A peridynamic mechano-chemical damage model for stress-assisted corrosion

A structure-based sequential mechano-chemical model

From accumulating studies of hexameric helicases, a mechano-chemical coupling mechanism has emerged which postulates that the nucleoside triphosphate (NTP) hydrolysis is sequentially coordinated together with the binding and translocation of nucleic acid substrate. Various mechano-chemical models have been proposed for different hexameric helicases with no consensus for a common mechanism. To e...

A Continuum Damage Model for the Stress Corrosion Cracking of Austenitic Stainless Steel

In the present work, the mechanical behavior of stress corrosion cracking phenomenon is described. Such phenomenon presents strong complexity due to metallurgic and electrochemical aspects. A methodology for modeling both SSR (Slow Strain Rate) and CL (Constant Load) tests based upon thermodynamics of continuum solids and elastoplastic damage is proposed. In this macroscopic approach, besides t...

Irradiated Assisted Corrosion of Stainless Steel in Light Water Reactors – Focus on Radiolysis and Corrosion Damage

Sensor/Model Fusion for Adaptive Prognosis of Structural Corrosion Damage

Corrosion, stress-corrosion cracking or corrosion-initiated fatigue significantly impact maintenance downtime and structural life limitations of aging aircraft. Both legacy and new air platforms such as the Joint Strike Fighter (JSF), realize that corrosion will likely continue to be a structural challenge that warrants a structural health management system to provide accurate, cost effective a...

Instabilities of a Thermo - Mechano - Chemical System

A Hadamard instability analysis of the partial differential equations governing a coupled thermo-mechano-chemical system predicts instability of the spinoidal decomposition type as well as instability of the "negative creep" type.