... particular tests. Five different seam types were evaluated, compared, and contrasted under different applied stress levels. Qualitatively, the morphology patterns were grouped into five categories: long fibrous, short fibrous, flake, hackle, and lamellar. These morphologies appear to be related...

... that SCR of these geomembrane sheets vary over a wide range from a minimum of 4 hours to over 600 hours. geomembrane polyethylene ductile brittle stress cracking resistance crystallinity amorphous lamellae tie molecules ductile-brittle transition fracture fiber hackle Yick H. Halse...

... is explicit, universally applicable, and self-consistent should be helpful in aiding communication among fractographers. This paper suggests a possible unified system for discussion and refinement. crack surfaces Wallner lines hackle scarps V. D. Frechette^ Markings on Crack Surfaces of Brittle...