caa a22 4500 469124512 CHVBK 20180323133147.0 cr unu---uuuuu 170328e19920601xx s 000 0 eng 10.1007/BF00035192 doi (NATIONALLICENCE)springer-10.1007/BF00035192 Elastic anisotropy and micro-damage processes in polycrystalline ice [Elektronische Daten] Part II: Numerical simulations [Mao Wu, S. Shyam Sunder] This paper discusses numerical predictions of a microstructural damage model for polycrystalline ice which is presented in a companion paper [1]. The results are relevant for ice deforming at the high end of the quasi-static domain of loading. First, the fracture mechanics-based model of damage is investigated by comparing model predictions of the stresses to form (nucleate) the first microcracks with test data. This is followed by a detailed simulation of loading under uniaxial compression using the damage model and an internal variable creep model, also summarized in the companion paper [1]. This simulation allows the prediction of the evolving damaged elastic properties, and delineates the relative contribution of creep and microcracking to the total deformation. The importance of load history on the deformation response is then illustrated by studying the influence of load path in biaxial loading. In these simulations, the competition between the mechanisms of failure by shear faulting and axial splitting is discussed in terms of the development of compliance anisotropy in the damaged body. Finally, the critical crack density is used as a macroscopic failure criterion to predict compressive strengths in the ductile-to-brittle transitional domain of strain rates, and its validity in more general states of stress involving different failure modes is questioned. Kluwer Academic Publishers, 1992 Wu Mao Department of Civil Engineering, Massachusetts Institute of Technology, 02139, Cambridge, Massachusetts, USA aut Shyam Sunder S. Department of Civil Engineering, Massachusetts Institute of Technology, 02139, Cambridge, Massachusetts, USA aut International Journal of Fracture Kluwer Academic Publishers 55/4(1992-06-01), 375-396 0376-9429 55:4<375 1992 55 10704 https://doi.org/10.1007/BF00035192 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00035192 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Mao Department of Civil Engineering, Massachusetts Institute of Technology, 02139, Cambridge, Massachusetts, USA aut NATIONALLICENCE 700 1- Shyam Sunder S. Department of Civil Engineering, Massachusetts Institute of Technology, 02139, Cambridge, Massachusetts, USA aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 55/4(1992-06-01), 375-396 0376-9429 55:4<375 1992 55 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence SWISSBIB 469124377 BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer