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Definition
| A mode of fracture that is attended by extensive gross plastic deformation. |
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Definition
| Fracture that occurs by rapid crack propagation and without appreciable macroscopic deformation. |
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Definition
| Fracture of polycrystalline materials by crack propagation through the grains. |
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Definition
| Fracture of polycrystalline materials by crack propagation along grain boundaries. |
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Definition
| A technique of fracture analysis used to determine the stress level at which preexisting cracks of known size will propagate, leading to fracture. |
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Definition
| A small flaw (internal or surface) or a structural discontinuity at which an applied tensile stress will be amplified and from which cracks may propagate. |
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Definition
| The measure of a material's resistance to fracture when a crack is present. |
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Definition
| The condition, important in fracture mechanical analyses, wherein, for tensile loading, there is zero strain in a direction perpendicular to both the stress axis and the direction of crack propagation; this condition is found in thick plates, and the zero-strain direction is perpendicular to the plate surface. |
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Term
| plane strain fracture toughness |
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Definition
| For the condition of plane strain, the measure of a material's resistance to fracture when a crack is present. |
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Definition
| Tests that may be used to measure the impact energy of notch toughness of a standard notched specimen. An impact blow is imparted to the specimen by means of a weighed pendulum. |
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Definition
| A measure of energy absorbed during the fracture of a specimen of standard dimensions and geometry when subjected to very rapid. |
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Term
| ductile-to-brittle transition |
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Definition
| The transition from ductile to brittle behavior with a decrease in temperature exhibited by some low-strength steel (BCC) alloys; the temperature range over which the transition occurs is determined by Charpy and Izod impact tests. |
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