The Eigenvalue Buckling analysis in Workbench takes the results of a Static Structural analysis and calculates the load multiplier that would cause a structural buckling. If in the Static Structural analysis, loads and gravity are applied together to take into account the self-weight of the structure, then the buckling multiplier would also ‘multiply’ the gravity, … Continue reading Two workflows for the buckling analysis of a structure subject to gravity in Ansys
Shell elements
Layered Composite Modeling using Ansys ACP – A Wind Turbine Blade
A wind turbine blade is a long, hollow structural component made of composite material. Due to its slender nature, it is important to conduct a buckling design test to prevent such failure in service. This post illustrates how to use Ansys ACP to set up composite materials and apply them to wind turbine blade buckling … Continue reading Layered Composite Modeling using Ansys ACP – A Wind Turbine Blade
SAE Chassis Frontal Impact Analysis
The chassis is a major part in any automotive design since it is the structural backbone of various functional systems attached to it and is responsible for carrying loads of different components. Using ANSYS Mechanical to analyse a chassis allows different design configurations to be evaluated efficiently, making it possible to assess stiffness and deformation … Continue reading SAE Chassis Frontal Impact Analysis
Nonlinear buckling analysis: considering both large deformation and material nonlinearity
In this post, we are going to do a nonlinear buckling analysis for a thin arch shell under uniformly distributed pressure. The configuration of the arch shell is as follows During the analysis, a linear buckling analysis will be conducted first to obtain the 1st-order eigenvalue (i.e. the linear buckling load) and eigenmode (i.e. buckling … Continue reading Nonlinear buckling analysis: considering both large deformation and material nonlinearity
Harmonic analysis: A steel disk example
Harmonic analysis is used to determine the steady-state response of a linear structure to loads that vary sinusoidally (harmonically) with time, thus enabling you to verify whether or not your designs will successfully overcome resonance, fatigue, and other harmful effects of forced vibrations. This analysis technique calculates only the steady-state, forced vibrations of a structure. … Continue reading Harmonic analysis: A steel disk example
Non-linear analysis of a point-fixed glass curtain wall cable-truss structure
Fig.1 Typical glass curtain walls Some assumptions and simplifications in this problem: Elastic materials Cables are modeled using LINK10 elements with the tension-only option Trusses are modeled using BEAM44 (or BEAM188) elements The glass wall is modeled using SHELL63 elements. Wind load distributes evenly on the surface. The aim of this problem is to calculate … Continue reading Non-linear analysis of a point-fixed glass curtain wall cable-truss structure
Nonlinear analysis of a cable-membrane structure: from shape-finding to static and modal analysis
Fig.1. A typical cable-membrane structure The following assumptions are made in this example: Cables are discretized using LINK10 elements. The membrane is discretized using triangular SHELL41 elements with 'cloth' feature turned on. No slip between cables and membrane. The material complies with Hooke’s Law. The material is orthotropic and elastic. The two principal axes of … Continue reading Nonlinear analysis of a cable-membrane structure: from shape-finding to static and modal analysis
Torsional limit analysis of a container
Fig.1. A typical container This problem is to analyze the torsional limit of an open container (without lid). It is a typical problem in structural nonlinear buckling analysis. As an alternative to the Newton-Raphson method, the arc-length method will be used. Fig.2. A simplified model of the container body Some assumptions and simplifications in this … Continue reading Torsional limit analysis of a container
Elastic-plastic analysis of a reinforced concrete slab strengthened by a carbon fiber sheet
A reinforced concrete slab can be strengthened by adhering carbon fiber sheets to the tension side. This is a common practice in concrete structure reinforcement (as shown in Fig.1) Fig.1. Carbon fiber reinforcement. In this problem, the reinforced concrete slab is simply supported. A carbon fiber sheet is attached to the lower surface of the … Continue reading Elastic-plastic analysis of a reinforced concrete slab strengthened by a carbon fiber sheet
Xutao Sun 