently, advanced high strength (AHS) steel sheets have been increasingly used in the automotive structural parts, where improved crashworthiness and lightweight design are required at the same time. Such steel sheets provide an excellent combination between high strength and great energy absorption. Most AHS steels exhibit microstructures containing several phases and constituents with different morphologies and mechanical properties. In this work, the dual phase (DP) steel grade 780 was investigated under dynamic tensile loading by means of a finite element modelling on the micro-scale. A representative volume element (RVE) model was applied to take into account the effects of microstructure characteristics on the mechanical behaviour of steel sheets at high strain rates. For the RVE modelling, the Johnson-Cook constitutive model was applied to describe the stress-strain response, whereas the Johnson-Cook damage model and damage locus were employed for predicting failure development of each individual phases of examined steel. The RVE simulations were performed under varying strain rates and states of stress and the results were subsequently compared. ฉ 2018 Institute of Physics Publishing. All rights reserved.

คำสำคัญ

ไม่พบข้อมูลที่เกี่ยวข้อง