Finite Element Analysis is one of the most popular and sought after service in APA’s Engineering Services vertical. Several global engineering and process industries have engaged our FEA analysts to deliver high quality solutions in this area. The team has deep dive experience in each of the following topics.

Static and Dynamic Analysis

Spike load with yield criteria and Runtime load with fatigue criteria 

Thermal Analysis

Analysis of stress caused by restricted thermal expansion  

Modal Analysis

Analysis of mass movements in weak directions and identifying frequencies.

Fatigue and Fracture Analysis

Crack initiation life and remaining life calculations for failure. 

Multi Body Dynamics

Interaction between joints and contacts for full system. 

Non linear explicit analysis

Analysis of large deformations, membrane effects, nonlinear material, contact stresses,buckling, or nonlinear supports in assemblies.

Topology / Shape Optimization

Optimize overall shape of complex structures through length, width & thickness analysis.

Design of Experiment

Statistical analysis of outputs through controlled changes in multiple input variables.

Case Study

Problem Statement:

To determine the maximum stress locations and maximum stress range on the electro-stopper, under fatigue condition

Input:

• 3D Electro-Stopper – Step file
• Static load of about 20Kg (200N) is applied on the face of the stopper.
• Linear material property.

Tools Used:

• Meshing – HyperMesh
• Solver - Nastran

Methodology:

• Geometry cleaning up and second order tetra meshing of all the parts.
• Modal Analysis to find the natural frequency of the stopper.
• Static load and Fatigue load analysis to find the high stress locations and life cycle of the component.

Key Challenges:

Defining & Meshing of the mating parts.

Deliverables:

• High stress locations.
• Stress Range for fatigue loads.
• Endurance Stress and Fatigue factor.

Design Efforts:

40Hrs approx.

Problem Statement:

Scope of work is to check the structural integrity of the thermostat  with static and dynamic loading

Input:

• 3D thermostat – Step, Iges file
• Material and its mechanical properties.
• Static & fatigue load

Tools Used:

• Meshing – HyperMesh
• Solver - Nastran

Methodology:

Defining the right thickness of knurling area to withstand the fatigue load.

Key Challenges:

Defining & Meshing of the mating parts.

Deliverables:

• Stress, Deformation, High stress locations and their strength values.
• Stress Range for fatigue loads.
• Endurance Stress, No of load cycles.

Design Efforts:

75 Hrs approx.

Problem Statement:

Scope of work is to check the structural integrity of the Straight & Circular Doorknob assembly with static loading

Input:

• CAD Model – Step file
• Static load of about 200Kg.
• Linear material property

Tools Used:

• Meshing – Hyper Mesh
• Solver - Nastran

Methodology:

Geometry cleaning up and second order tetra meshing of all the parts.Static load is applied in all six directions to find the high stress locations.

Key Challenges:

Defining & Meshing of the mating parts.

Deliverables:

High Stress locations for static loads.

Design Efforts:

80 Hrs approx.

Demo / Trial / Enquiry