TY - JOUR
T1 - Effect of disorder and notches on crack roughness
AU - Nukala, Phani K.V.V.
AU - Zapperi, Stefano
AU - Alava, Mikko J.
AU - Šimunović, Srdan
PY - 2007/11/15
Y1 - 2007/11/15
N2 - We analyze the effect of disorder and notches on crack roughness in two dimensions. Our simulation results based on large system sizes and extensive statistical sampling indicate that the crack surface exhibits a universal local roughness of ζloc =0.71 and is independent of the initial notch size and disorder in breaking thresholds. The global roughness exponent scales as ζ=0.87 and is also independent of material disorder. Furthermore, we note that the statistical distribution of crack profile height fluctuations is also independent of material disorder and is described by a Gaussian distribution, albeit deviations are observed in the tails.
AB - We analyze the effect of disorder and notches on crack roughness in two dimensions. Our simulation results based on large system sizes and extensive statistical sampling indicate that the crack surface exhibits a universal local roughness of ζloc =0.71 and is independent of the initial notch size and disorder in breaking thresholds. The global roughness exponent scales as ζ=0.87 and is also independent of material disorder. Furthermore, we note that the statistical distribution of crack profile height fluctuations is also independent of material disorder and is described by a Gaussian distribution, albeit deviations are observed in the tails.
UR - http://www.scopus.com/inward/record.url?scp=36248952711&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.76.056111
DO - 10.1103/PhysRevE.76.056111
M3 - Article
AN - SCOPUS:36248952711
SN - 1539-3755
VL - 76
JO - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
JF - Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
IS - 5
M1 - 056111
ER -