The thermomechanical fatigue (TMF) of single-crystal air-cooled turbine blades is critical for accurately evaluating the lifetimes advanced aero-engines. present work focuses on mechanical behavior and damage mechanism a Ni-based superalloy (DD6) under stress-controlled TMF loading, in-phase (IP) out-of-phase (OP) mode were conducted compared with low cycle (LCF) loading. A ratcheting effect ob...

Inverse first-order reliability method for probabilistic fatigue life prediction of composite laminates under multiaxial loading Yibing Xiang and Yongming Liu* Department of Civil and Environmental Engineering Clarkson University Potsdam NY.13699, USA Abstract: Multiaxial fatigue reliability is a challenging problem despite extensive progress made during the past few decades. Anisotropic materi...

Abstract Elastic wheel is an important component of the low floor tram using in urban rail transit, so it significance to optimize its structure and predict service lifetime. Firstly, fatigue characteristics rubber material are studied based on crack energy theory, a finite element model elastic for lifetime prediction constructed. The numerical simulation results show that such does not match ...

Structural deterioration is becoming a major problem when considering long term performance of infrastructures. The existence of a corrosive environment, cyclic loading and concrete cracking cause structural strength degradation. The interaction of these conditions can only be taken into account when modeling the coupled action. In this paper, a new model to assess lifetime of RC structures sub...

Reliability analysis of fatigue lifetime design has two assignments: a. To forecast fatigue lifetime of the structure on given reliability level, b. To evaluate reliability level of the structure on given service conditions, material features and designing dimensions. It aims at evaluating the structure’s designing quality and providing a basis for designing improvement or manufacturing. At mea...

Structures under cyclical loading are prone to fatigue-induced cracks. These cracks reduce structures’ residual life and increase their risk of failure. Historically, engineers have used degradation models like Paris’ law estimate crack length when planning repair maintenance on such structures. In this study, we developed a method parameters that useful for predicting the fatigue 2024-T3 alumi...

Fatigue design of engineering structures is typically based on lifetime calculation using a cumulative damage law. The linear rule by Miner the universal standard for fatigue even though numerous experimental studies have shown its deficiencies and possible non-conservative outcomes. In an effort to overcome these deficiencies, many nonlinear models life prediction been developed since; however...