Strain-rate dependent fracture initiation

Kipp, M.E.; Grady, D. E.; Chen, E. P.

doi:10.1007/bf00016585

Cited by 139 publications

(42 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Crack propagation induces a local stress release. This aspect is in a good agreement with the fineness of the fragments reported in [53][54][55][56][57][58][59][60][61][62][63][64].…”

Section: Hard Metals: Overview and Some Propertiessupporting

confidence: 92%

Manufacturing, Composition, Properties and Application of Sintered Hard Metals

Peter¹,

Rosso²

2017

Powder Metallurgy - Fundamentals and Case Studies

View full text Add to dashboard Cite

Among other materials, hard metals represent an important family of functional materials. They show properties that are combinations of those of their constituents. The general idea while using hard metals is to exploit their excellent properties in terms of hardness, toughness, wear resistance, and chemical stability. These characteristics made hard metals as promising candidate for use as a cutting tool, which constitutes their main area of application. Depending on the particular use, the most important properties can be achieved: (i) by properly selecting the constituents made up the whole composition, (ii) by varying the relative composition of the phases, or (iii) by applying a suitable hard metal coating layer on the top of the cutting tool. This chapter presents a general overview of the actual scenario concerning different tool materials, including a short history and description of state-of-the-art techniques as regards their composition, their manufacturing routes and their most important properties. Some results of the own research in this field are carried out during the years will integrate this part.

show abstract

“…Crack propagation induces a local stress release. This aspect is in a good agreement with the fineness of the fragments reported in [53][54][55][56][57][58][59][60][61][62][63][64].…”

Section: Hard Metals: Overview and Some Propertiessupporting

confidence: 92%

Manufacturing, Composition, Properties and Application of Sintered Hard Metals

Peter¹,

Rosso²

2017

Powder Metallurgy - Fundamentals and Case Studies

View full text Add to dashboard Cite

show abstract

“…Hence, the anisotropic property of Barre granite due to the presence of preferred microcracks has less influence on dynamic catastrophic failure. In addition, based on their study, KIPP and GRADY (1980) found the insensitivity of the fracture stress over a large range of crack sizes, which suggests that the inherent flaws in the rock are the basis for the rate dependence of fracture stress, i.e., it is a geometric and not a material effect . Thus, the effects of anisotropy on the tensile strength of Barre granite appear to be overshadowed by the dynamic effect.…”

Section: Discussionmentioning

confidence: 99%

Loading Rate Dependence of Tensile Strength Anisotropy of Barre Granite

Dai

Xia

2010

Pure Appl. Geophys.

112

View full text Add to dashboard Cite

Granitic rocks usually exhibit strongly anisotropy due to pre-existing microcracks induced by long-term geological loadings. The understanding of the rock anisotropy in mechanical properties is critical to a variety of rock engineering applications. In this paper, Brazilian tests are conducted statically with a material testing machine and dynamically with a split Hopkinson pressure bar system to measure both static and dynamic tensile strength of Barre granite. To understand the anisotropy in tensile strength, samples are cored and labelled using the three principle directions of Barre granite to form six sample groups. For dynamic tests, a pulse shaping technique is used to achieve dynamic equilibrium in the samples during the dynamic test. The finite element method is then implemented to formulate equations that relate the failure load to the material tensile strength by employing an orthotropic elastic material model. For samples in the same orientation group, the tensile strength shows clear loading rate dependence. The tensile strengths also exhibit clear anisotropy under static loading while the anisotropy diminishes as the loading rate increases, which may be due to the interaction of pre-existing microcracks.

show abstract

“…Strain rate dependent spall has been investigated through the time-dependent stress intensity factor of a single crack [Kipp et al, 1980], through statistical crack distributions , and, more recently, through thermodynamic energy conditions for spall fracture . These studies all suggest the same functional dependence for the spall strength, and the latter provides the strain rate dependent criteria.…”

Section: Tt^cmentioning

confidence: 99%

Dynamic properties of ceramic materials

Grady¹,

Wise²

1993

View full text Add to dashboard Cite

Strain-rate dependent fracture initiation

Cited by 139 publications

References 5 publications

Manufacturing, Composition, Properties and Application of Sintered Hard Metals

Manufacturing, Composition, Properties and Application of Sintered Hard Metals

Loading Rate Dependence of Tensile Strength Anisotropy of Barre Granite

Dynamic properties of ceramic materials

Contact Info

Product

Resources

About