Customized lumbar spine response finite element model for crash test dummy and method

A method of creating a customized lumbar spine response finite element model for a lumbar spine of a crash test dummy, said method comprising the steps:

• identifying two borderline sets of test data profiles for the lumbar spine that match with extremes of test data profiles of the lumbar spine for the crash test dummy;
• varying material properties of the lumbar spine for the crash test dummy;
• defining a mapping function to adjust the material properties and allowing intermediate sets of the test data profiles to be interpolated from the test data profiles;
• creating a single lumbar spine response finite element model for the lumbar spine of the crash test dummy with a user-defined input parameter for the lumbar spine response finite element model that defines a customized response, wherein the customized response is equal to a lumbar spine moment peak;
• and
• internally calibrating material cards for the lumbar spine using a parameter script to reproduce a lumbar spine moment.

A method of creating a customized lumbar spine response finite element model for a lumbar spine of a crash test dummy, said method comprising the steps of:

• setting a lumbar spine moment at a maximum value and a minimum value of certification corridors for the lumber spine;
• identifying two borderline sets of test data profiles for the lumbar spine that match with extremes of test data profiles of the lumbar spine;
• varying material properties of the lumbar spine;
• defining a mapping function to adjust the material properties and allowing intermediate sets of the test data profiles to be interpolated from the test data profiles;
• creating a single lumbar spine response finite element model for the lumbar spine of the crash test dummy with a user-defined input parameter for the lumbar spine response finite element model that defines a customized response, wherein the customized response is equal to a lumbar spine moment peak and the lumbar spine moment is a default value corresponding to an average value of lumbar spine pendulum test response for the crash test dummy;
• and
• internally calibrating material cards for the lumbar spine using a parameter script to reproduce a lumbar spine moment.