US 2026/0260037 A1Published application

Systems, apparatuses, controllers, and methods providing enhanced fatigue strength analysis

AssigneeVulcan Industrial Holdings, LLC

InventorBenjamin Berryhill

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Abstract

Systems, apparatuses, controllers, and methods may provide enhanced fatigue strength analysis by providing accurate and coordinate system invariant results. First and second localized load measure tensors associated with first and second instants in time and a component may include first, second, and third tensor invariants. The third tensor invariant may be non-collinear relative to the first tensor invariant or the second tensor invariant, and the first and second localized load measure tensors may be determined at an orientation relative to a coordinate system. First, second, and third fatigue strengths having respective load ratios and lives associated with the component may be used to determine an equivalent localized load measure associated with the component.

Claims30

Dependent claims

A method to enhance prediction of fatigue strength associated with a component, the method comprising:

determining a first localized load measure tensor associated with a first fatigue-relevant instant in time and a portion of the component, the first localized load measure tensor having a first tensor invariant;
determining a second localized load measure tensor associated with a second fatigue-relevant instant in time and the portion of the component, the second localized load measure tensor having a second tensor invariant, one of the first localized load measure tensor or the second localized load measure tensor having a third tensor invariant, the third tensor invariant being non-collinear relative to one of the first tensor invariant or the second tensor invariant of the one of the first localized load measure tensor or the second localized load measure tensor, and the first localized load measure tensor and the second localized load measure tensor being determined at an orientation relative to a coordinate system;
determining a first fatigue strength, the first fatigue strength being a single-load-mode fatigue strength and having a first loading mode, a first load ratio, and a first life associated with the portion of the component;
determining a second fatigue strength, the second fatigue strength being a single-load-mode fatigue strength and having a second loading mode, a second load ratio, and second life associated with the portion of the component;
determining a third fatigue strength, the third fatigue strength being a single-load-mode fatigue strength and having a third loading mode, a third load ratio, and a third life associated with the portion of the component;
and
determining, via a fatigue strength analyzer and based at least in part on the first tensor invariant, the second tensor invariant, the third tensor invariant, the first fatigue strength, the second fatigue strength, and the third fatigue strength, an equivalent localized load measure associated with the portion of the component, such that the equivalent localized load measure is substantially independent of the orientation relative to the coordinate system.

4 more elements

A fatigue strength analyzer for enhancing prediction of a fatigue strength associated with a component, the fatigue strength analyzer comprising:

a fatigue analysis controller configured to:
receive a first localized load measure tensor signal indicative of a first localized load measure tensor associated with a first fatigue-relevant instant in time and a portion of the component, the first localized load measure tensor having a first tensor invariant;
receive a second localized load measure tensor signal indicative of a second localized load measure tensor associated with a second fatigue-relevant instant in time and the portion of the component, the second localized load measure tensor having a second tensor invariant, one of the first localized load measure tensor or the second localized load measure tensor having a third tensor invariant, the third tensor invariant being non-collinear relative to one of the first tensor invariant or the second tensor invariant of the one of the first localized load measure tensor or the second localized load measure tensor, and the first localized load measure tensor and the second localized load measure tensor being determined at an orientation relative to a coordinate system;
determine a first fatigue strength, the first fatigue strength being a single-load-mode fatigue strength and having a first loading mode, a first load ratio, and a first life associated with the portion of the component;
determine a second fatigue strength, the second fatigue strength being a single-load-mode fatigue strength and having a second loading mode, a second load ratio, and second life associated with the portion of the component;
determine a third fatigue strength, the third fatigue strength being a single-load-mode fatigue strength and having a third loading mode, a third load ratio, and a third life associated with the portion of the component;
and
determine, based at least in part on the first tensor invariant, the second tensor invariant, the third tensor invariant, the first fatigue strength, the second fatigue strength, and the third fatigue strength, an equivalent localized load measure associated with the portion of the component, such that the equivalent localized load measure is substantially independent of the orientation relative to the coordinate system.

5 more elements

An oilfield operational component comprising:

a component geometry;
and
a component material having a material fatigue limit and forming the component geometry, the oilfield operational component being configured such that when subjected to cyclic loading the oilfield operational component has an equivalent localized load measure less than or equal to the material fatigue limit, the equivalent localized load measure being determined according to a fatigue strength model configured to:
receive a first localized load measure tensor signal indicative of a first localized load measure tensor associated with a first fatigue-relevant instant in time and a portion of the component, the first localized load measure tensor having a first tensor invariant;
receive a second localized load measure tensor signal indicative of a second localized load measure tensor associated with a second fatigue-relevant instant in time and the portion of the component, the second localized load measure tensor having a second tensor invariant, one of the first localized load measure tensor or the second localized load measure tensor having a third tensor invariant, the third tensor invariant being non-collinear relative to one of the first tensor invariant or the second tensor invariant of the one of the first localized load measure tensor or the second localized load measure tensor, and the first localized load measure tensor and the second localized load measure tensor being determined at an orientation relative to a coordinate system;
determine a first fatigue strength, the first fatigue strength being a single-load-mode fatigue strength and having a first loading mode, a first load ratio, and a first life associated with the portion of the component;
determine a second fatigue strength, the second fatigue strength being a single-load-mode fatigue strength and having a second loading mode, a second load ratio, and second life associated with the portion of the component;
determine a third fatigue strength, the third fatigue strength being a single-load-mode fatigue strength and having a third loading mode, a third load ratio, and a third life associated with the portion of the component;
and
determine, based at least in part on the first tensor invariant, the second tensor invariant, the third tensor invariant, the first fatigue strength, the second fatigue strength, and the third fatigue strength, an equivalent localized load measure associated with the portion of the component, such that the equivalent localized load measure is substantially independent of the orientation relative to the coordinate system.

7 more elements

A system for enhancing prediction of fatigue strength associated with a component, the system comprising:

at least one processor configured to cause execution of a fatigue strength model configured to predict the fatigue strength of the component, the fatigue strength model being configured to:
receive a first localized load measure tensor signal indicative of a first localized load measure tensor associated with a first fatigue-relevant instant in time and a portion of the component, the first localized load measure tensor having a first tensor invariant;
receive a second localized load measure tensor signal indicative of a second localized load measure tensor associated with a second fatigue-relevant instant in time and the portion of the component, the second localized load measure tensor having a second tensor invariant, one of the first localized load measure tensor or the second localized load measure tensor having a third tensor invariant, the third tensor invariant being non-collinear relative to one of the first tensor invariant or the second tensor invariant of the one of the first localized load measure tensor or the second localized load measure tensor, and the first localized load measure tensor and the second localized load measure tensor being determined at an orientation relative to a coordinate system;
determine a first fatigue strength, the first fatigue strength being a single-load-mode fatigue strength and having a first loading mode, a first load ratio, and a first life associated with the portion of the component;
determine a second fatigue strength, the second fatigue strength being a single-load-mode fatigue strength and having a second loading mode, a second load ratio, and second life associated with the portion of the component;
determine a third fatigue strength, the third fatigue strength being a single-load-mode fatigue strength and having a third loading mode, a third load ratio, and a third life associated with the portion of the component;
and
determine, based at least in part on the first tensor invariant, the second tensor invariant, the third tensor invariant, the first fatigue strength, the second fatigue strength, and the third fatigue strength, an equivalent localized load measure associated with the portion of the component, such that the equivalent localized load measure is substantially independent of the orientation relative to the coordinate system.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 19/149,233Filed 5 Sep 2023
Priority: 3 Feb 2023
Published: 3 Sep 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

G06F 30/23
Design optimisation, verification or simulation: using finite element methods [FEM] or finite difference methods [FDM]
G01M 99/007
Subject matter not provided for in other groups of this subclass: by applying a load, e.g. for resistance or wear testing
G06F 30/18
Geometric CAD: network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air…
G01N 2203/0214
Theories, calculations: calculations a priori without experimental data