Nominal strength of quasi-brittle open hole specimens under biaxial loading conditions
Source abstract
Abstract
One of the main purposes for an accurate strength prediction is to get a reliable design tool of a given structure. Since most of aircraft and aerospace structures contain many holes and are subject to multidirectional loading conditions, due to stress concentration, cracks will necessarily emanate from these holes before failure. Therefore, the nominal strength prediction of open hole specimens under biaxial loading conditions is very necessary for the safe design of these structures. The main goal of this work is to develop an analytical model able to predict the nominal strength and the failure envelope of isotropic quasi-brittle open hole specimens under biaxial loading conditions. In this model, the nominal strength is analyzed taking into account the hole radius and the biaxiality load ratio. The model is formulated based on the cohesive zone model considering various shapes of the cohesive law. Other approaches such as the different methods of the critical distance theories are also presented and compared with the results of the cohesive crack model
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Fatigue and fracture mechanics · Structural Load-Bearing Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (54)
Show source-provided references
1. Predicting failure in composite laminates: the background to the exercise10.1016/S0266-3538(98)00074-8 ↗
2. Bažant · 1998
3. Scaling of structural failure10.1115/1.3101672 ↗
4. Size effects in the testing of fibre-reinforced composites10.1016/S0266-3538(99)00053-6 ↗
5. Size effect in fracture of unidirectional composite plates10.1023/A:1018687931394 ↗
6. Size effect on flexural strength of fiber-composite laminates10.1115/1.1631031 ↗
7. An experimental investigation into the tensile strength scaling of notched composites10.1016/j.compositesa.2006.07.008 ↗
8. size effect in quasibrittle failure: analytical model and numerical simulations using cohesive zone model10.1016/j.ijsolstr.2011.01.014 ↗
9. The formation of equilibrium cracks during brittle fracture. General ideas and hypotheses. Axially-symmetric cracks10.1016/0021-8928(59)90157-1 ↗
10. The mathematical theory of equilibrium cracks in brittle fracture10.1016/S0065-2156(08)70121-2 ↗
11. Yielding of steel sheets containing slits10.1016/0022-5096(60)90013-2 ↗
12. The cohesive zone model: advantages, limitations and challenges10.1016/S0013-7944(01)00083-2 ↗
13. Concrete fracture models: testing and practice10.1016/S0013-7944(01)00084-4 ↗
14. Generalizations and specializations of cohesive crack models10.1016/S0013-7944(03)00123-1 ↗
15. Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements10.1016/0008-8846(76)90007-7 ↗
16. CamanhoPP, Dávila CG. Mixed-Mode decohesion finite element for the simulation of delamination in composite materials. TM-2002-211737; NASA; 2002.
17. A damage model for the simulation of delamination in advanced composites under variable-mode loading10.1016/j.mechmat.2005.10.003 ↗
18. Crack band theory for fracture of concrete10.1007/BF02486267 ↗
19. Softening of concrete in compression – localization and size effects10.1016/0008-8846(95)00059-L ↗
20. Simulation of delamination by means of cohesive elements using an explicit finite element code
21. A continuum damage model for composite laminates: Part II - computational implementation and validation10.1016/j.mechmat.2007.03.006 ↗
22. Failure prediction technique for compression loaded carbon fibre-epoxy laminate with open holes10.1177/002199839102501106 ↗
23. Nominal strength of quasi-brittle open hole specimens10.1016/j.compscitech.2012.04.004 ↗
24. Size effect law and critical distance theories to predict the nominal strength of quasibrittle structures10.1115/1.4024163 ↗
25. Taylor · 2007
26. The theory of critical distances10.1016/j.engfracmech.2007.04.007 ↗
27. Stress fracture criteria for laminated composites containing stress concentrations10.1177/002199837400800303 ↗
28. Strength prediction of braided composite plates with a center hole
29. Prediction of size effect in notched laminates using continuum damage mechanics10.1016/j.compscitech.2007.02.005 ↗
30. Macroscopic fracture mechanics of advanced composite materials10.1177/002199837100500402 ↗
31. The fracture mechanics of finite crack extension10.1016/j.engfracmech.2004.07.001 ↗
32. Strength or toughness? a criterion for crack onset at a notch10.1016/S0997-7538(01)01184-6 ↗
33. Finite fracture mechanics: a coupled stress and energy failure criterion10.1016/j.engfracmech.2006.03.010 ↗
34. A finite fracture mechanics model for the prediction of the open-hole strength of composite laminates10.1016/j.compositesa.2012.03.004 ↗
35. Measuring the notched compressive strength of composite laminates: specimen size effects10.1016/j.compscitech.2007.09.003 ↗
36. Scaling effects in notched carbon fibre/epoxy composites loaded in compression10.1007/s10853-008-2807-7 ↗
37. Effects of an open hole on the biaxial strengths of composite laminates10.1177/0021998310372841 ↗
38. Behavior of graphite/epoxy plates with holes under biaxial loading10.1007/BF02324420 ↗
39. Failure mechanisms of composite plates with a circular hole under remote static biaxial planar compressive loading10.4028/www.scientific.net/KEM.120-121.463 ↗
40. Evaluation of notched strength of composite laminates for structural design10.1177/0021998310372713 ↗
41. A design methodology for mechanically fastened joints in laminated composite materials10.1016/j.compscitech.2006.02.017 ↗
42. Stress and failure analysis of composite laminates with an inclusion under multiaxial compression tension loading10.1023/A:1011279721719 ↗
43. Remarks on crack-bridging concepts10.1115/1.3119764 ↗
44. Cohesive zone with continuum damage properties for simulation of delamination development in fiber composites and failure of adhesive joints10.1016/j.engfracmech.2008.02.010 ↗
45. Simulation of dynamic ductile crack growth using strain-rate and triaxiality-dependent cohesive elements10.1016/j.engfracmech.2006.03.016 ↗
46. inc. A. Abaqus 6.12 user’s manual. 2012.
47. Experimental studies of thin-ply laminated composites10.1016/j.compscitech.2006.06.008 ↗
48. Experimental characterization of strength and damage resistance properties of thin-ply carbon fiber/toughned epoxy laminates10.1016/j.compstruct.2007.01.015 ↗
49. Handbook. MIL-HDBK-17-3F: Composite Materials Handbook, Polymer matrix composites: materials usage, design, and analysis; vol. 17, v. 3. U.S. Department of Defense; 2002 (ISBN 0803133529).
50. Damage resistance and damage tolerance of dispersed CFRP laminates: Effect of the mismatch angle between plies10.1016/j.compstruct.2013.01.026 ↗
51. Laminated composites containing an elliptical opening.I. approximate stress analyses and fracture models10.1177/002199838702101004 ↗
52. Macroscopic fracture mechanics of advanced composite materials10.1177/002199837100500402 ↗
53. Notched strength prediction of laminated composite under tensile loading10.1016/S0921-5093(01)01759-2 ↗
54. Comparison of fracture models to assess the notched strength of composite/solid propellant tensile specimens10.1016/j.msea.2004.07.041 ↗