Came across this neat explanation of the difference between nodal stress and element stress. I feel it is necessary to share this note because I have been asked several times about this question. This is definitely one of the fundamental concepts that a structural analyst should understand and be able to explain. Enjoy reading! It … Continue reading Note: What is the difference between Nodal Stress and Element Stress?
General
Orthotropic Material-Modelling a Wood Pallet Using SolidWorks Simulation
The post provides a detailed walkthrough of modeling a wood pallet using SolidWorks Simulation, including material properties, coordinate systems, contact areas, and result interpretation.
Material nonlinearity: elasto-plastic analysis of a statically indeterminate truss
This is another simple problem of a statically indeterminate truss. Bilinear kinetic hardening material model is used. The beauty of this problem is that as the force increases, it can be expected that the vertical member and slant members will develop into the plastic stage consecutively. That will be seen later from the equilibrium path. … Continue reading Material nonlinearity: elasto-plastic analysis of a statically indeterminate truss
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
Geometric nonlinearity: a simple two-member truss problem
In geometric linearity, the equilibrium equation is established in the undeformed state and will not be updated with deformation. In other words, we ignore the small deformation of the geometry to simplify the calculation. This does not seem to be in line with the core idea of structural mechanics, because the calculation of deformation is … Continue reading Geometric nonlinearity: a simple two-member truss problem
Plastic limit analysis of a statically indeterminate beam
A structure can become unstable when a load reaches its buckling value or when nonlinear material becomes unstable. It is possible to observe the full response of a structure under proportional (ramped) loads using elastic-plastic analysis in ANSYS, so the plastic limit load and the location of plastic hinges can be determined. In this post, … Continue reading Plastic limit analysis of a statically indeterminate beam
A comparison between ANSYS Mechanical and Simulation in SolidWorks
A Comparison between ANSYS Mechanical and SolidWorks Simulation
The large deformation analysis of a hyperelastic tensile test sample
This example shows the static analysis of a tensile test sample made of rubber. The dimensions of the sample are shown in the following figure. The thickness of the sample is 1.5mm. Using the symmetry, only 1/8 of the sample is analyzed. After solving the 1/8 model, the results of the full model can be … Continue reading The large deformation analysis of a hyperelastic tensile test sample
Contact Analysis of a Pipe-clamp Assembly
We have discussed multiple examples of contact analysis so far. In this post, we are going to investigate a pipe-clamp assembly. By using a pretensioned bolt, the clamp holds the pipe firmly (see the following figure). If the pretension is insufficient, slipping would happen between the pipe and clamp. If the pretension is too large, … Continue reading Contact Analysis of a Pipe-clamp Assembly
The stress and deformation analysis of a rubber O ring
In this post, we are going to analyze the stress and deformation of a rubber O ring as shown in the following figure. The rubber O ring is often used for sealing purposes. It may be under large pressure and its deformation is constrained by the sealing groove. Due to the large difference in the … Continue reading The stress and deformation analysis of a rubber O ring
Xutao Sun 