How to create a session lock using JMeter

Question

I'm trying to recreate a session lock using JMeter with the setup below but i still can't recreate it. Can someone help me how to do it using JMeter?

Application Setup:

• SessionState Mode: SQLServer
• .Net Framework 4.5.2

JMeter Test Plan that I've tried:

1. First Test Plan
   • Thread Group - NumberOfThreads(users):30, Duration:5mins
     • HTTP Request
       • View Result
       • HTTP Cookie Manager - ASP.NET_SessionId:[Value]
2. Second Test Plan
   • 30 Thread Group - NumberOfThreads(users):1, Duration:5mins
     • HTTP Request
       • View Result

From what I understand, you can recreate a session lock if you run multiple request at the same time with only one session.