Measurement of Aluminum Edge Stretching Limit Using 3D Digital Image Correlation Oakland University

Format:

Conference/Event

Author/Creator:

Xie, Xie, author.

Contributor:

Chen, Yi-Hsin

Du, Changqing

Li, Xiaona

Phillips, Christina

Sia, Bernard

Yang, Guobiao

Yang, Lianxiang

Zheng, Yaqian

Zhou, Dajun

Zhou, Yongjun

Conference Name:

SAE 2015 World Congress & Exhibition (2015-04-21 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2015

Summary:

AbstractThis paper introduces an industrial application of digital image correlation technique on the measurement of aluminum edge stretching limit. In this study, notch-shape aluminum coupons with three different pre-strain conditions are tested. The edge stretching is proceeded by standard MTS machine. A dual-camera 3D Digital Image Correlation (DIC) system is used for the full field measurement of strain distribution in the thickness direction. Selected air brush is utilized to form a random distributed speckle pattern on the edge of sheet metal. A pair of special optical lens systems are used to observe the small measurement edge area. From the test results, it demonstrate that refer to the notched coupon thickness, pre-tension does not affect the fracture limit; refer to the virgin sheet thickness, the average edge stretch thinning limits show a consistent increasing trend as the pre-stretch strain increased. Test plan, experimental setup, and experimental results are shown in detail in this article

Notes:

Vendor supplied data

Publisher Number:

2015-01-0594

Access Restriction:

Restricted for use by site license