A methodology for high resolution digital image correlation in high temperature experiments

被引：51

作者：

Blaber, Justin ^{[1
]}

Adair, Benjamin S. ^{[1
]}

Antoniou, Antonia ^{[1
]}

机构：

[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 03期

基金：

美国国家科学基金会;

关键词：

CRACK-TIP; THERMOMECHANICAL FATIGUE; ORIENTATION; SUPERALLOY; BEHAVIOR; FIELDS;

D O I：

10.1063/1.4915345

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We propose a methodology for performing high resolution Digital Image Correlation (DIC) analysis during high-temperature mechanical tests. Specifically, we describe a technique for producing a stable, high-quality pattern on metal surfaces along with a simple optical system that uses a visible-range camera and a long-range microscope. The results are analyzed with a high-quality open-source DIC software developed by us. Using the proposed technique, we successfully acquired high-resolution strain maps of the crack tip field in a nickel superalloy sample at 1000 degrees C. (C) 2015 AIP Publishing LLC.

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