Creep failure in heterogeneous materials from the barrier landscape

2025/07/01 by Juan Carlos Verano-Espitia, Verano-Espitia, Juan Carlos, Tero Mäkinen +5
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Material Dynamics and Properties #Material Properties and Processing #Statistical Mechanics (cond-mat.stat-mech) #Theoretical and Computational Physics

paper · pdf · doi:10.48550/arxiv.2507.00661

openalex publication_date 2025/07/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Stressed under a constant load, materials creep with a final acceleration of deformation and for any given applied stress and material, the creep failure time can strongly vary. We investigate creep on sheets of paper and confront the statistics with a simple fiber bundle model of creep failure in a disordered landscape. In the experiments, acoustic emission event times t_j were recorded, and both this data and simulation event series reveal sample-dependent history effects with log-normal statistics and non-Markovian behavior. This leads to a relationship between t_j and the failure time t_f with a power law relationship, evolving with time. These effects and the predictability result from how the energy gap distribution develops during creep.

Citations

• Microscopic description of the intermittent dynamics driving logarithmic creep
• Effect of quenched heterogeneity on creep lifetimes of disordered materials
• History effects in the creep of a disordered brittle material
• Creep rate based time to failure prediction of adhesive anchor systems\n under sustained load
• Monte Carlo and kinetic Monte Carlo methods
• Convergent multiplicative processes repelled from zero: power laws and truncated power laws
• Frequency factors and isotope effects in solid state rate processes

Related

• Load-Dependent Power-Law Exponent in Creep Rupture of Heterogeneous Materials
• Prediction of creep failure time using machine learning
• Failure precursors and failure mechanisms in hierarchically patterned paper sheets in tensile and creep loading
• Effect of quenched heterogeneity on creep lifetimes of disordered materials
• Universality classes in creep rupture