Figure 7
From: Pre-Yield Non-Affine Fluctuations and A Hidden Critical Point in Strained Crystals
a Scaled stress σ/σ* vs. ε/ε* in the 2D-LJ solid at T = 0.4. The symbols, which have the same meaning as in Fig. 2a, shows values for different ρ. Inset shows non-linearity Δ vs. ε. The vertical dashed line marks ε*. b Distribution of local stress, P(σB) obtained by dividing the simulation cells into 1600 equal sub-blocks. At small strains the distribution is Lorentzian. As ε crosses ε*, however, spatially correlated dislocation structures develop making P(σB) assymetric and broad. Inset shows variation of skewness (triangles) 
and kurtosis (circles) 
of P(σB) with ε. Note that μ4 changes sign close to ε = ε*; μ3 = μ4 = 0 for a Gaussian. Here 
and Σ are the mean and standard deviation of P(σB).
