Dynamic response ofCu46Zr54metallic glass to high-strain-rate shock loading: Plasticity, spall, and atomic-level structures

The dynamic response of the turbine blade materials is indispensable for analysis of erosions of turbine blades as a result of impulsive loading associated with gas flow. This paper is concerned with the dynamic material properties of the Inconel 718 alloy which is widely used in the high speed turbine blade. The dynamic response at the corresponding level of the strain rate should be acquired with an adequate experimental technique and apparatus due to the inertia effect and the stress wave propagation. In this paper, the dynamic response of the Inconel 718 at the intermediate strain rate ranged from 1/s to 400/s is obtained from the high speed tensile test and that at the high strain rate above 1000/s is obtained from the split Hopkinson pressure bar test. The effects of the strain rate on the dynamic flow stress, the strain rate sensitivity and the failure elongation are evaluated with the experimental results. Experimental results from both the quasi-static and the high strain rate up to 3000/s are interpolated in order to construct the constitutive relation that should be applied to simulate the dynamic behavior of the turbine blade made of the Inconel 718.

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Dynamic Fracture Feature in Metals under Very High Strain Rate Induced by Shock Loading

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.145-149.273 ◽

1997 ◽

Vol 145-149 ◽

pp. 273-278 ◽

Cited By ~ 1

Author(s):

C.W. Sun ◽

S.P. Feng ◽

S.M. Zhuang ◽

X.P. Long

Keyword(s):

High Strain Rate ◽

Strain Rate ◽

Dynamic Fracture ◽

Shock Loading ◽

High Strain ◽

Fracture Feature ◽

Very High

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Energy dissipation and high-strain rate dynamic response of E-glass fiber composites with anchored carbon nanotubes

Composites Part B Engineering ◽

10.1016/j.compositesb.2015.10.028 ◽

2016 ◽

Vol 88 ◽

pp. 44-54 ◽

Cited By ~ 15

Author(s):

Veera M. Boddu ◽

Matthew W. Brenner ◽

Jignesh S. Patel ◽

Ashok Kumar ◽

P. Raju Mantena ◽

...

Keyword(s):

Carbon Nanotubes ◽

Energy Dissipation ◽

Dynamic Response ◽

High Strain Rate ◽

Strain Rate ◽

Glass Fiber ◽

High Strain ◽

Fiber Composites ◽

Glass Fiber Composites ◽

Rate Dynamic

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Dynamic response characteristic of 7N01/7A01/7050 aluminium multilayer plate at high strain rate

Progress in Natural Science Materials International ◽

10.1016/j.pnsc.2020.10.005 ◽

2021 ◽

Author(s):

Guochuan Zhu ◽

Xiwu Li ◽

Baiqing Xiong ◽

Zhihui Li ◽

Yongan Zhang ◽

...

Keyword(s):

Dynamic Response ◽

High Strain Rate ◽

Strain Rate ◽

High Strain ◽

Response Characteristic ◽

Multilayer Plate ◽

Dynamic Response Characteristic

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Variations in Hardness with Position In One Dimensionally Recovered Shock Loaded Metals

EPJ Web of Conferences ◽

10.1051/epjconf/201818302013 ◽

2018 ◽

Vol 183 ◽

pp. 02013 ◽

Cited By ~ 1

Author(s):

G. Whiteman ◽

D.L. Higgins ◽

B. Pang ◽

J.C.F. Millett ◽

Y-L. Chiu ◽

...

Keyword(s):

High Strain Rate ◽

Strain Rate ◽

Shock Loading ◽

Mechanical Response ◽

High Strain ◽

Cold Work ◽

Constitutive Models ◽

Target Assembly ◽

One Dimensional ◽

The Impact

The microstructural and mechanical response of materials to shock loading is of the utmost importance in the development of constitutive models for high strain-rate applications. However, unlike a purely mechanical response, to ensure that the microstructure has been generated under conditions of pure one dimensional strain, the target assembly requires both a complex array of momentum traps to prevent lateral releases entering the specimen location from the edges and spall plates to prevent tensile interactions (spall) affecting the microstructure. In this paper, we examine these effects by performing microhardness profiles of shock loaded copper and tantalum samples. In general, variations in hardness both parallel and perpendicular to the shock direction were small indicating successful momentum trapping. Variations in hardness at different locations relative to the impact face are discussed in terms of the initial degree of cold work and the ability to generate and move dislocations in the samples.

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