Title: Raw Data: Nucleation of frictional sliding by coalescence of microslip -- Part 1 Authors: Styfen Schaer, Gabriele Albertini, David S. Kammer Date: 2021/04/21 Description: The numerical simulations model the nucleation process of sliding along a frictional interface governed by a linear slip-weakening friction law. The interface is characterized by a (deterministic or stochastic) heterogeneous strength profile. A uniform load is applied and slowly increased until global sliding occurs. The nucleation process occurs through the growth of localized slip patches, which coalesce and eventually lead to a critical nucleation patch propagating dynamically across the entire interface. The characteristic length scale of the strength profile is varied. Part: This is part 1. It includes the simulation with deterministic strength profiles. This data is shown in Fig. 2,3 and 4 of Schaer et al., (IJSS, 2021). Data and File Format: Simulations are identified by a number refered to as the 'simid'. Each simulation contains various input files (file extension .in.txt) which contain the parameters for the simulation and the (deterministic or stochastic) strength profile of the interface. Simulation output are stored in HDF5 (file extension .h5). Each field is saved as a dataset inside the HDF5 file. The dataset name corresponds to the field name. If the field name ends with an integer, it indicates the vector component (0=x, 1=y, 2=z). Typically, each dataset is of two dimensions with [t,n] where t is dumpstep and n is a discrete point (e.g. node). The time of the dumpsteps can be accessed in the time field at [t,0]. The x coordinate of a node n can be accessed in the coord_0 field with [0,n]. The output were written from Python using h5py. Simulations: tau_amp / hat tau_cr = 0.2 in tar 1: #simids 1159, 1161, 1163, 1165, 1167, 1169, 1171, 1276, 1279, 1173, 1175, 1177, 1179, 1181, 1183, 1185, 1187, 1189 tau_amp / hat tau_cr = 0.3 in tar 2: #simids 1143, 1144, 1145, 1146, 1147, 1148, 1149, 1277, 1280, 1150, 1151, 1152, 1153, 1154, 1155, 1156, 1157, 1158 tau_amp / hat tau_cr = 0.4 in tar 3: #simids 1160, 1162, 1164, 1166, 1168, 1170, 1172, 1278, 1281, 1174, 1176, 1178, 1180, 1182, 1184, 1186, 1188, 1190 sim of Fig. 2 & 3, and animation in tar 4: #simids 1566, 1565, 1244 References: Schaer, S., Albertini, G., Kammer, D.S. (2021). "Nucleation of frictional sliding by coalescence of microslip." International Journal of Solids and Structures. https://doi.org/10.1016/j.ijsolstr.2021.111059