Failure analysis of cemented carbide roller for cold rolling: Material characterisation, numerical analysis, and material modelling

A Review on Fatigue Mechanisms and Approaches for Hard metals

“…This methodology is much greater for cemented carbides which is attributed to operative toughening mechanisms [9], [14]. The penetration of grain boundaries occurred by induced stress dissolution along side grain boundaries of hard phase grains is considered as wide front binder phase [33]as compared to Cobalt grain boundary of diffusion. [34].…”

“…R. Genga et al [48]explained theeffects of machining and milling properties of notched fatigue failure behaviour mechanics approaches based on validation of physical argument [49]. Though, for fatigue crack growth of the notched nearby threshold crack then there is no extensively accepted method to be used [33], [34]. For different materials and notched geometries the verification of based fracture mechanics remains limited approach [50].…”

“…In low-cycle fatigue, the the calculation of stress by elastic formulas is not necessary since strain vs stress is valid approach [29], [31].The deterioration of critical failure structure at strain levels of an element is significantly below its ultimate strain capacity [31], [60]. In elastic range, the high cycle fatigue failure usually occurs aftera number of times of stress are applied and this causes plastic deformation of materials [31], [33]. The Low cycle fatigue is an important consideration in designing of large steel structures and metal machine components.…”

“…Therefore, the failure connection are due to repeated or Cyclic fatigue damage. Considering many factors, according to different authors opinion used ANSYS simulation software to comprehensively analyse the fatigue behavior based on the FE-SAFE module [32], [33]. The FE-SAFE moduleis used for simulation of samples under different strain amplitudes for the purpose of determiningfatigue failure of different material parameters.The estimation methods for fatigue life under uniaxialfatigue specimen analysis is comprehensively analyzed through stress-strain method [46], [59], [67].…”

“…The historical analysis of linear and non linear was conducted in structure and cumulative fatigueat critical locations evaluated and compared with fracture damage observasation [38]. The simulation model uses logarithmic double coordinate system to describe data processed using softwareunderout least-linear regression [22], [38].According to opinion of the author, cumulative fatigue damage evaluation uses linear or non-linear analyst model that gives accurate stress values of damage of the critical connections [33]- [31].…”