ESI Group provides numerical models of the human body, which can complete the simulation tools used in different fields. These models allow you to perform realistic global simulation and parametric studies. Refined models give access to the local behavior, which is difficult or impossible to analyze with experimental tests.

Thanks to sophisticated and adapted tools, you can now effectively produce prototypes of the biomechanical system and transcribe all the relevant physical conditions into its virtual substitute.

What you gain:

• Fully compatible tools within the ESI Group software suite: Biomechanics can be plugged into PAM-CRASH, PAM-SAFE, PAM-OPT, PAM-SHOCK or PAM-MEDYSA.
  
• Intuitive graphical interface to easily access all the functionalities you need to set-up your model.
  
• Precise functionalities for biomechanical applications. You can choose the most adapted functions to match the physics:
• Contact Interface
• Joint System
• Constraints
  
• Ever more sophisticated algorithms will solve vibration problems in dynamic tests or address problems in static tests.
  
  
• Save in calculation time thanks to our multi-tasked codes. This feature decreases CPU time by a factor of 10.

ESI Group offers two virtual families of human models: H-Model and ROBBY. 

H-Model Family

H-Model is a family of biomechanical models enabling injury risk studies such as bone fracture, ligament tearing, organ damage, etc... It includes head, neck, thorax, abdomen, shoulder, upper extremity, lower extremity, ankle/foot parts. 

The H-Model is a "Human Articulated Rigid Body (HARB)" model, where a rigid outer skin represents the body segments, connected to each other by various non-linear joint types. 

ROBBY Family

The human articulated rigid body (HARB) models of the existing 50th percentile male (Robby 2) and of the 5th percentile female (Robina) are used as a basis for modular replacements of rigid body segments (head, neck, thorax, upper extremities, abdomen, pelvis, lower extremities) with their corresponding truly deformable finite element models. Several extensions of the basic HARB models have been made, concerning the addition of a fully articulated spine, internal organs and active and passive muscle bars.