Energy-based analyses of delamination development in fibre-reinforced polymers under 3-point bending
Source abstract
Abstract
Abstract A study was conducted to investigate possibility of predicting delamination development in fibre-reinforced polymer specimens that have single off-axis insert layer and are subjected to 3-point bending. Experimental results showed that the delamination development was at a very fast rate, which occurred at nearly constant deflection. Using high-speed photography, energy consumed for specimen vibration that was caused by the rapid delamination growth, was quantified and found to be a small fraction of the total energy loss incurred for the delamination development. Critical strain energy release rate for delamination ( G c ) was determined after removing this part of energy loss from the total energy loss, and was used in two analytical approaches to predict the delamination size development, based on energy release rate ( G ) and change of total energy, respectively. Results show that the two approaches provide upper and lower bounds of delamination size observed in the 3-point bending tests.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Mechanical Behavior of Composites · Ultrasonics and Acoustic Wave Propagation · Structural Behavior of Reinforced Concrete
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (23)
Show source-provided references
1. Characterization and analysis of delamination fracture in composites: an overview of developments from 1990 to 200110.1115/1.1504848 ↗
2. Interlaminar fracture toughness: the long and winding road to standardization10.1016/S1359-8368(97)00013-9 ↗
3. Comparison of test configurations for determination of mode II interlaminar fracture toughness results from international collaborative test programme10.1179/146580199101540600 ↗
4. Standard test methods for delamination resistance of composite materials: current status10.1023/A:1008869811626 ↗
5. New approach toward understanding damage mechanisms and mechanics of laminated composites due to low-velocity impact. Part II. Analysis10.1177/002199839102500804 ↗
6. Progressive damage model for laminated composites containing stress concentrations10.1177/002199838702100904 ↗
7. Prediction of impact damage in composite plates10.1016/S0266-3538(99)00126-8 ↗
8. Numerical simulation of mixed-mode progressive delamination in composite materials10.1177/0021998303034505 ↗
9. Quadratic stress criterion for initiation of delamination10.1177/002199838802201205 ↗
10. A new method to quantify delamination resistance of fibre reinforced polymers (FRP) under transverse loading10.1007/s10443-004-6205-2 ↗
11. Interlaminar fracture toughness and the associated fracture behavior for glass fiber reinforced polymers (GFRP)10.1023/B:JMSC.0000013908.79058.ee ↗
12. Characterization of delamination resistance of fibre reinforced polymers (FRP) under transverse loading using a newly developed beam test
13. Comparison of testing methods for fibre-reinforced polymers (FRP) in resistance to in-plane sliding mode of delamination (mode II)10.1007/s10853-005-0587-x ↗
14. Anderson · 1995
15. Analysis and experimental characterization of the center notch flexural test specimen for mode II interlaminar fracture10.1177/002199838902300801 ↗
16. Irreversible constitutive law for modeling the delamination process using interfacial surface discontinuities10.1016/j.compstruct.2003.11.005 ↗
17. Williams · 1984
18. The shear coefficient in Timoshenko’s bfam theory10.1115/1.3625046 ↗
19. A finite element calculation of stress intensity factors by a modified crack closure integral10.1016/0013-7944(77)90013-3 ↗
20. Irwin GR.Onset of fast crack propagation in high strength steel and aluminum alloys. In: Sagamore research conference proceedings; 1956. p. 289–305.10.21236/AD0099305 ↗
21. ABAQUS/CAE User’s Manual. Providence, RI: ABAQUS Inc.; 2003.
22. Strain energy release rate analysis of the end-notched flexure specimen using the finite-element method10.1520/CTR10275J ↗
23. Effect of friction on the perceived mode II delamination toughness from three- and four-point bend end-notched flexure tests