Meso-Scale Failure of Freezing–Thawing Damage of Concrete under Uniaxial Compression

Rheological-dynamical Continuum Damage Model for Concrete under Uniaxial Compression and Its Experimental Verification

A new analytical model for the prediction of concrete response under uniaxial compression and its experimental verification is presented in this paper. The proposed approach, referred to as the rheological-dynamical continuum damage model, combines rheological-dynamical analogy and damage mechanics. Within the framework of this approach the key continuum parameters such as the creep coefficient...

Failure Prediction of Stringer Stiffened Composite Panels with Impact Damage under Uniaxial Compression

The in-plane compressive behaviour of thin-skin stiffened composite panels with a stress concentrator in the form of an open hole or low velocity impact damage is examined analytically. A fracture mechanics model, developed initially to predict notched compressive strength, was applied to estimate the compression-after-impact strength of a stiffened panel; in the analysis the impact damage is r...

Meso-scale Simulation of Influence of Frost Damage on Mechanical Properties of Concrete

Meso-scale constitutive models of frost-damaged concrete are developed in this study through numerical simulation using a two-dimensional Rigid Body Spring Model (RBSM). The aim of the simulation is to predict the macro behavior of frost-damaged concrete subjected to mechanical loading. The models also clarify the difference in failure behavior of concrete with and without frost damage. Zero st...

Buckling of Ge nanowires under uniaxial compression

Molecular dynamics simulations are performed to investigate the buckling properties of [100]-, [110]-, [111]-, and [112]-oriented single-crystalline germanium nanowires under uniaxial compression. The effects of simulation temperature, strain rate, and wire length on the buckling behaviour are investigated. The simulation results indicate that critical load clearly decreases with increasing tem...

Damage Detection of Carbon Fiber-reinforced Concrete Under Bending Test