Numerical study on local effects of composition and geometry in self-healing solders

Sirok, Georg; Kraker, Elke; Magnien, Julien; Kozeschnik, Ernst; Kieslinger, Dietmar; Ecker, Werner

doi:10.1109/eurosime.2019.8724583

Cited by 4 publications

(1 citation statement)

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“…Furthermore, general framework models have been derived from thermodynamic considerations. To the best knowledge of the authors, a mechanistic damage-healing model for liquid-assisted healing has not been published up to now, except a proceeding by the current authors, which presents a previous and simpler model (Siroky et al., 2019). An overview of several damage-healing models for specific and general purposes is provided in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Micromechanics-based damage model for liquid-assisted healing

Siroky

Kraker

Kieslinger³

et al. 2020

International Journal of Damage Mechanics

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This work presents a damage evolution framework including liquid-assisted healing. The model incorporates contributions from void size, void pressure, surface tension and liquid pressure. Experimental motivation for the damage-healing model is provided with in-situ melting experiments, where the evolution of the void distribution under monotonic tension is illustrated. The damage evolution is based on nucleation and growth of voids, which are modeled in a unified creep and plasticity framework. The proposed damage formulation introduces a void collective, which computes the void distribution in the material and allows to describe void collapse using the Rayleigh-Plesset equation. The necessary conditions for healing are discussed with use of model results. Particularly, the role of external load during healing, the dependence on liquid viscosity and surface tension are investigated.

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Section: Introductionmentioning

confidence: 99%