ASTM E399 covers the standard test method for linear-elastic plane-strain fracture toughness K_Ic of metallic materials. The test specimen used is a fatigue pre-cracked material that is under linear-elastic, plane-strain conditions. The fracture toughness property K_Ic is the resistance of fracture of the test specimen while increasing crack-displacement forces. Special test machine requirements are necessary for meeting this standard. ASTM outlines the specific information regarding the displacement gage, loading fixture design, requirements for individual specimen configurations, and details on procedures for pre-cracking the specimen. Special machine requirements are also outlines for rapid crank-displacement force testing.
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ASTM E399 Fracture Toughness Metal Test Equipment | TestResources
ASTM E399 Fracture Toughness Metal Test Equipment | TestResources
OVERVIEW
Composition analysis--metals/alloys; Cracking--metallic materials; Defects--metals/alloys; Fabricated materials; Failure end point--metals/alloys; Fatigue; Fracture testing--metals/alloys; Loading tests--metals/alloys; Metallurgical materials/applications; Metals and metallic materials; Plane-strain testing; Quality control (QC)--metals; Strain testing--metallic materials; Stress--metallic materials; Tritensile plane strain;Composition analysis--metals/alloys; Cracking--metallic materials; Defects--metals/alloys; Fabricated materials; Failure end point--metals/alloys; Fatigue; Fracture testing--metals/alloys; Loading tests--metals/alloys; Metallurgical materials/applications; Metals and metallic materials; Plane-strain testing; Quality control (QC)--metals; Strain testing--metallic materials; Stress--metallic materials; Tritensile plane strain;