nCode DesignLife is an up-front design tool that identifies critical locations for performing fatigue analysis from leading FEA results data, including ANSYS. Workshop / Tutorial 1: Introduction to the ANSYS nCode DesignLife Interface Workshop / Tutorial 2: Constant amplitude Stress life fatigue analysis. Workshop .
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The Composite Analysis option allows users to evaluate the strength of a structure against industry standard composite failure criteria. The stress tensor for each layer and section integration point through the thickness is read by DesignLife from FE results.
This allows critical locations, load combinations and associated design reserve factors to be readily identified.
See how our customers are using our software: This feature makes it easy to create a composite duty cycle with repeats. Distributed Processing enables a DesignLife analysis running in batch mode to be distributed across multiple computers or nodes of a computer cluster.
Python scripting is also available for defining custom fatigue methods and material models. Structural stress at the weld toe, the hot-spot stress can be estimated by the extrapolation of the surface stress at points near the weld Supports BS welding standard, together with required material curves Enables vibration specification data to be entered, edited, and viewed.
Engineers without fatigue expertise can evaluate modified product designs to determine the updated product life. Manufacturing effects can be accounted for by using equivalent plastic strain in the unloaded component. Simulate vibration tests driven by random PSDswept sine, sine dwell or sine-on-random loading Predict damage and life per layer and integration point Incorporate results of manufacturing simulation including fibre orientation tensors or residual stresses Model local fatigue properties based on microstructure orientation tensor and stress state Calculate fatigue based on principal stresses or critical plane — including stresses calculated from FE-Digimat and multiaxial stress states Choice of fatigue property model – SN curve interpolation or interface to Digimat Use of homogenized matrix or fibre stresses as well as typical composite ones.
ANSYS nCode DesignLife
Approximate calculations of the strain energy release rate are made at the edge of the adhesive and, by comparison to the crack growth threshold, a safety factor is calculated. Processing threads enable you to get finished results ansus raw inputs in faster. Dang Van is a multi-axial fatigue limit criterion and ansyw a method of predicting the endurance limit under complex loading situations.
DesignLife provides methods to intelligently identify weld lines in the FE model, thus simplifying the process of setting up a fatigue job. Fatigue Analysis using FEA Results Design for Durability Attendees looking to learn more about the background of fatigue theory are encouraged to attend our 2-day course called Practical Fatigue Theory. Applications include components that are both mechanically and thermally loaded such as vehicle exhaust systems and manifolds.
A standard database with fatigue properties for many commonly used materials is included. ANSYS nCode DesignLife contains the most up-to-date methods and simulation tools to make predicting fatigue life as accurate and easy as possible.
Introduction to ANSYS nCode DesignLife
Time histories due to applied loads can be extracted for direct correlation with your measured strain or displacement data. Although this is primarily a CAE based analysis, the same method may also be applied to measured stress data. Enables you to rapidly solve jobs by using the combined processors of many machines.
The method is based tutlrials the approach developed by Volvo see also SAE paper and validated through years of use on vehicle chassis and body development projects. The output from the analysis is expressed as a safety factor rather than fatigue life. The following courses feature hands-on examples with DesignLife: Animating displacements from FE results or animation files display structural deformation under load.
They then ran xnsys thermal-stress tutorails again with the new design, exported the stresses to nCode DesignLife, and combined the results with a material model and a description of the repetitive loading that the product is expected to undergo during operation. The theoretical basis of the method was developed by the Volvo Group and dexignlife testing and software implementation was carried out as part of a collaborative research project with partners including Jaguar Land Rover, Coventry University and Warwick University.
Adhesive bonds are modeled with beam elements and grid point forces are used to determine line forces and moments at the edge of the glued flange. The same structural stress technique used for seam welds is used in WholeLife to determine the structural bending and membrane stresses at the weld.
Multiple threads can also be used to speed up the translation phase of the analysis by splitting the translation into multiple processes. Vibration Manager Enables vibration specification tuttorials to be entered, edited, and viewed.
The Short Fibre Composite option uses stress-life fatigue calculations for anisotropic materials such as glass fibre filled thermoplastics. Material models can also be defined using general look-up curves. Based on the results of the finite element analysis, fatigue life estimation and durability testing, the new utility vehicle frame design was released for production.
A standard database containing over vibration entries is included. The Strain-Life method is applicable to a wide range of problems including low-cycle fatigue with the local elastic-plastic strain controls the fatigue life. Stresses from a complete finite element model are analyzed in a single analysis process. The following methods can be used individually or combined to give the most conservative result: Uses specific material parameters calculated from tensile and torsion tests.
It design,ife an integrated approach for modeling fatigue over the entire lifetime of a component – ncose the very early stages to final fracture – to give more accurate determination of weld lives particularly for complex geometries. Commercial truck owners needing weight and fuel economy savings are considering the benefits of a single wide-base wheel. This enables the ability to interpolate multiple material data curves for factors such as mean stress or temperature.
In addition, selected location loading paths may be visually compared with the material failure envelope. Biaxial 3D Multiaxial Auto-correction Mean stress tutofials Includes a batch interface program to simplify the running of distributed jobs. This method is widely used as a key design criteria for engine and powertrain components like crankshafts, camshafts and pistons.
Simulate complex ncide scenarios using any time domain method static or modal superposition, duty cycles, etc.
Introduction to ANSYS nCode DesignLife – FEA, CFD and Explicit Dynamics
High temperature fatigue methods: Want to learn more? Biaxial 3D Multiaxial Auto-correction.
The primary application of the Stress-Life SN method is high-cycle fatigue long lives where nominal stress controls the fatigue life. Enables vibration specification data to be entered, edited, and viewed. Start-to-end automation tutoirals the majority of errors and ensures consistency, especially in large organizations in which multiple engineers might be analyzing the results. The Thermo-Mechanical Fatigue TMF option provides solvers for high temperature fatigue and creep by using stress and temperature results from finite element simulations.
Find training Request ncose Contact us. Material inputs are standard mean stress corrections or user-specified Haigh diagrams to assess durability.