Task Group 1.4
Probabilistic nonlinear finite element modelling, quality control and lifetime assessment for today's engineering practice Mission Statement/Objectives In the past few years, there has been an increasing societal and industrial demand for the reliable assessment and design of structural systems with service-life criteria of at least several decades. The life cycle characterisation of engineering structures in terms of an anticipated service life remains a significant aspect of sustainability in the construction industry. This requires special attention to the definition of structural performance under various actions, and to the implemented engineering materials and methods as well as to the inverse identification and monitoring of structural conditions. In this period of TG1.4, the basic reliability concepts of probabilistic non-linear finite element modelling of performance-based assessment with a focus on service life assessment in conjunction with reliability and safety concepts are addressed. The proposed methodology is verified using case studies from the design of structural components and the importance of quality assurance in the service life assessment of civil engineering structures is demonstrated. We have also confirmed that reliability and quality assurance criteria are closely related. Therefore, a methodology for quality-based service life assessment is presented and elaborated on the basis of case studies.
TG1.4 focuses on systems, continuum mechanics, engineering structures, static and dynamic aspects, time-dependent aspects, linear and nonlinear material and system aspects, finite element methods (FEM), discrete element methods (DEM) and associated methods, partial safety factor and reliability index/probabilistic based safety formats. TG1.4 does NOT focus on design, systems with large deformations and large non-linear effects, load models, structures made of timber, soil systems. The output of TG1.4 in the previous term, 2017-2023, will serve as basis for the activities, among others:
Expected Project Output
Start Date: May 2024 | Chair Members |
IABSE | Have a question?
|