Investigation of Factors Controlling the Attainable Equivalent Plastic Strain in the Gauge Region ofCruciform Specimens Tongji University

Format:

Conference/Event

Author/Creator:

Tang, Tang, author.

Contributor:

Carsley, John E.

Deng, Lulu

Hou, Yong

Lin, Jianping

Min, Junying

Zhu, Chuanmin

Conference Name:

WCX World Congress Experience (2018-04-10 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractThe maximum equivalent plastic strain (EPSmax), which can be achieved in the gauge region of a cruciform specimen during in-plane biaxial tensile tests, is limited due to early fracture on the cruciform specimen arm. In this paper, a theoretical model was proposed to determine the factors related to the EPSmax of a cruciform specimen following ISO 16842: 2014. Biaxial tensile tests were carried out to verify the theoretical analyses. Results show that the material strength coefficient (k) has no effect on the EPSmax, and EPSmax increases with the increase of the material hardening exponent (n) and the cross-sectional-area ratio (c) of the arm region to the gauge region. It is found that the applied load ratio (α) has an effect on EPSmax, which decreases as the load ratio increases from 0:1 (id est uniaxial tension) to 1:2 (id est plane strain state) and then increases as the load ratio increases to 1:1 (id est balanced biaxial tension)

Notes:

Vendor supplied data

Publisher Number:

2018-01-0809

Access Restriction:

Restricted for use by site license