On the use of British standard 7910 option 1 failure assessment diagram to non‐metallic materials

J.D Fuentes,S Cicero,I Procopio,F.T Ibáñez-Gutiérrez

doi:10.1111/ffe.12668

Abstract

AbstractThis paper provides a structural integrity assessment methodology for the analysis of non‐metallic materials. The approach uses the British standard 7910 option 1 failure assessment diagram, originally proposed for the fracture‐plastic collapse assessment of metallic materials. The methodology has been applied to 60 fracture specimens, combining 12 different materials and covering polymers, composites, and rocks. The results obtained validate the proposed assessment methodology and demonstrate its safety for the materials analysed here.

Highlights

A considerable number of structural failures are associated to the presence of crack-like defects
Most structural integrity assessment procedures have only addressed the prediction of the fracture-plastic collapse of metallic materials
FITNET FFS Procedure1 states the following in the introduction of the Fracture Module (Section 6): “The FITNET Fracture Module described is based on fracture mechanics principles and is applicable to the assessment of metallic structures containing actual or postulated flaws

Summary

Introduction

A considerable number of structural failures are associated to the presence of crack-like defects. In order to avoid or predict such failures, structural integrity assessment procedures[1,2,3,4] make wide use of fracture mechanics concepts and derivative tools such as Failure Assessment Diagrams (FADs). Most structural integrity assessment procedures have only addressed the prediction of the fracture-plastic collapse of metallic materials. FITNET FFS Procedure states the following in the introduction of the Fracture Module (Section 6): “The FITNET Fracture Module described is based on fracture mechanics principles and is applicable to the assessment of metallic structures (with or without welds) containing actual or postulated flaws. Re this Module is to determine the significance, in terms of fracture and plastic collapse, of flaws postulated or present in metallic structures and components”.

Objectives

Methods

Findings

Conclusion