Method for modeling non-linear connecting characteristic of vehicle bumper plastic fastener

The invention belongs to the technical field of vehicle simulation, and particularly discloses a method for modeling the non-linear connecting characteristic of a vehicle bumper plastic fastener. The method comprises the steps of 1, obtaining a plastic fastener connecting part from a physical bumper...

Full description

Saved in:
Bibliographic Details
Main Authors ZHOU CHANGKUAN, MA TIANFEI
Format Patent
LanguageChinese
English
Published 13.07.2016
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
Online AccessGet full text

Cover

More Information
Summary:The invention belongs to the technical field of vehicle simulation, and particularly discloses a method for modeling the non-linear connecting characteristic of a vehicle bumper plastic fastener. The method comprises the steps of 1, obtaining a plastic fastener connecting part from a physical bumper structure through shearing, conducting force tensile testing on the plastic fastener in the X direction, Y direction and Z direction by means of an electronic universal testing machine, and drawing an elastic characteristic curve according to force displacement test data of the electronic universal testing machine; 2, setting the parameters of non-linear spring elements according to the test data obtained the step 1 by means of the function means of contact setting of a non-linear spring in ABAQUS. Constrained relationships in three directions of the fastener are replaced with three non-linear spring elements, high precision can be guaranteed, work load is reduced remarkably, and the problem that the precision of
Bibliography:Application Number: CN2016181827