BS 7448-3:2005 PDF

Scope: This part of BS 7448 describes a method for determining the opening mode plane strain fracture toughness KIc, the critical crack tip opening displacement (CTOD) fracture toughness and the critical J fracture toughness of metallic materials. The method uses fatigue precracked specimens tested in displacement control at rates of increase in stress intensity factor greater than 3.0 MPa·ms but less than 3 000 MPa·ms during the initial elastic deformation. Stress intensity factors greater than 3 000 MPa·ms are covered in Annex A. These rates are greater than those permitted in BS 7448-1. The definition of fracture toughness values relevant to particular structural integrity assessments is outside the scope of this British Standard. NOTE This standard does not cover integrity assessments. Such assessments are covered in BS 7910. note:1) 1 N.mm = 0.0316 MPa·m = 0.0316 MN·m.

BS 7448-3:2005 Referenced Document

BS 7935-1 Constant amplitude dynamic force calibration — Part 1 : Calibration and verification of non - resonant uniaxial dynamic testing systems — Method
BS 7935-2 Constant amplitude force calibration — Part 2 : Calibration of the calibration device instrumentation to be used for the dynamic calibration of non - resonant uniaxial dynamic testing systems — Method
BS EN ISO 12737 Metallic materials. Determination of plane-strain fracture toughness*， 2011-01-31 Update
BS EN ISO 7500-1 Metallic materials. Calibration and verification of static uniaxial testing machines. Tension/compression testing machines. Calibration and verification of the force-measuring system*， 2018-03-31 Update

0000 BS 7448-3:2005(2007)
2005 BS 7448-3:2005 Fracture mechanics toughness tests - Part 3.Method for determination of fracture toughness of metallic materials at rates of increase in stress intensity factor greater than 3.0 MPa m0.5 s-1
1987 BS 6729:1987 Method for determination of the dynamic fracture toughness of metallic materials