Load Assumption for Fatigue Design of Structures and Components

Abstract

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Sequence effect of p(1/3) spectrum loading on service fatigue strength of as-welded and high-frequency mechanical impact (HFMI)-treated transverse stiffeners of mild steel

“…Background information and further details on the method used to generate the random load sequence can be found in [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47][48][49][50] and will be described and discussed in detail in the near future. This section describes the testing procedure and the realization of the different load sequences of a p (1/3) spectrum in relation to the sequence effect.…”

Fatigue equivalent load approach for fatigue design

“…The case of components subjected to multiple inputs of loads is considered as difficult (see [12], Chapter 6), even in the simple case where the linear superposition principle holds, because of the unknown interactions of the different loads at the local scale. Industrial practice is not well documented but to our knowledge usually consists in analyzing each channel independently.…”

“…Find p * eq such as ∀p, D • L(F eq (p * eq ), p) = D • L(F, p) (12) with p the parameters for any points of any structure in the scope of the design possibilities. Unfortunately this condition is almost never satisfied.…”

Strength and Fatigue Life Analysis Study of Cardan Shaft A Case Study: 4x2 Commercial Vehicle Cardan Shaft

“…Bu çalışmalarda ortaya koyulan temel olgular günümüzde de yapılan çalışmaların temelini oluşturmaktadır. (Köhler, Jenne, Pötter, & Zenner, 2017;Marczewska et al, 2006). Malzemelerin ve makine parçalarının yorulma davranışları yorulma ömür (S-N) eğrileri ile belirlenmektedir (Toasa Caiza & Ummenhofer, 2018).…”