A Mathematical Model for Calculating the Dent Initiation Loads at the Door Centers 841201
A computational procedure is presented to evaluate the static dent resistance at the center of a steel door panel. Using the design parameters of geometric shape, thickness and the stress-strain relations of the steel, the static dent initiation load can be calculated. The method is based on the concept of plastic work which is the non-recoverable energy dissipated in the panel by the applied load. A threshold value of plastic work of 0.02 joule is used to signal the dent initiation. A comparison of the computed and measured dent initiation loads of ten experimental panels shows the maximum deviation is less than 20 newtons.
Citation: Chen, K. and Salamie, P., "A Mathematical Model for Calculating the Dent Initiation Loads at the Door Centers," SAE Technical Paper 841201, 1984, https://doi.org/10.4271/841201. Download Citation
Author(s):
Kuo-Kuang Chen, Paul A. Salamie
Pages: 8
Event:
Passenger Car Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1984 Transactions-V93-84
Related Topics:
Mathematical models
Door panels
Steel
Plastics
Drag
Doors
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