Experimental determination of mode I fracture parameters in orthotropic materials by means of Digital Image Correlation

被引：22
作者：
Cappello, Riccardo [1 ]
Pitarresi, Giuseppe [1 ]
Xavier, Jose [2 ]
Catalanotti, Giuseppe [3 ]
机构：
[1] Univ Palermo, Dept Engn, Viale Sci 8, I-90128 Palermo, Italy
[2] Univ Nova Lisboa, NOVA Sch Sci & Technol, Dept Mech & Ind Engn, UNIDEMI, P-2829516 Caparica, Portugal
[3] Queens Univ Belfast, Sch Mech & Aerosp Engn, Adv Composites Res Grp ACRG, Belfast BT9 5AH, Antrim, North Ireland
来源：
THEORETICAL AND APPLIED FRACTURE MECHANICS | 2020年 / 108卷
关键词：
Digital image correlation; Stress intensity factor; J-integral; Least squares fitting; Energy domain integral; STRESS INTENSITY FACTOR; DISPLACEMENT-FIELDS; DYNAMIC FRACTURE; CRACK; COMPOSITES; FAILURE; ENERGY;
D O I：
10.1016/j.tafmec.2020.102663
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The mode I fracture parameters for an orthotropic body are directly calculated from full-field deformation measurements provided by Digital Image Correlation (DIC). Three complementary and direct approaches are evaluated and compared: (i) the determination of the Stress Intensity Factor (SIF) by fitting the displacement field using the analytical expression proposed by Lekhnitskii; (ii) the determination of the J-Integral by using the Energy Domain Integral (EDI) formulation on the raw DIC data; and (iii) the calculation of the J-Integral using the EDI approach on the displacement data fitted using Lekhnitskii's formulation. A comparative experimental study is performed by testing an IM7/8552 cross-ply laminate, and the effect of different parameters is analysed and discussed. The outcomes of this work show that, if an accurate choice of the parameters is performed, the different approaches lead to the same results.
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页数：12
相关论文
共 35 条
[1]  
Anderson TL., 2017, FRACTURE MECH FUNDAM, V4th, DOI [DOI 10.1201/9781315370293, 10.1201/9781315370293]
[2]  
[Anonymous], 2019, MATLAB 2019A
[3]  
[Anonymous], 1987, ANISOTROPIC PLATES
[4]   Determination of Stress Intensity Factors and integral based on Digital Image Correlation [J].
Breitbarth, Eric ;
Strohmann, Tobias ;
Besel, Michael ;
Reh, Stefan .
FRATTURA ED INTEGRITA STRUTTURALE-FRACTURE AND STRUCTURAL INTEGRITY, 2019, 13 (49) :12-25
[5]   Prediction of size effects in notched laminates using continuum damage mechanics [J].
Camanho, P. P. ;
Maimi, P. ;
Davila, C. G. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2007, 67 (13) :2715-2727
[6]   Determination of the mode I crack resistance curve of polymer composites using the size-effect law [J].
Catalanotti, G. ;
Arteiro, A. ;
Hayati, M. ;
Camanho, P. P. .
ENGINEERING FRACTURE MECHANICS, 2014, 118 :49-65
[7]   Measurement of resistance curves in the longitudinal failure of composites using digital image correlation [J].
Catalanotti, G. ;
Camanho, P. P. ;
Xavier, J. ;
Davila, C. G. ;
Marques, A. T. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2010, 70 (13) :1986-1993
[8]   Determination of mode I dynamic fracture toughness of IM7-8552 composites by digital image correlation and machine learning [J].
Cidade, Rafael A. ;
Castro, Daniel S., V ;
Castrodeza, Enrique M. ;
Kuhn, Peter ;
Catalanotti, Giuseppe ;
Xavier, Jose ;
Camanho, Pedro P. .
COMPOSITE STRUCTURES, 2019, 210 :707-714
[9]   HRR FIELD OF A MOVING CRACK - AN EXPERIMENTAL-ANALYSIS [J].
DADKHAH, MS ;
KOBAYASHI, AS .
ENGINEERING FRACTURE MECHANICS, 1989, 34 (01) :253-262
[10]   Size effects on the tensile and compressive failure of notched composite laminates [J].
Ercin, G. H. ;
Camanho, P. P. ;
Xavier, J. ;
Catalanotti, G. ;
Mandi, S. ;
Linde, P. .
COMPOSITE STRUCTURES, 2013, 96 :736-744
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