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**Job Post: ANSYS APDL Expert Needed for Biomechanical Analysis of Porous FGM Knee Implant** **Project Description:** I am working on a finite element analysis of a **porous functionally graded material (FGM) knee implant** using ANSYS. The 3D model was created in SolidWorks and analyzed in ANSYS Workbench. The model was then exported to **ANSYS APDL** for detailed analysis. The tibial implant and cortical bone were divided into **medial and lateral paths**, and nodal stress values were extracted. However, the results are **illogical and require expert validation and correction**. --- **Key Issues with Current Results:** 1️⃣ **Illogical Stress Distribution:** - Implant stress is **lower than bone stress** (opposite of expected biomechanical behavior) - Minimal change in stress values with increasing porosity (ϕ) – **should show noticeable variation** 2️⃣ **Data Mismatch:** - Stress values are **illogical** (e.g., implant should bear higher stress than bone) - No significant stress variation across porosity levels (ϕ = 0.0 to 0.6) 3️⃣ **Path Analysis Errors:** - Medial/lateral paths show **irregular stress trends** - Nodal values don’t align with biomechanical expectations --- **Scope of Work:** **Review & Debug APDL Code:** - Validate material properties (FGM porosity gradient: ϕ = 0.0 to 0.6, exponent p = 10) - Verify contact definitions (frictional contact, μ = 0.4) - Check boundary conditions (fixed distal end, ligament/tendon forces) **Re-run Simulation with Corrected Parameters:** - Ensure implant stress > bone stress - Show **decreasing stress with increasing porosity** - Medial side stress < lateral side stress (biomechanically accurate) **Extract & Organize Results:** - Final stress values for **7 nodes on medial/lateral paths** (implants + bone) - Tables/plots for von Mises stress vs. porosity (ϕ) - Comparison with published literature (e.g., Enab 2013, Bahraminasab 2014) **Deliverables:** - Corrected APDL script + full results in Excel/Word - Stress distribution plots (medial vs. lateral) - Brief report explaining corrections made --- **Requirements:** *Expertise in ANSYS APDL** (not just Workbench) Experience with **biomechanical FEA** (implants/bones) Knowledge of **functionally graded materials (FGM)** Understanding of **knee joint biomechanics** Ability to **debug illogical results** and provide scientifically valid outputs --- **Materials Provided:** - SolidWorks model → ANSYS Workbench project - APDL script for path-based stress extraction - Current (illogical) results for reference - List of target nodes and porosity values --- Budget & Timeline:** - Open to discussion (fixed project fee preferred) - Urgent turnaround required (2-3 days) **Please submit your proposal with:** - Examples of similar biomechanical FEA projects - Description of your approach to debug this issue - Estimated timeline and cost Looking forward to collaborating with an expert to resolve this critical issue!*
Project ID: 39745163
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8 freelancers are bidding on average $23 USD for this job

Hello, Please share with me your ansys project, apdl script. I will check your script and results. If you have description of the project it will be nice to read it too. Feel free to contact me.
$30 USD in 7 days
6.0
6.0

Hi Nermeena10, I understand the complexities you're facing with the finite element analysis of your porous FGM knee implant in ANSYS APDL. The issues with illogical stress distributions and data mismatches are critical to address to ensure biomechanical accuracy. I specialize in validating and refining FEA models, particularly in biomechanical applications. I am Habib, a Mechanical Engineer with over 3 years of experience in SolidWorks, Finite Element Analysis, and 3D Modelling. I have successfully tackled similar projects involving biomechanical implants, ensuring that results align with expected biomechanical behaviors. You can view my relevant portfolio here: https://www.freelancer.com/u/habibworkspace I am ready to review and debug your APDL script, re-run necessary simulations, and provide you with precise results in a timely manner. Thank you for considering my proposal. I look forward to the opportunity to collaborate. Regards, Habib
$10 USD in 7 days
3.7
3.7

As an extensively experienced and highly skilled Mechanical Engineer, specializing in SolidWorks and ANSYS, I can assure you that tackling complex engineering problems such as yours is what I thrive on. My past work with similar projects, such as ATV & HPVC Designing and the Prototype Design of Agriculture Machinery, perfectly intersects with your current need for an ANSYS APDL expert to debug biomechanical analyses surrounding knee implants. I possess proficiency in Finite Element Analysis (FEA), which is crucial for this task's completion. Furthermore, having accomplished many varied projects, I've garnered comprehensive familiarity not only with CAD/CAM tools but also with diverse Engineering disciplines ranging from MOM and SOM to Heat Transfer and Fluid Dynamics. With a deep understanding of these fields, I can efficiently analyze physical phenomena and ensure the correct alignment of stress trends in your porosity-based knee joint model. As you prioritize an urgent turnaround, let it be known that my efficiency never comes at the cost quality; I am always meticulous in my simulation works to guarantee scientifically valid results. Also, being conversant in SolidWorks, I can thoroughly scrutinize your SolidWorks-ANSYS workflow for any inconsistencies that might have crept into the project from there. Make me part of your team; let's get those FGM knee implant stress distributions back on track!
$25 USD in 4 days
3.4
3.4

I am Muhammad Danial, an Aerospace Engineer with expertise in FEA, ANSYS Workbench, and APDL scripting. From your description, the key issues are illogical stress distribution, data mismatch, and irregular path analysis. I can review and debug your APDL script, validate the FGM porosity model, correct boundary/contact conditions, and extract accurate stress results across porosity levels (ϕ = 0.0–0.6). My stepwise approach includes debugging, implementing the porosity gradient, applying realistic loads, re-running simulations, and organizing results into validated stress plots and reports. I am confident I can deliver accurate and biomechanically consistent results within the required timeframe. Best Regards, Muhammad Danial Aerospace Engineer |FEA expert
$30 USD in 7 days
1.0
1.0

I read all details of this project .I have complete knowledge to do this work.I can start working immediately. Let's discuss further.
$20 USD in 7 days
0.0
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Hhi I am experienced in this and I can start right now but i have few doubts and questions lets have a quick chat and get it started waiting for your replyyy ! r
$20 USD in 7 days
0.0
0.0

Hello, I am excited about the opportunity to work on the debugging of your ANSYS APDL project for the biomechanical analysis of the porous FGM knee implant. With my extensive experience in finite element analysis and a solid background in biomechanical engineering, I am confident in my ability to resolve the illogical stress distribution and data mismatch you are encountering. I will thoroughly review and debug your APDL code, ensuring that the material properties and contact definitions align with biomechanical expectations. I understand how crucial it is that the implant stress exceeds that of the bone and that stress decreases with increased porosity. My approach will include rerunning the simulations with corrected parameters, organizing the results effectively, and preparing detailed plots and reports as deliverables. I have successfully handled similar FEA projects in the past and can provide examples of work that resonate with your needs. I propose to complete this within a tight timeline of 3 days to ensure you receive the prompt support necessary for your project. Thanks, Muhammad Umair
$30 USD in 3 days
0.0
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