Strain energy release rate and mode partitioning of moment-loaded elastically coupled laminated beams with hygrothermal stresses

被引：8

作者：

Tsokanas, Panayiotis ^{[1
]}

Loutas, Theodoros ^{[1
]}

Kotsinis, Georgios ^{[1
]}

van den Brink, Wouter M. ^{[2
]}

Nijhuis, Peter ^{[2
]}

机构：

[1] Univ Patras, Dept Mech Engn & Aeronaut, Lab Appl Mech & Vibrat, GR-26504 Rion, Greece

[2] Royal Netherlands Aerosp Ctr NLR, Struct Technol Dept, NL-8316 PR Marknesse, Netherlands

来源：

COMPOSITE STRUCTURES | 2021年 / 259卷

基金：

欧盟地平线“2020”;

关键词：

Arbitrarily layered beam; Double cantilever beam test with uneven bending moments; Strain energy release rate; Mode partitioning; Bending-extension coupling; Residual hygrothermal stresses; CRACK-GROWTH; SPECIMEN; MIXITY;

D O I：

10.1016/j.compstruct.2020.113237

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

New closed-form, analytical solutions are derived for the strain energy release rate (SERR) and mode partitioning of uneven bending moments-loaded tests on layered beams with bending-extension coupling and residual hygrothermal stresses. The analytical modeling utilizes Timoshenko beam kinematics, a semi-rigid interface model, and the global method to perform mode partitioning. The proposed solutions are validated via the finite element method in two typical examples of metal-composite joints. In addition, experiments using the double cantilever beam with uneven bending moments test setup are performed in a titanium-carbon fiber reinforced plastic adhesive joint, and data reduction is performed utilizing the new analytical solutions. We demonstrate that the residual thermal stresses effect on the SERR and mode mixity of the metal/composite interfaces can be non-negligible and, thus, should be considered in the design and analysis of such structures. The proposed formulas serve as a data reduction scheme for the fracture toughness and mode mixity determination in the general case of layered beams with bending-extension coupling and hygrothermal stresses, when utilizing uneven bending moments for the characterization tests.

引用

页数：15

共 31 条

[1] A modified DCB-UBM test method for interfacial fracture toughness characterization of sandwich composites [J].

Berggreen, Christian ;

Saseendran, Vishnu ;

Carlsson, Leif A. .

ENGINEERING FRACTURE MECHANICS, 2018, 203 :208-223

[2] Quantification of fibre bridging in Mode I cracked Glare without delaminations [J].

Bhat, Sunil ;

Narayanan, S. .

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS, 2014, 43 :152-170

[3] Analytical and numerical modeling of the mixed-mode delamination process for composite moment-loaded double cantilever beams [J].

Dimitri, Rossana ;

Tornabene, Francesco ;

Zavarise, Giorgio .

COMPOSITE STRUCTURES, 2018, 187 :535-553

[4] CRACK-PROPAGATION STUDIES IN BRITTLE MATERIALS [J].

FREIMAN, SW ;

MULVILLE, DR ;

MAST, PW .

JOURNAL OF MATERIALS SCIENCE, 1973, 8 (11) :1527-1533

[5] Experimental assessment of mixed-mode partition theories for generally laminated composite beams [J].

Harvey, C. M. ;

Eplett, M. R. ;

Wang, S. .

COMPOSITE STRUCTURES, 2015, 124 :10-18

[6] Experimental assessment of mixed-mode partition theories [J].

Harvey, C. M. ;

Wang, S. .

COMPOSITE STRUCTURES, 2012, 94 (06) :2057-2067

[7]

Irwin G.R., 1958, Encyclopedia of Physics, Vol. VI: Elasticity and Plasticity, P551, DOI DOI 10.1007/978-3-662-43081-1

[8] Virtual crack closure technique: History, approach, and applications [J].

Krueger, Ronald .

Applied Mechanics Reviews, 2004, 57 (1-6) :109-143

[9] Experimental characterization of delamination in off-axis GFRP laminates during mode I loading [J].

Lindgaard, Esben ;

Bak, Brian Lau Verndal .

COMPOSITE STRUCTURES, 2019, 220 :953-960

[10] Application of bridging-law concepts to short-fibre composites - Part 1: DCB test procedures for bridging law and fracture energy [J].

Lindhagen, JE ;

Berglund, LA .

COMPOSITES SCIENCE AND TECHNOLOGY, 2000, 60 (06) :871-883

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