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Fracture toughness

About: Fracture toughness is a research topic. Over the lifetime, 39642 publications have been published within this topic receiving 854338 citations.


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Journal ArticleDOI
TL;DR: This work presents a series of low-density, Ti-based BMG composites with combinations of high strength, tensile ductility, and excellent fracture toughness.
Abstract: The mechanical properties of bulk metallic glasses (BMGs) and their composites have been under intense investigation for many years, owing to their unique combination of high strength and elastic limit. However, because of their highly localized deformation mechanism, BMGs are typically considered to be brittle materials and are not suitable for structural applications. Recently, highly-toughened BMG composites have been created in a Zr–Ti-based system with mechanical properties comparable with high-performance crystalline alloys. In this work, we present a series of low-density, Ti-based BMG composites with combinations of high strength, tensile ductility, and excellent fracture toughness.

324 citations

Book ChapterDOI
01 Jan 1977

324 citations

Journal ArticleDOI
TL;DR: In this paper, the straight-through-cracks assumption was applied to the cracked chevron-notched Brazilian disc (CCNBD) specimen and the semicircular bend (SCB) specimen.

323 citations

Journal ArticleDOI
TL;DR: In this article, the fracture behavior of Al2O3 containing 5 vol% 0.15μm SiC particles was investigated using indentation techniques, and a significant increase in strength was achieved by the addition of SiC particle to the base Al 2O3.
Abstract: The fracture behavior of Al2O3 containing 5 vol% 0.15μm SiC particles was investigated using indentation techniques. A significant increase in strength was achieved by the addition of SiC particles to the base Al2O3. Specifically, the strength increased from 560 MPa for Al2O3 to 760 MPa for the composite samples (average values for unindented hotpressed bars tested in four-point bending). After annealing for 2 h at 1300°C, the average strength of the composite samples increased to about 1000 MPa. Toughness was estimated using indentation-strength data. While there was a slight increase in toughness, the increase was not sufficient to account for the increase in the unindented strength on SiC particle addition. It is suggested that the observed strengthening and apparent toughening were due to a machining-induced compressive surface stress.

323 citations

Journal ArticleDOI
TL;DR: In this paper, the fracture properties of thin brittle films on compliant substrates for flexible optoelectronic devices were evaluated using experimental methods and their relevant analysis to evaluate fracture properties.

322 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023972
20222,107
20211,361
20201,324
20191,383
20181,305