Contact Us
Structure Total Human Model for Safety THUMS

THUMS Features

Use the FE model representing the complex structure of a human body to calculate the behavior and damage due to an impact

Total Human Model for Safety ("THUMS ") is a human body model for injury analysis. It is a Finite Element model (FEM) jointly developed by Toyota Motor Corporation and Toyota Central R&D Labs., Inc.The model aims to simulate "human body kinematics" and "injury on human body" in response to a large impact in a car crash and so on. The geometries of the structurally complex human body parts including the head, torso, joints and organs are represented by FE meshes.
Their material properties refer the list in papers or documents and are compared with component tests listed in papers or documents for validation.THUMS is used by engineers the world over and contribute to the safety improvement of human body.

Model description

To simulate the level of injury in a car crash depending on different body types, we provide various models; including 50th percentile male (AM50), the small-build 5th percentile female (AF05), the large-build 95th percentile male (AM95), the ten-year old (10YO), the six-year old (6YO) and the three-year old (3YO).

Posture for occupant safety simulation Posture for occupant safety simulation

Posture for pedestrian safety simulation Posture for pedestrian safety simulation

Versions

Since 1997, THUMS has had four major updates.
Both Commercial and Academic price are available.

Major updates Major updates

Version 4 Version 5
Occupant
AF05/AM50/AM95/3YO/6YO/10YO
Occupant
AF05/AM50/AM95
Pedestrian
AF05/AM50/AM95/3YO/6YO/10YO

Version and configutation of THUMS

Version 5

THUMS Version 5 is the latest version of the THUMS model. With the added ability to model the action of a human body going from a relaxed posture to a braced posture, the effectiveness of safety equipment, including PCS, can be more accurately predicted. Find out more from the press release for THUMS Version 5 available on the Toyota Motor Corporation website.
Announcement from Toyota Motor Corporation

Comparison of occpant posture in the crash-imminent situation, before and after AEB (Automatic Emergency Brake) activation (0.8G) Comparison of occpant posture in the crash-imminent situation, before and after AEB (Automatic Emergency Brake) activation (0.8G)

Version 4

THUMS Version 4, released in 2009, can predict the damage to the bones and internal organs, in addition to head injuries. The human body's geometry and the internal organ mesh, based on detailed CT scans, allow simulation of injury and prediction of the level of damage to a human body. In Version 4.01 released in August 2013, THUMS AM50 is enhanced with the inclusion of gravitational effects and with improved robustness and accuracy. In THUMS AM50 Version 4.02, released in May 2015, the number of head elements was increased fourfold and robustness was improved.
- 630,000 nodes
- 1.80 million elements

Version 4: Internal organ model Version 4: Internal organ model

Version 4.02: Occupant model with the gravitational effects Version 4.02: Occupant model with the gravitational effects

  Version 4
Version 4.02
Version 5
Version 5.01
Fracture and Tendon rupture Yes Yes
Brain damage Yes Yes
Organ damage Yes No
Muscle model No Yes

Comparison of the predictable region between Version 4 and Version 5

THUMS Academic license

We have THUMS Academic License for research and educational insistution.
For the detail, please inquire to us.

Developers

The human body model for injury analysis Total Human Model for Safety (THUMS ) is an FE model that was jointly developed by Toyota Motor Corporation and Toyota Central R&D Labs., Inc.

Page Top

  • *Product names and service names are the trademarks or the registered trademarks of their proprietors.
*CONTACT

Contact Us

Page Top