Mixed mode (I and II) fracture behavior of nanoglass and metallic glass
Source abstract
Abstract
Nanoglasses (NGs) have shown large tensile ductility and hardness than metallic glasses (MGs) used to synthesized them. The mixed mode (I and II) fracture experiments and complementary finite element (FE) simulations reported significant influence of applied mode mixity on the crack tip plasticity and fracture toughness of MGs. However, no such study has been under taken for NGs which are synthesized from MGs only. Therefore, two-dimensional, plane strain, FE analysis on the stationary crack in nanoglass (NG) and metallic glass (MG) subjected to mixed mode (I and II) loading conditions are performed under small scale yielding (SSY) conditions by employing the constitutive model for MGs. It is found that the crack tip plasticity is markedly affected by mode mixity in both NGs and MGs, and the shear bands ahead of crack tip appears to be more diffused in the former than the latter. Further, the plastic zone size ahead of the crack tip in NG is larger than that for MG for identical loading conditions. Also, FE simulations predict enhancement in fracture toughness of both the alloys with increase in the mode I contribution. In addition, the results suggest that the NGs may not exhibit larger fracture toughness than MGs with identical composition, although they exhibit larger tensile ductility.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Metallic Glasses and Amorphous Alloys · Microstructure and mechanical properties · Surface Roughness and Optical Measurements
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (45)
Show source-provided references
1. Nanoglasses: a new kind of noncrystalline materials10.3762/bjnano.4.61 ↗
2. Structure and properties of nanoglasses10.1002/adem.201800404 ↗
3. Modified atomic structure in a Pd-Fe-Si nanoglass10.1016/0022-3093(89)90007-0 ↗
4. Formation and properties of Au-based nanograined metallic glasses10.1016/j.actamat.2011.07.007 ↗
5. Atomic structure and structural stability of Sc75Fe25 nanoglasses10.1021/nl2038216 ↗
6. Structural investigation and mechanical properties of a representative of a new class of materials: nanograined metallic glasses10.1088/0957-4484/24/4/045610 ↗
7. Thermal and plastic behavior of nanoglasses10.1557/jmr.2014.101 ↗
8. Plasticity of a scandium-based nanoglass10.1016/j.scriptamat.2014.11.010 ↗
9. Sample size effects on strength and deformation mechanism of Sc75Fe25 nanoglass and metallic glass10.1016/j.scriptamat.2016.01.036 ↗
10. Ni-P nanoglass prepared by multi-phase pulsed electrodeposition10.1080/21663831.2016.1264495 ↗
11. Cu-Zr nanoglasses: atomic structure, thermal stability and indentation properties10.1016/j.actamat.2017.07.001 ↗
12. Micromechanical mechanism of yielding in dual nano-phase metallic glass10.1016/j.scriptamat.2018.05.050 ↗
13. Tuning the Curie temperature of Fe90Sc10 nanoglasses by varying the volume fraction and the composition of the interfaces10.1016/j.scriptamat.2018.09.025 ↗
14. Magnetic Tb75Fe25 nanoglass for cryogenic permanent magnet undulator10.1021/acsanm.0c01674 ↗
15. Nanoindentation creep behavior of electrodeposited Ni-P nanoglass films10.1016/j.intermet.2019.106480 ↗
16. Influence of topological structure and chemical segregation on the thermal and mechanical properties of Pd-Si nanoglasses10.1016/j.actamat.2020.03.021 ↗
17. On the differences in shear band characteristics between a binary Pd-Si metallic and nanoglass10.1016/j.scriptamat.2020.09.009 ↗
18. From nanoglasses to bulk massive glasses10.1063/1.3130209 ↗
19. Investigation of pressure sensitive plastic flow in nanoglasses from finite element simulations10.1016/j.scriptamat.2020.01.022 ↗
20. Investigation of softening induced indentation size effect in nanoglass and metallic glass
21. Deformation behavior of bulk and nanostructured metallic glasses studied via molecular dynamics simulations10.1103/PhysRevB.83.100202 ↗
22. A transition from localized shear banding to homogeneous superplastic flow in nanoglass10.1063/1.4833018 ↗
23. Ductility enhancement in nanoglass: role of interaction stress between flow defects10.1080/09500839.2014.961584 ↗
24. Influence of microstructural features on the plastic deformation behavior of metallic nanoglasses10.1016/j.actamat.2019.02.033 ↗
25. On the notch sensitivity of CuZr nanoglass10.1063/1.4873238 ↗
26. Mixed mode (I and II) crack tip fields in bulk metallic glasses10.1016/j.jmps.2009.07.006 ↗
27. Achieving stable plastic flow in a Zr- base bulk metallic glass under tailored mixed mode (I/II) loading conditions10.1016/j.msea.2019.138695 ↗
28. On the mechanism and the length scales involved in the ductile fracture of bulk metallic glass10.1016/j.actamat.2012.11.033 ↗
29. Wallner lines, crack velocity and mechanisms of crack nucleation and growth in a brittle bulk metallic glass10.1016/j.actamat.2014.07.024 ↗
30. Fracture of notched ductile bulk metallic glass bars subjected to tension-torsion: experiments and simulations10.1016/j.actamat.2019.02.025 ↗
31. A theory for amorphous viscoplastic materials undergoing finite deformations, with application to metallic glasses10.1016/j.jmps.2004.12.006 ↗
32. Plane strain indentation of a Zr-based metallic glass: experiments and numerical simulation10.1016/j.actamat.2005.08.040 ↗
33. 1996
34. Mode I crack tip fields in amorphous materials with application to metallic glasses10.1016/j.actamat.2007.08.017 ↗
35. On numerical implementation of an isotropic elastic-viscoplastic constitutive model for bulk metallic glasses10.1088/0965-0393/19/1/015002 ↗
36. Finite element analysis of tensile deformation of nanoglass-metallic glass laminate composites10.1016/j.commatsci.2019.01.031 ↗
37. Spherical indentation response of metallic glasses10.1016/j.actamat.2004.03.028 ↗
38. Nanoscale structural evolution and anomalous mechanical response of nanoglasses by cryogenic thermal cycling10.1021/acs.nanolett.8b01007 ↗
39. Mathematical analysis in the mechanics of fracture
40. Mode II fracture behaviour of a Zr-based bulk metallic glass10.1016/j.jmps.2006.05.003 ↗
41. Shear fracture in bulk metallic glass composites10.1016/j.actamat.2021.116963 ↗
42. Elastic-plastic fracture behaviour of an aluminium alloy under mixed mode loading10.1016/0022-5096(90)90034-2 ↗
43. A finite element analysis of mixed-mode fracture initiation by ductile failure mechanisms10.1016/0022-5096(94)90080-9 ↗
44. An experimental investigation of constraint effect on mixed mode fracture initiation in a ductile aluminium alloy10.1016/S1359-6454(99)00015-4 ↗
45. Symington · 1988