%0 conference lecture %@ %A Heerens, J., Hellmann, D., Ainsworth, R.A. %D 2001 %J From Charpy to Present Impact Testing, Charpy Centenary Conference - CCC 2001 %T Fracture toughness determination in the ductile to brittle transition regime - pre-cracked Charpy specimens compared with standardard compact specimens %U %X