Synopsis of Mechanical and Physical Processes

Finally in this section we attempt to draw together the evidence provided by the various techniques employed to study molecular fracture. For clarity, this synopsis is presented as a brief catalogue of sequential events linking the application of stress to macroscopic deformation arri fracture via the nmlecular processes that may occur. 

How far the fracture parameters of a specimen, such as lifetime under stress and fracture strength, depend on Regime I or Regime II processes will depend on the material s physical properties, the specimen geometry (ie. are there pre-existing cracks) and the conditions of test (rate, temperature, environment). 

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