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
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
Examples of 3D Mapped Meshing
In the last post, some examples of 2D mapped meshing are given. Here we are going to look at some examples of 3D mapped meshing. Similar to 2D mapped meshing, the strategy is straightforward: divide the domain in such a way that all the subdomains meet certain requirements, specify the element size or the number … Continue reading Examples of 3D Mapped Meshing
The application of contact elements: A bolted beam-column connection
In this post, we are going to explore the application of CONTA174 (i.e. 3D 8-node face-face contact element). CONTA174 is used to represent contact and sliding between 3D target surfaces and a deformable surface defined by this element. It can be used for both pair-based contact and general contact. In the case of pair-based contact, … Continue reading The application of contact elements: A bolted beam-column connection
The application of MACRO and *DOWHILE
In this post, I will show an example of using MACRO and *DOWHILE. The APDL is developed to model an experiment as shown below. Essentially it is a clamped-clamped cracked beam carrying a body. An important feature of the body is that its mass distributes far away from its centroid, hence the rotary inertia would … Continue reading The application of MACRO and *DOWHILE
Examples of 2D Mapped Meshing
Some techniques in 2D mapped meshing
Large Lateral Deflection of Unequal Stiffness Springs
A two-spring system is subjected to a force F as shown below. l=10 cm, k1=8N/cm, and k2=1N/cm. F=5*2^0.5N. Determine the strain energy of the system and the displacements δx and δy. The solution to this problem is best obtained by adding mass and using the "slow dynamics" technique with approximately critical damping. Combination elements (COMBIN40) are … Continue reading Large Lateral Deflection of Unequal Stiffness Springs
Xutao Sun 