Evaluation of Surface Crack Propagation Properties of A7075 Aluminum Alloy Using Digital Image Correlation Method

2019 ◽  
Vol 2019.57 (0) ◽  
pp. 206
Author(s):  
Kazuya YAMAMOTO ◽  
Yuichi ONO ◽  
Takumi ADACHI
Keyword(s):  
Aluminum Alloy ◽  
Digital Image Correlation ◽  
Crack Propagation ◽  
Digital Image ◽  
Surface Crack ◽  
Correlation Method ◽  
Image Correlation ◽  
Digital Image Correlation Method ◽  
Propagation Properties

Analysis of the Crack Propagation Process in Concrete Beams Reinforced with BFRP Bars Using Digital Image Correlation Method

2015 ◽  
Vol 240 ◽  
pp. 55-60 ◽  
Author(s):  
Marek Urbański ◽  
Andrzej Łapko ◽  
Karol Suprynowicz
Keyword(s):  
Digital Image Correlation ◽  
Crack Propagation ◽  
Digital Image ◽  
Concrete Beams ◽  
Limit State ◽  
Correlation Method ◽  
Reinforced Concrete Beams ◽  
Image Correlation ◽  
Rc Beams ◽  
Digital Image Correlation Method

Application of the DIC (Digital Image Correlation) method for the analysis of crack initiation and propagation in RC beams reinforced by BFRP bars (Basalt Fibre Reinforced Polymer) is presented in the paper. Two dimensional, single camera DIC system was used to observe strain and crack distribution in such RC beams loaded using four point bending setup. BFRP bars have arose as an alternative to steel bars for RC (Reinforcement Concrete) members in aggressive environments. The low modulus of elasticity of BFRP bars lead on to large crack widths and, as a result, the design of BFRP Reinforced Concrete beams is often governed by SLS (Serviceability Limit State) criterion. Due to this it is necessary to explore specific crack propagation in concrete beams. Process of such beams degradation can be identified by comparison of strains and displacements obtained by DIC method, with the database of experiment results.

Evaluation of Interlaminar Damage and Crack Propagation through Digital Image Correlation Method

2008 ◽  
Vol 399 ◽  
pp. 105-112
Author(s):  
Dan Mihai Constantinescu ◽  
Marin Sandu ◽  
Liviu Marsavina ◽  
Radu Negru ◽  
Matei Constantin Miron ◽  
...  
Keyword(s):  
Digital Image Correlation ◽  
Crack Propagation ◽  
Digital Image ◽  
Crack Tip ◽  
Correlation Method ◽  
Image Correlation ◽  
Crack Tip Opening Displacement ◽  
Opening Displacement ◽  
Unstable Crack ◽  
Digital Image Correlation Method

Interface damage characterization and interlaminar failure of sandwich specimens with two initial interlaminar defects (inserts) is done by using the digital image correlation method. Mode I tests reveal interesting particularities on damage localization and unstable crack propagation. After analyzing the experimentally obtained results, we propose as a failure parameter the local strain at the crack tip or, alternatively, the crack tip opening displacement which quantifies the non-linear phenomena.

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