... and statistically significant trends. The relationship between the elastic modulus of the AC layer and the temperature gradient within the layer was investigated. The relationship between the frost penetration in unbound layers and their backcalculated modulus was studied. Modeling such variability using linear...

... A process for automated temperature gradient crack growth testing has been developed and shown to be effective in characterizing crack growth properties which vary as a function of temperature. This method, which controls temperature while correcting for measurable temperature dependent material...

... of plastic work rate provided by the thickness reduction near the fracture plane is a useful preliminary assessment of the fracture toughness. crack arrest dynamic fracture fracture mechanics temperature gradient toughness wide-plate testing Roland deWit, 1 Richard J. Fields, ~and George R...

.... The vapor pressure differential of the inside and outside air determines the driving force of the vapor. The vapor pressure and permeability of the primary and secondary vapor retarders determines how much water vapor may diffuse into the wall cavity. If the temperature gradients at the vapor retarder...

... found in the first test are also discussed. crack arrest dynamic fracture steel temperature gradient toughness wideplate testing fracture mechanics Roland deWit, ^ Samuel R. Low III,' and Richard J. Fields^ Wide-Plate Crack-Arrest Testing: Evolution of Experimental Procedures REFERENCE...