Index Catalog // ScholarsArchive@OSU

Size-dependent fracture toughness of bulk-metallic glasses

Creator:: Gludovatz, B., Naleway, S. E., Ritchie, R. O., and Kruzic, J. J.
Abstract:: The fracture toughness is a critical material property that determines engineering performance. However, as is well known for crystalline materials, if certain sample geometry and size requirements are not met, test results become sample-size dependent and difficult to compare among different studies. Here, the room-temperature fracture toughness of the Zr-based...
Resource Type:: Article

Fatigue life, fatigue crack propagation and fracture toughness study of 7075 aluminum alloy subjected to thermomechanical processing

Creator:: Lee, Moon H. (Moon Hee), 1949-
Abstract:: Due to its high strength/weight ratio, 7075 aluminum alloy has been widely used as an aerospace material. However, it has relatively low fatigue strength and low fracture toughness in the T6 condition. Thermomechanical processing, including pre-cyclic loading and stretching at high and ambient temperatures, has been investigated with the aim...
Resource Type:: Dissertation
Full Text:: 14, 1984 Title: Fatigue Life, Fatigue Crack Propagation and Fracture Toughness Study of 7075

A comparison of experimental mode I analysis methods for the interlaminar fracture toughness characterization of graphite/epoxy composite materials

Creator:: Keary, Paul Edward
Abstract:: Three approaches for evaluating mode I interlaminar strain energy release rates in graphite/epoxy composites were compared using experimental data from double cantilever beam specimens. Expressions for evaluating strain energy release rates were arrived at based on assumptions regarding specimen geometry and material behavior. The calculations included the direct method of...
Resource Type:: Masters Thesis
Full Text:: the interlaminar fracture toughness characterization of graphite/epoxy composite materials AN

Fracture Toughness of Co4Sb12 and In0.1Co4Sb12 Thermoelectric Skutterudites Evaluated by Three Methods

Creator:: Eilertsen, James, Subramanian, M. A., and Kruzic, J. J.
Abstract:: Interstitially filled skutterudites are a promising class of state-of-the-art thermoelectric materials. Although thermoelectrics are exposed to significant thermal stresses, little information is known about the fracture toughness of interstitially doped skutterudites. This work explores the fracture toughness of undoped Co₄Sb₁₂ and indium doped In₀.₁Co₄Sb₁₂ skutterudites using three methods: 1) Vickers...
Resource Type:: Article
Full Text:: Fracture Toughness of Co4Sb12 and In0.1Co4Sb12 Thermoelectric Skutterudites Evaluated by Three Methods

Crack propagation and fracture toughness of solid balsa used for cores of sandwich composites

Creator:: Mohammadi, Meisam Shir and Nairn, John A.
Abstract:: To better understand the suitability of balsa wood as a core material for sandwich composites, this paper presents a detailed study of the fracture properties of balsa. The experiments looked at mode I, mode II, and mixed-mode fracture with crack growth both parallel and perpendicular to the wood grain direction....
Resource Type:: Article
Full Text:: Crack propagation and fracture toughness of solid

Using Crack Propagation Fracture Toughness to Characterize the Durability of Wood and Wood Composites

Creator:: Mirzaei, B., Sinha, A., and Nairn, J. A.
Abstract:: We measured fracture resistance curves (or R curves) for laminated veneer lumber (LVL) made with Douglas fir veneer and polyvinyl acetate resin and for solid wood Douglas fir. The LVL and solid wood R curves were the same for initiation of fracture, but the LVL toughness rose much higher than...
Resource Type:: Article
Full Text:: Using Crack Propagation Fracture Toughness to Characterize the

The effect of elevated temperature exposure on the fracture toughness of solid wood and structural wood composites

Creator:: Sinha, Arijit, Nairn, John A., and Gupta, Rakesh
Abstract:: Fracture toughness of wood and wood composites has traditionally been characterized by a stress intensity factor, an initiation strain energy release rate (G init) or a total energy to fracture (G f). These parameters provide incomplete fracture characterization for these materials because the toughness changes as the crack propagates. Thus,...
Resource Type:: Article
Full Text:: exposure on the fracture toughness of solid wood and structural wood composites Arijit Sinha • John A

The effect of elevated temperature exposure on the fracture toughness of solid wood and structural wood composites

Creator:: Sinha, Arijit, Nairn, John A., and Gupta, Rakesh
Abstract:: Fracture toughness of wood and wood composites has traditionally been characterized by a stress intensity factor, an initiation strain energy release rate (G[subscript init]) or a total energy to fracture (G[subscript f]). These parameters provide incomplete fracture characterization for these materials because the toughness changes as the crack propagates. Thus...
Resource Type:: Article
Full Text:: State University Corvallis, OR, USA ABSTRACT Fracture toughness of wood and wood composites has

Fracture energies of Zircaloy and some zirconium alloys

Creator:: Rawers, James C.
Abstract:: The fracture mechanics of Charpy V-notch specimens of Zircaloy-4 and phosphorus contaminated Zircaloy-4 were investigated. Three-point bend and impact tests with Charpy V-notch samples provided an efficient and economical method of fracture evaluation. Fracture failure was monitored by the force-displacement curve. Failure was initially analyzed using fracture toughness values as...
Resource Type:: Dissertation
Full Text:: fracture toughness values as recommended by ASTM. Zirconium, a ductile material, failed to meet the

On the fracture mechanics of oriented flakeboard

Creator:: Lei, Young-kong
Resource Type:: Dissertation
Full Text:: is hypothesized that its fracture toughness (KIC) is determined by the size and frequency of the

ScholarsArchive@OSU

Size-dependent fracture toughness of bulk-metallic glasses

Fatigue life, fatigue crack propagation and fracture toughness study of 7075 aluminum alloy subjected to thermomechanical processing

A comparison of experimental mode I analysis methods for the interlaminar fracture toughness characterization of graphite/epoxy composite materials

Fracture Toughness of Co4Sb12 and In0.1Co4Sb12 Thermoelectric Skutterudites Evaluated by Three Methods

Crack propagation and fracture toughness of solid balsa used for cores of sandwich composites

Using Crack Propagation Fracture Toughness to Characterize the Durability of Wood and Wood Composites

The effect of elevated temperature exposure on the fracture toughness of solid wood and structural wood composites

The effect of elevated temperature exposure on the fracture toughness of solid wood and structural wood composites

Fracture energies of Zircaloy and some zirconium alloys

On the fracture mechanics of oriented flakeboard

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